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Encyclopedia results for Purple sulfur bacteria

Purple sulfur bacteria





Encyclopedia results for Purple sulfur bacteria

  1. Purple sulfur bacteria

    Taxobox name Purple sulfur bacteria image image width 240px image caption Purple sulfur bacteria regnum Bacteria phylum Proteobacteria classis Gammaproteobacteria ordo Chromatiales subdivision ranks Families subdivision Chromatiaceae br Ectothiorhodospiraceae br Granulosicoccaceae br Halothiobacillus Halothiobacillaceae The purple sulfur bacteria are a group of Proteobacteria capable of photosynthesis , collectively referred to as purple bacteria . They are Anaerobic organism anaerobic or microaerophilic , and are often found in hot spring s or stagnant water . Unlike Plantae plants , algae , and cyanobacteria , they do not use water as their reducing agent , and so do not produce oxygen . Instead they use hydrogen sulfide , which is Redox oxidized to produce granules of elemental sulfur . This in turn may be oxidized to form sulfuric acid . The purple sulfur bacteria are divided into two ..., anaerobic bacteria associated with pelagic copepods , Aquatic Microbial Ecology Vol. 12, 105 113. ref The most favorable lakes for the development of purple sulfur bacteria are meromictic permanently ... bottom waters, and here purple sulfur bacteria can form dense cell masses, called blooms, usually in association with green phototrophic bacteria. See also Sulfur reducing bacteria Green Lake New ... sulfur granules, and show differences in the structure of their internal membranes. They make ... is also included in the Chromatiales, in its own family, but it is not photosynthetic. Purple sulfur bacteria are generally found in illuminated anoxic zones of lakes and other aquatic habitats where hydrogen sulfide accumulates and also in sulfur springs where geochemically or biologically produced hydrogen sulfide can trigger the formation of blooms of purple sulfur bacteria. Anoxic conditions are required for photosynthesis these bacteria cannot thrive in oxygenated environments. ref ... Category Microbiology ca Bacteri porpra del sofre de Chromatiales es Bacteria p rpura del ...   more details



  1. Sulfur bacteria

    Sulfur bacteria may refer to Green sulfur bacteria Purple sulfur bacteria Sulfate reducing bacteria Sulfur reducing bacteria disambig ...   more details



  1. Purple bacteria

    e.g. Rhodoferax Purple sulfur bacteria are included among the Gammaproteobacteria gamma subgroup , and make up the order purple sulfur bacteria Chromatiales . The similarity between the photosynthetic ...Purple bacteria or purple photosynthetic bacteria are proteobacteria that are phototroph ic, that is, capable ..., tubes, or sheets, increasing the available surface area. Like most other photosynthetic bacteria, purple bacteria do not produce oxygen , because the reducing agent electron donor involved in photosynthesis is not water. In some, called purple sulfur bacteria , it is either sulfide or elemental sulfur . The others, called purple non sulfur bacteria aka PNSB , typically use hydrogen although some ... show the purple bacteria make up a variety of separate groups, each closer relatives of non photosynthetic proteobacteria than one another. History Purple bacteria were the first bacteria discovered to photosynthesize without having an oxygen byproduct. Instead, their byproduct is sulfur. This was proved by first establishing the bacteria s reactions to different concentrations of oxygen. What was found was that the bacteria moved quickly away from even the slightest trace of oxygen. Then a dish of the bacteria was taken, and a light was focused on one part of the dish leaving the rest dark. As the bacteria cannot survive without light, all the bacteria moved into the circle of light, becoming very crowded. If the bacteria s byproduct was oxygen, the distances between individuals would become larger and larger as more oxygen was produced. But because of the bacteria s behavior in the focused light, it was concluded that the bacteria s photosynthetic byproduct could not be oxygen. Taxonomy Purple non sulfur bacteria are found among the Alphaproteobacteria alpha and Betaproteobacteria ... s, which give them colours ranging between purple, red, brown, and orange. Metabolism Photosynthesis ... bacteria Category Microbiology bg ca Bacteri porpra cs Purpurov bakterie de ...   more details



  1. Sulfur-reducing bacteria

    Sulfur reducing bacteria SRB get their energy by redox reaction reducing elemental sulfur to hydrogen sulfide . They couple this reaction with the oxidation of acetate , succinate or other organic compounds . Several types of bacteria and many non methanogen ic archaea can reduce sulfur. Some bacteria ndash such as Proteus bacterium Proteus , Campylobacter , Pseudomonas and Salmonella ndash have the ability to reduce sulfur, but can also use oxygen and other terminal electron acceptors. Others, such as Desulfuromonas , use only sulfur. These bacteria can be used in industrial processes to generate hydrogen sulfide for the precipitation of metals. Some bacteria can use both elemental sulfur and sulfate as electron acceptors. See sulfate reducing bacteria . References cite book last1 Brock first1 Thomas D. authorlink1 Thomas D. Brichael T. last3 Martinko first3 John M. last4 Parker first4 Jack title Biology of Microorganisms publisher Prentice Hall date 1994 location New Jersey pages 749 752 isbn 1 4058 5345 X bacteria stub Category Phototrophic bacteria Category Hydrogen biology Category Microbiology cs Sirn bakterie de Schwefeloxidierende Bakterien es Bacteria reductora de azufre fi Rikkibakteerit uk ...   more details



  1. Green sulfur bacteria

    GD last9 Mucci first9 A pmc 2572968 postscript None ref See also Anoxic event Purple sulfur bacteria ...Taxobox name Green sulfur bacteria image Green d winogradsky.jpg image caption Green sulfur bacteria in a Winogradsky column colour lightgrey domain Bacteria phylum Chlorobi subdivision Class Chlorobea small Cavalier Smith 2002 small br   Order Chlorobiales small Gibbons and Murray 1978 small br       Family Chlorobiaceae small Copeland 1956 small br           Ancalochloris small Gorlenko and Lebedeva 1971 small br           Chlorobaculum small Imhoff 2003 small br           Chlorobium small Nadson 1906 emend. Imhoff 2003 small br           Chloroherpeton small Gibson et al. 1985 small br           Clathrochloris small Witt et al. 1989 small br           Pelodictyon ... br The green sulfur bacteria are a family biology family of obligately anaerobic organism anaerobic photoautotrophic bacteria . Most closely related to the distant Bacteroidetes , they are accordingly ... sulfur bacteria are non motile except Chloroherpeton thalassium , which may bacterial gliding glide ... pnas.0503674102 pmc 1166624 ref Green sulfur bacteria appