A bacterial spore is a spore or spore like structure produced by bacteria . These include Endospore Akinete Spores produced by Actinobacteria and Azotobacter dab ... more details
Bacterial genetics is the subfield of genetics devoted to the study of bacteria. Bacterial genetics are subtly different from eukaryotic genetics, however bacteria still serve as a good model for animal genetic studies. One of the major distinctions between bacterial and eukaryotic genetics stems from the bacteria s lack of membrane bound organelles this is true of all prokaryotes. While it is a fact that there are prokaryotic organelles, they are never bound by a lipid membrane, but by a shell of proteins , necessitating protein synthesis occur in the cytoplasm . Genetics stub Category Bacteria Category Genetics ... more details
Mergeto Microbial toxins date April 2010 A bacterial toxin is a type of toxin that is generated by bacteria . ref DorlandsDict eight 000109722 bacterial toxins ref Toxinosis is pathogenesis caused by the bacterial toxin alone, not necessarily involving bacterial infection e.g. when the bacteria have died, but have already produced toxin, which becomes ingested It can be caused by Staphylococcus aureus toxins. ref name Microbiology348 Page 348 in cite book author Fisher, Bruce Harvey, Richard P. Champe, Pamela C. title Lippincott s Illustrated Reviews Microbiology Lippincott s Illustrated Reviews Series publisher Lippincott Williams & Wilkins location Hagerstown, MD year pages isbn 0 7817 8215 5 oclc doi ref One primary classification used is to distinguish between exotoxin and endotoxin . Exotoxins are generated by the bacteria and actively secreted. Endotoxins are part of the bacteria itself. Usually, endotoxin is part of the bacterial outer membrane , and it is not released until the bacteria is killed by the immune system . The body s response to endotoxin can involve severe inflammation . In general, the inflammation process is usually considered beneficial to the infected host, but if the reaction is severe enough, it can lead to sepsis . Some bacterial toxins can be used in the treatment of tumor s. ref name urlDefinition of bacterial toxin NCI Dictionary of Cancer Terms cite web url http www.cancer.gov Templates db alpha.aspx?CdrID 45610 title Definition of bacterial toxin NCI Dictionary of Cancer Terms format work accessdate 2008 12 13 ref See also colbegin Alpha toxin Anthrax toxin Botulinum toxin Cholera toxin Cyanotoxin Diphtheria toxin Exotoxin Food microbiology Microbiology Microbial toxins Neurotoxin Pertussis toxin Shiga toxin Shiga like toxin Toxin Toxin antitoxin system colend References Reflist Toxins Category Bacterial toxins sv Bakterietoxin ar ... more details
Image Bacterial lawn 01.jpg thumb right A bacterial lawn used in antibiotic resistance testing. Bacterial lawn is a term used by microbiologist s to describe the appearance of bacteria l Colony biology colonies when all the individual colonies on a petri dish agar plate merge together to form a field or mat of bacteria. Bacterial lawns find use in screens for antibiotic resistance and bacteriophage titering. Bacterial lawns often of Serratia marcescens are also used extensively when as an assay method when using bacteriophage as tracers in studies of groundwater flow. Although occasionally used as a synonym for biofilm , the term primarily applies to the simple, clonal, unstructured mats of organisms that typically only form on laboratory growth media. Biofilms&mdash the aggregated form of microorganism s most commonly found in nature &mdash are generally more complex and diverse and marked by larger quantities of extracellular structural matrix relative to the cellular Biomass ecology biomass . References cite book author Madigan, Michael Martinko, John editors title Brock Biology of Microorganisms edition 11th ed. publisher Prentice Hall year 2005 isbn 0 13 144329 1 DEFAULTSORT Bacterial Lawn Category Bacteria Category Microbiology terms de Bakterienrasen ... more details
Bacterial oxidation BIOX is a biohydrometallurgy biohydrometallurgical process developed for pre cyanidation treatment of refractory gold ores or concentrates. The bacterial culture is a mixed culture of Thiobacillus ferrooxidans , Thiobacillus thiooxidans and Leptospirillum ferrooxidans . The bacterial oxidation process comprises contacting refractory sulfide ROM ore or concentrate with a strain of the bacterial culture for a suitable treatment period under an optimum operating environment. The bacteria oxidise the sulfide minerals, thus liberating the occluded gold for subsequent recovery via cyanidation . Under controlled continuous plant conditions, the number of bacterial cells and their activity is optimised to attain the highest rate of sulfide oxidation . The bacteria require a very acidic environment pH 1.0 to 4.0 , a temperature of between 30 and 45 C, and a steady supply of oxygen and carbon dioxide for optimum growth and activity. The unusual operating conditions for the bacteria are not favourable for the growth of most other microbes , thus eliminating the need for sterility during the bacterial oxidation process. Because organic substances are toxic to the bacteria, they are non pathogenic and incapable of causing disease. The bacteria employed in the process do not, therefore, pose a health risk to humans or any animals. The bacterial oxidation of iron sulfide minerals produces iron III sulfate and sulfuric acid , and in the case of arsenopyrite , arsenic acid is also produced. The arsenic is removed from the liquor by coprecipitation with the iron and sulfate in a two stage neutralisation process. This produces a solid neutralisation precipitate containing largely calcium sulfate , basic iron III arsenate and iron III hydroxide . The iron III arsenate is sufficiently insoluble and stable to allow the neutralisation product to be safely disposed of on a slimes ... used in the milling, flotation or bacterial oxidation circuits. See also Economic geology Geomicrobiology ... more details
image Bacterial growth.png 250px right thumb Growth is shown as L log numbers where numbers is the number of colony forming units per ml, versus T time. Bacterial growth is the Asexual reproduction division ..., local doubling of the bacterial population occurs. Both daughter cells from the division do not necessarily survive. However, if the number surviving exceeds unity on average, the bacterial population undergoes exponential growth . The measurement of an exponential bacterial growth curve in batch ... bacterial enumeration cell counting by direct and individual microscopic, flow cytometry ref name pmid6341358 ... year 1990 volume 56 issue 6 pages 1875 1881 title Modeling of the Bacterial Growth Curve author ... Bacterial growth en.svg 250px right thumb Bacterial growth curve In population ecology autecological studies, bacterial growth in batch culture can be modeled with four different phases lag phase A , exponential or log phase B , stationary phase C , and death phase D . IN the book black the bacterial ... bacteria are maturing and not yet able to divide. During the lag phase of the bacterial growth ... value as the rate of bacterial growth is equal to the rate of bacterial death. At death phase ... aspects of bacterial growth which may differ from the growth of macrofauna. It emphasizes clonality ... bacterial growth is studied, but it is only one of many. It is ideally spatially unstructured and temporally structured. The bacterial culture is incubated in a closed vessel with a single batch of medium. In some experimental regimes, some of the bacterial culture is periodically removed and added ... and temporally unstructured, in a steady state defined by the rates of nutrient supply and bacterial ... rate of the bacteria is known. Related devices include turbidostat s and auxostat s. Bacterial ... ecology synecological , true to nature situation in which more than one bacterial species is present ... for bacterial growth. Spatially structured environments such as biofilms or agar surfaces ... more details
Taxobox color lightgrey name Erwinia tracheiphila image Bacterial wilt.JPG regnum Bacterium Bacteria phylum Proteobacteria classis Gamma Proteobacteria ordo Enterobacteriales familia Enterobacteriaceae genus Erwinia species Erwinia tracheiphila Bacterial wilt is a cucurbitaceae cucurbit disease caused by the pathogen Erwinia tracheiphila , a Gram negative bacterium in the family Enterobacteriaceae . Cucumber and muskmelon plants and the greens at Oakmont are most susceptible, but squash, pumpkins, and gourds may also become infected. Watermelons are immune to the disease. Disease transmission E. tracheiphila is spread between plants by two species of insect vectors, Striped cucumber beetle s Acalymma Vittatum and spotted cucumber beetle s Diabrotica undecimpunctata . The beetles acquire E. tracheiphila by feeding on infected plants, then carry the bacteria in their digestive tracts. The disease may be spread to susceptible plants through feeding wounds, by way of infected mouthparts or frass . The bacteria is capable of overwintering in the gut of its insect vectors. Symptoms and diagnosis Bacterial wilt is a disease of the vascular tissue . When a plant is infected, E. tracheiphila multiplies within the xylem , eventually causing mechanical blockage of the water transport system. The first sign of infection, which appears about five days after acquisition, is the wilting of individual leaves on a single stem. However, the disease will soon spread down the runner and then infect the whole plant, causing it to shrivel and die. There is a diagnostic test for bacterial wilt that can be done in the field. The presence of the E. tracheiphila causes the sap to become a milky color ... and insecticide sprays. References http www.apsnet.org online feature pumpkin bacterial.html Bacterial ... Bacterial Wilt Factsheet by Cornell University Plant Disease Clinic Yao, C., Geoffrey ... of Bacterial Wilt of Cucurbits. Entomological Society of America 89 510 514. Category Enterobacteria ... more details
Bacterial gliding is a process whereby a bacterium can move under its own power. This process does not involve the use of flagella , which is a more common means of motility in bacteria. ref name McBride Cite doi 10.1146 annurev.micro.55.1.49 ref For many bacteria, the mechanism of gliding is unknown or only partially known, and it seems likely that in fact different bacteria use distinct mechanisms to achieve what is currently referred to as gliding. Gliding is prominent in cyanobacteria , myxobacteria and the cytophaga flavobacteria . The only understood mechanism involves using type IV pili in such bacteria as Pseudomonas aeruginosa and Myxococcus xanthus . In addition, for Myxococcus xanthus A motility one of the two motility mechanisms this bacterium has two other mechanisms have been proposed, one involving ejection of a polysaccharide slime from nozzles at either end of the body ref Citation last1 Merali first1 Zeeya title Bacteria use slime jets to get around newspaper New Scientist date 3 April 2006 url http www.newscientist.com article dn8933 bacteria use slime jets to get around.html accessdate 17 January 2010 ref and the other using focal adhesion complexes distributed along the cell body. ref name Science1 Cite doi 10.1126 science.1137223 ref References references DEFAULTSORT Bacterial Gliding Category Bacteria ar es Deslizamiento bacterial ru uk ... more details
Bacterial cellulose is an organic compound with the formula chem carbon C 6 hydrogen H 10 oxygen O 5 ... Sarcina ventriculi and Agro bacterium. Bacterial, or microbial, cellulose has different properties .... While bacterial cellulose is produced in nature, many methods are currently being investigated ... science . Historically, bacterial cellulose has been limited to the manufacture of Nata de coco , an indigenous food of South East Asia. ref name Iguchi M. Iguchi,S. Yamanaka, A. Budhiono, Bacterial ..., issue 2 ref With advances in the ability to synthesize and characterize bacterial cellulose, the material ... that more intensive studies on bacterial cellulose were conducted. Several decades after the initial ... xylinoides . In 1931, Tarr and Hibbert published the first detailed study of the formation of bacterial ... al. proved the necessity of glucose and oxygen in the synthesis of bacterial cellulose. Soon after ... and ATP. ref Steinbuhel A. Steinbuhel, Bacterial Cellulose. Biopolymers. Weinheim Wiley VCH, 2001. Print. ref In 1949, the microfibrillar structure of bacterial cellulose was characterized by Muhlethaler ... bacterial cellulose studies have led to new uses and applications for the material. Some studies ... structure of cellulose Bacterial Sources Cellulose can be found in many microorganisms like fungi ... advances in bacterial cellulose production, Biotechnol. Bioprocess Eng. 10 2005 1 8 ref The most .... ref name Bielecki S. Bielecki, A. Krystynowicz, M. Turkiewicz, H. Kalinowska Bacterial Cellulose ... Synthesis.jpg left 420px thumb Biochemical Pathway for Cellulose Synthesis The synthesis of bacterial ... with around 50 efficiency. ref name Iannino ref Fermentation Production File Bacterial Strains that Produce Cellulose.jpg 410px thumb Bacterial Strains that Produce Cellulose Cellulose production ... of lignosulfonate on crystal structure and productivity of bacterial cellulose in a static .... Shoda, Statistical optimization of culture conditions for bacterial cellulose production using Box ... more details
Infobox disease Name Bacterial vaginosis Image Vaginose G15.jpg Caption Micrograph of bacterial vaginosis ... eMedicineTopic MeshID D016585 Bacterial vaginosis BV or less commonly vaginal bacteriosis ref cite ... Them Bacterial Vaginosis or Vaginal Bacteriosis publisher Medscape accessdate 10 October 2009 ref ... www.cdc.gov std bv stdfact bacterial vaginosis.htm title Bacterial Vaginosis CDC Fact Sheet author ... National guideline for the management of bacterial vaginosis 2006 work Clinical Effectieness Group ... occurring bacterial flora and is often confused with yeast infection candidiasis , or infection with Trichomonas ... vaginalis , Mobiluncus , Bacteroides , and Mycoplasma . A change in normal bacterial flora ... Bradshaw2006 cite journal author Bradshaw CS title High recurrence rates of bacterial vaginosis over ... It is possible for sexually inactive persons to get infected with bacterial vaginosis. Rather, BV ... for getting this infection. Bacterial vaginosis may sometimes affect women after menopause . A 2005 ... predictor of bacterial vaginosis in pregnant women. ref cite journal author Verstraelen ... predictor of bacterial vaginosis in early pregnancy journal BMC Infect. Dis. volume 5 pages 55 year ... showed a link between psychosocial stress and bacterial vaginosis independent of other risk ... title The association of psychosocial stress and bacterial vaginosis in a longitudinal cohort journal ... 01131 2 ref Clarify date May 2010 Diagnosis To make a diagnosis of bacterial vaginosis, a swab from ... a positive whiff test and is suggestive of bacterial vaginosis. Loss of acidity . To control bacterial growth, the vagina is normally slightly acidic with a pH of 3.8 4.2. A swab of the discharge ... of bacterial vaginosis. The presence of clue cell s on wet mount. Similar to the whiff ... date December 2011 Differential diagnosis for bacterial vaginosis includes the following Citation ... Reliability of diagnosing bacterial vaginosis is improved by a standardized method of gram stain interpretation ... more details
, chills, and fatigue common in bacterial and fungal pneumonia. The neutrophils, bacteria, and fluid ... for bacterial pneumonia and ventilation oxygen supplement as supportive therapy. The antibiotic choice ... and other drugs. Prevention Prevention of bacterial pneumonia is by vaccination against Hib vaccine ... Day Respiratory pathology Pneumonia DEFAULTSORT Bacterial Pneumonia Category Pneumonia Category Bacterial diseases Link GA es ca Pneum nia bacteriana es Neumon a bacteriana ja ... more details
Orphan date April 2011 The pattern formation formation of patterns in the Bacterial growth growth of bacterial colony bacterial colonies has extensively been studied experimentally. Resulting morphologies appear to depend on the growth conditions. They include well known morphologies such as dense branched morphology DBM or diffusion limited aggregation DLA , but much complex patterns and temporal behaviour can be found. A large number of studies on pattern formation in bacterial colonies have been performed in Bacillus subtilis and in Proteus mirabilis . Mathematical modeling of colony growth can reproduce the observed morphologies and the effect of environmental changes. Employed models include Reaction diffusion system Cellular automata Colonies of Bacillus subtilis Colonies of Bacillus subtilis on a Petri dish can grow under controlled conditions. By varying agar concentration which permits the control of the hardness of the medium , and the nutrient concentration, the response of the colony to external stresses can be studied. The different morphologies appear in the following growth conditions High nutrients level, hard medium Eden like growth http www.phys.chuo u.ac.jp labs matusita images BacteriaFig B eden.htm High nutrients level, semi soft hardness of medium Periodical growth forming concentric rings http www.phys.chuo u.ac.jp labs matusita images BacteriaFig B concentric.htm High nutrients level, soft medium homogeneous, disk like growth http www.phys.chuo u.ac.jp labs matusita images BacteriaFig B fisher.htm Low nutrients level, hard medium DLA growth http www.phys.chuo u.ac.jp labs matusita images BacteriaFig B dla.htm Low nutrients level, soft medium DBM growth http www.phys.chuo u.ac.jp labs matusita images BacteriaFig B dbm.htm A complete morphological diagram can then be drawn by varying growth conditions. http www.phys.chuo u.ac.jp labs matusita images ... images of patterns in bacterial growth can be found in http www.genomenewsnetwork.org articles 05 ... more details
Bacterial Flora is a community of bacteria that exists on or in the body, and possesses a unique ecological ... s Microbiology. 8th. New York McGraw Hill, 2011. 731 37. Print. ref Bacterial flora encompasses ... relationship that both entities benefit from. ref The Normal Bacterial Flora of Humans. Todar ... the Human Genome Project designed to help understand the health implications of human bacterial .... New York McGraw Hill, 2011. 731 37. Print. ref Biologist believe that bacterial flora may play some .... As a result, the upper and lower respiratory tract does not have a normal bacterial flora. ref Willey ... Hill, 2011. 731 37. Print. ref Mucus is produced by goblet cells which trap bacterial and are moved .... 8th. New York McGraw Hill, 2011. 731 37. Print. ref Unusual bacterial flora in the respiratory ..., and Maria Appleman. Unusual respiratory bacterial flora in cystic fibrosis microbiologic and clinical ... The bacterial flora found in the lungs of patients with cystic fibrosis often contains antibiotic ..., Paul, and Maria Appleman. Unusual respiratory bacterial flora in cystic fibrosis microbiologic ... . ref Gut Flora The bacterial flora of the human gut encompasses a wide variety of microorganisms ... of different enterotypes that have an inconspicuous impact on human health. ref Zimmer, Carl. Bacterial ... bacteria. ref Zimmer, Carl. Bacterial Ecosystems Divide People Into 3 Groups, Scientists Say ... cannot survive. The main bacterial inhabitants of the stomach include Streptococcus , Staphylococcus ... McGraw Hill, 2011. 731 37. Print. ref The bacterial flora of the small intestine aid in a wide range of intestinal functions. The bacterial flora provide regulatory signals that enable the development .... ref Quigley, Eamonn, and Rodrigo Quera. Small Intestinal Bacterial Overgrowth Roles of Antibiotics ... gidiv.ucsf.edu course old Quigley.pdf . ref In addition the large intestine contains the largest bacterial ... type vary in women depending on the stage of the menstrual cycle. ref The Normal Bacterial Flora ... more details
Bacterial display or bacteria display or bacterial surface display is a protein engineering technique used for in vitro protein evolution. Libraries of polypeptides displayed on the surface of bacteria can be screened using flow cytometry or iterative selection procedures biopanning . Competing methods for protein evolution in vitro are phage display , ribosome display , yeast display , and mRNA display . References cite journal doi 10.1073 pnas.90.22.10444 last1 Francisco first1 J. A. last2 Campbell first2 R. last3 Iverson first3 B. L. last4 Georgiou first4 G. title Production and Fluorescence Activated Cell Sorting of Escherichia coli Expressing a Functional Antibody Fragment on the External Surface journal Proc. Nat. Acad. Sci. U.S.A. year 1993 volume 90 pages 10444 48 cite journal doi 10.1038 nbt0197 29 last1 Georgiou first1 G. pmid 9035102 last2 Stathopoulos first2 C last3 Daugherty first3 PS last4 Nayak first4 AR last5 Iverson first5 BL last6 Curtiss R first6 3rd title Display of heterologous proteins on the surface of microorganisms From the screening of combinatorial libraries to live recombinant vaccines journal Nat. Biotech. year 1997 volume 15 issue 1 pages 29 34 Protein methods Category Biochemistry methods biochem stub ar ... more details
Bacterial microcompartments are widespread bacteria l organelle s that are made of a protein shell that surrounds and encloses various enzymes. ref name Bobik2007 cite journal author Bobik, T. A. title Bacterial Microcompartments year 2007 journal Microbe volume 2 pages 25 31 url http www.asm.org ASM files ccLibraryFiles Filename 000000002765 znw00107000025.pdf format PDF publisher Am Soc Microbiol ref These compartments are typically about 100 200 nanometre s across and made of interlocking proteins. ref cite journal author Yeates TO, Kerfeld CA, Heinhorst S, Cannon GC, Shively JM title Protein based organelles in bacteria carboxysomes and related microcompartments journal Nat. Rev. Microbiol. volume 6 pages 681 691 year 2008 month August pmid 18679172 doi 10.1038 nrmicro1913 issue 9 ref They do not contain lipid s since they are not surrounded by a Cell membrane membrane . Protein enclosed compartments are also found in eukaryotes, such as the mysterious vault organelle vault complex . ref name Sutter cite journal author Sutter M, Boehringer D, Gutmann S, et al. title Structural basis of enzyme encapsulation into a bacterial nanocompartment journal Nat. Struct. Mol. Biol. volume 15 pages 939 947 year 2008 month August pmid 18758469 doi 10.1038 nsmb.1473 issue 9 ref Protein families forming the microcompartment shell The shells of diverse microcompartments are composed of members of three protein families the BMC domain protein family, the inconsistently named CsoS4 CcmL EutN ... shells that have been studied, the major constituents are proteins belonging to the Bacterial ... like proteins and thought to be a group of bacterial antibiotics, since they showed bacteriostatic ... journal author Parsons JB, Dinesh SD, Deery E, et al. title Biochemical and structural insights into bacterial ... Mysterious Bacterial Microcompartments Revealed By Biochemists http www.nature.com embor journal ... and cell structure Category Cell anatomy Category Organelles bacteria stub simple Bacterial ... more details
Bacterial conjugation is the transfer of genetic material between bacterial cells by direct cell to cell contact or by a bridge like connection between two cells. ref name Baron cite book author Holmes RK, Jobling MG title Genetics Conjugation. in Baron s Medical Microbiology Baron S et al. , eds. edition 4th publisher Univ of Texas Medical Branch year 1996 url http www.ncbi.nlm.nih.gov books bv.fcgi?highlight conjugation&rid mmed.section.468 473 isbn 0 9631172 1 1 ref Discovered in 1946 by Joshua Lederberg and Edward Tatum , ref cite journal author Lederberg J, Tatum EL title Gene recombination ... 3520 2 url http www.ncbi.nlm.nih.gov books bv.fcgi?highlight Bacterial conjugation&rid iga.section.1304 ref Bacterial conjugation is often regarded as the bacteria l equivalent of sexual reproduction ... in Bacterial Conjugation title Plasmids Current Research and Future Trends publisher Caister ... ref Such beneficial plasmids may be considered bacterial endosymbionts . Other elements, however, may be viewed as bacterial parasitism parasites and conjugation as a mechanism evolved by them to allow for their spread. Mechanism image Conjugation.svg right thumb 350px Schematic drawing of bacterial ... that can integrate itself into the bacterial chromosome by Homologous recombination In bacteria .... In common laboratory strains of Escherichia coli E. coli the transfer of the entire bacterial chromosome ... Bacterial conjugative plasmids mobilize DNA transfer between bacteria and yeast journal Nature volume ... VL title Conjugation between bacterial and mammalian cells journal Nat. Genet. volume 29 issue 4 pages ... by bacterial conjugation journal Nucleic Acids Res. volume 33 issue 16 pages e139 year 2005 pmid ... Microbiology Bacterial 20Conjugation index.html Bacterial conjugation a Flash animation Genetic recombination DEFAULTSORT Bacterial Conjugation Category Molecular biology Category Biotechnology ... bakterii pt Conjuga o biologia ru simple Bacterial conjugation sv Konjugation ... more details
The cell capsule is a very large structure of some prokaryotic cell s, such as bacterial cells. It is a layer that lies outside the cell wall of bacterium bacteria . It is a well organized layer, not easily washed off, and it can be the cause of various diseases. Composition It usually consists of polysaccharides , ref DorlandsDict two 000016823 bacterial capsule ref but can be composed of other materials e.g., polypeptide in B. anthracis . Because most capsules are water soluble Citation needed reason please give a reliable source for this assertion. If they were water soluble, the capsules would dissolve when washed with water, and they would be easily stained with a basic or acidic dye, such as Manival s stain or Congo red, which can be used to stain the cell and the background. date October 2011 , they are difficult to stain using standard stains because most stains do not adhere to the capsule. For examination under the microscope, the bacteria and their background are stained darker than the capsule, which doesn t stain. When viewed, bacterial cells as well as the surface they are on, are stained dark, while the capsule remains pale or colorless and appears as a ring around the cell. Function The capsule is considered a virulence factor because it enhances the ability of bacteria to cause disease i.e. prevents phagocytosis . The capsule is slippery and fragile, so when a phagocyte tries to phagocytose the bacteria, it can slip away. A capsule specific antibody may be required for phagocytosis to occur. Capsules also contain water which protects bacteria against desiccation . They also exclude bacterial viruses and most hydrophobic toxic materials such as detergents . There are 14 different capsule types, which each impart their own specific antigenicity. Immunity to one ..., Uchida K, Tsujimoto S, Yamaguchi K title Role of bacterial capsule in local and systemic inflammatory ... type b and S. pneumoniae . See also Bacterial cell structure Quellung reaction , a method to visualize ... more details
...311.1283C ref Eukaryote s are colored red, archaea green and bacteria blue. The bacterial phyla ... year 1735 ref each bacterial strain has to be assigned to a species binary nomenclature , which is a lower ... is disused at present in bacterial taxonomy . ref name code tag ref Past editions of Brock Biology ... Brock ref name TOBA ref name LPSN phyla Lpsn classifphyla.html Bacterial phyla ref Many major clades ... the various Bacterial phyla represent a large hard polytomy a simultaneous multiple speciation event ... of bacteria Bacterial taxonomy Traditionally, phylogeny were inferred and taxonomy established ... order Branching order of bacterial phyla Woese, 1987 File 10 small subunit.gif thumb Atomic ... of bacterial evolution revolution journal scientist volume 4 issue 10 date 22 year May month ... tree and bacterial megaclassification journal International journal of systematic and evolutionary ... List of Bacterial Names with Standing in Nomenclature a folder available on the Internet journal ... bacterial lineage journal International journal of systematic and evolutionary microbiology volume ... Impact of culture independent studies on the emerging phylogenetic view of bacterial diversity journal ... Novel division level bacterial diversity in a Yellowstone hot spring journal Journal of bacteriology ... of the major bacterial lineages predates sponges Obvious but someone may not get it Other .... Nov., a Gram negative, aerobic, chemoheterotrophic bacterium of a novel bacterial phylum, Armatimonadetes ... microorganism of a novel bacterial class, Chthonomonadetes classis. Nov., of the newly described ... bacterial phylum, Caldiserica phyl. Nov., originally called the candidate phylum OP5, and description ...., sp. Nov, a transparent exopolymer producing marine bacterium, and the description of a novel bacterial ... and OP3. Overview of phyla for the origin of each phyla name Bacterial taxonomy Phyla endings Currently ... of bacterial phyla, it was proposed that the suffix bacteria be used for phyla, ref Murray ... more details
Bacterial nanowires also known as microbial nanowires are electrically conductive appendages produced by a number of bacteria most notably from but not exclusive to the Geobacter and Shewanella genera. ref name Reguera G. Reguera et al., Nature 435, 1098 2005 ref ref name Gorby2006 Y. A. Gorby et al., Proceedings of the National Academy of Sciences of the United States of America 103, 11358 2006 . ref Conductive nanowires have also been confirmed in the oxygenic cyanobacterium Synechocystis PCC6803 and a thermophilic, methanogenic coculture consisting of Pelotomaculum thermopropionicum and Methanothermobacter thermoautotrophicus . ref name Gorby2006 Physiology Nanowires are modified pili, which are used to establish connections to terminal electron acceptors. Species of the genus Geobacter use nanowires to transfer electrons to extracellular electrical acceptors such as Fe III oxides . ref Reguera et al. 2005. Extracellular electron transfer via microbial nanowires. Nature 435 1098 1101 . ref This function was discovered through the examination of mutants, whose pili could attach to the iron, but would not reduce it. ref Reguera et al. 2005. Extracellular electron transfer via microbial nanowires. Nature 435 1098 1101 . ref Additionally, Nanowires can facilitate long range electron transfer across thick biofilm layers ref Reguera et al. 2006. Biofilm and nanowire produciton leads to increased current in Geobacter sulfurreducens fuel cells. Appl. Environ. Microbiol. 72 7345 8. ref . By connecting to other cells above them, pili allow bacteria located in anoxic conditions to still use oxygen as their terminal electron acceptor. For example, organisms in the genus Shewanella have been observed to form electrically conductive pili in response to electron acceptor limitation. ref Gorby et al. 2006. Electrically conductive bacterial nanowires produced by Shewanella oneidensis strain MR 1 and other microorganisms. Proc Natl Acad Sci USA 103 30 11358 63. ref History Empty section ... more details
Adhesins are cell surface components or appendages of bacteria that facilitate adhesion bacterial adhesion or adherence compliance and concordance adherence to other cells or to inanimate surfaces. Adhesins are a type of virulence factor . Adherence is an essential step in bacteria l pathogenesis or infection , required for colonizing a new host biology host . ref name Coutte 2003 cite journal author Coutte L, Alonso S, Reveneau N, Willery E, Quatannens B, Locht C, Jacob Dubuisson F title Role of adhesin release for mucosal colonization by a bacterial pathogen journal J Exp Med volume 197 issue 6 pages 735 42 year 2003 url http www.jem.org cgi content full 197 6 735 pmid 12629063 doi 10.1084 jem.20021153 ref For example, nontypeable Haemophilus influenzae expresses the adhesins Hia, Hap, Oap and a hemagglutinating pili. Most fimbria bacteriology fimbria e of gram negative bacteria function as adhesins, but in many cases it is a minor subunit protein at the tip of the fimbriae that is the actual adhesin. In gram positive bacteria, a protein or polysaccharide surface layer serves as the specific adhesin. To effectively achieve adherence to host surfaces, many bacteria produce multiple adherence factors called adhesins . Dr family Infobox protein family Symbol Adhesin Dr Name Adhesin Dr image PDB 1ut1 EBI.jpg width caption drae adhesin from escherichia coli Pfam PF04619 Pfam clan CL0204 InterPro IPR006713 SMART PROSITE MEROPS SCOP TCDB OPM family OPM protein CAZy CDD The Dr family of adhesins Molecular binding bind to the Dr Human blood group systems blood group antigen component of decay accelerating factor DAF . ref name mgc These protein s contain both fimbriated and afimbriated adherence structures and mediate adherence of Uropathogenic Escherichia coli uropathogenic Escherichia .... Can also be used to bind to other bacteria. External links MeshName Bacterial Adhesin DEFAULTSORT Bacterial Adhesin Category Bacteriology Category Virulence factors Cell biology stub de Adh sine ... more details
Pfam box Symbol Bac rhodopsin Name Bacteriorhodopsin like protein image 1m0l opm.gif width caption Bacteriorhodopsin trimer Pfam PF01036 InterPro IPR001425 SMART PROSITE PDOC00291 SCOP 2brd TCDB 3.E.1 OPM family 6 OPM protein 1vgo PDB PDB3 1e12 A 29 271 PDB3 1vgo B 19 253 PDB3 1s52 B 22 244 PDB3 1r84 A 22 245 PDB3 1ap9 22 238 PDB3 1kme B 22 244 PDB3 1r2n A 22 255 PDB3 1pxs A 22 255 PDB3 1p8u A 22 255 PDB3 1bac 22 238 PDB3 1brr A 22 253 PDB3 1c3w A 22 244 PDB3 1q5i A 22 255 PDB3 1jv6 A 22 255 PDB3 1ucq A 22 255 PDB3 1iw6 A 22 255 PDB3 1x0s A 22 255 PDB3 1tn5 A 22 255 PDB3 1py6 A 22 255 PDB3 1cwq B 22 253 PDB3 1p8h A 22 255 PDB3 1tn0 B 22 255 PDB3 1s54 A 22 244 PDB3 1o0a A 22 255 PDB3 1s53 A 22 244 PDB3 1pxr A 22 255 PDB3 1f50 A 22 244 PDB3 1bm1 22 240 PDB3 1q5j B 22 255 PDB3 1jv7 A 22 255 PDB3 1e0p B 22 245 PDB3 1s51 B 22 244 PDB3 1dze A 22 255 PDB3 1qkp A 22 255 PDB3 2brd 22 241 PDB3 1m0m A 22 255 PDB3 1x0k 1 22 255 PDB3 1iw9 A 22 255 PDB3 1c8s A 22 235 PDB3 1c8r A 22 244 PDB3 1mgy A 22 255 PDB3 1fbb A 22 255 PDB3 1qko A 22 255 PDB3 1ixf A 22 255 PDB3 1m0k A 22 255 PDB3 1brx 22 241 PDB3 1fbk A 22 255 PDB3 1m0l A 22 255 PDB3 1kg9 A 22 244 PDB3 1s8l A 22 255 PDB3 1bct 176 244 PDB3 1vjm A 22 255 PDB3 1qhj A 22 245 PDB3 1kg8 A 22 244 PDB3 2at9 22 240 PDB3 1bad 22 238 PDB3 1bhb 22 83 PDB3 1kgb A 22 244 PDB3 1bha 22 83 PDB3 1xji A 22 255 PDB3 1p8i A 22 255 PDB3 1l0m A 22 231 PDB3 1qm8 A 22 255 PDB3 1x0i 1 22 255 PDB3 1s8j A 22 255 PDB3 1f4z A 22 244 PDB3 1jgj A 4 217 PDB3 1gue A 4 231 PDB3 1gu8 A 4 231 PDB3 1h2s A 4 225 PDB3 1xio A 4 233 PDB3 1sr1 4 214 Bacterial rhodopsins are a protein family family of bacterial opsin s. They are Retinylidene protein retinal binding proteins that provide light dependent ion transport and sensory functions to a family of Halobacteria halophilic ref name PUB00005349 cite journal author Oesterhelt D, Tittor J title Two pumps, one principle light driven ion transport in halobacteria journal Trends Biochem. Sci. volume 14 issue 2 pages 57 61 ... more details
Biological classification Bacterial taxonomy is the Linnaean taxonomy taxonomy , i.e. the Taxonomic rank rank based classification, of bacteria . In the scientific classification established by Carl von Linn , ref name linnaeus cite book last Linnaeus first Carl authorlink Carl Linnaeus title Systemae Naturae, sive regna tria naturae, systematics proposita per classes, ordines, genera & species. year ... different levels of evolutionary relatedness see Bacterial phyla and Timeline of evolution Metabolism ... stain number of lipid bylayers or bilayer composition see Bacterial cellular morphologies , Bacterial ... Erwin F. Smith accepted 33 valid different names of bacterial genera and over 150 invalid names, ref .... Subdivisions main Bacterial phyla In 1987 Carl Woese divided the Eubacteria into 11 divisions based ... journal author Holland L. title Woese,Carl in the forefront of bacterial evolution revolution journal ... Phyla endings see also Bacterial phyla Phyla are not covered by the Bacteriological code ... disregarded by the molecular phylogeny community e.g . ref name pmid19946133 Bacterial taxonomy ... Hierarchical classification of Prokaryotes ref For bacterial phyla it was proposed that the suffix ... recognised. ref name hier Names after people main List of bacterial genera named after personal names main List of bacterial genera named after mythological figures Many sup number? sup species are named ... places main List of bacterial genera named after geographical names main List of bacterial genera ... plaque or Nostoc Star jelly , no bacterial species has a vernacular trivial common name in English ... names List of Bacteria genera List of bacterial orders List of sequenced prokaryotic genomes ... grade Cryptic species complex Synonym taxonomy Taxonomy LPSN , list of accepted bacterial and archaeal names Cyanobacteria , a phyla of common bacteria but poor classified at present Bacterial phyla , a complicated classification References reflist 2 DEFAULTSORT Bacterial Taxonomy Category Bacteria ... more details
Unreferenced auto yes date December 2009 External bacterial infection is a condition found in fish. Symptoms There are a great deal of possible symptom s associated with this disorder. There may be spots on the body which appear red or orange. Watch for red streaks on the surface on the body. Dropsy bloating is also a sign of a bacterial disorder. False fungal infection s look like fungus but is actually a bacterial infection known as Columnaris . These symptoms may include a white or gray film on the body. Treatment There are a number of effective treatments for many stains of bacterial infection s. Three of the most common are tetracycline , penicillin and naladixic acid. Salt baths are another effective treatment. Information Bacterial infections are often difficult to Diagnosis diagnose due to the many different types. Orange or red streaks on the body is usually the only fool proof method for the determination of a bacterial infection. References reflist fish disease topics DEFAULTSORT External Bacterial Infection Fish Category Fish diseases Fishkeeping stub ... more details
Infobox Disease Name Gram positive bacterial infection Image Caption DiseasesDB ICD10 ICD9 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D016908 Gram positive bacterial infection refers to a disease caused by Gram positive bacteria . It is very important to recognize that this class is defined morphologically by the absence of a bacterial outer membrane , and not histologically by a purple appearance when stained , though the two usually coincide. For example, infections by Mycobacteria are included in this class, though tuberculosis requires a special Ziehl Neelsen stain stain, and leprosy usually cannot even be cultured. Medical conditions Gram positive bacterial diseases Gram positive actinobacteria diseases Category Bacterial diseases Medicine stub ... more details
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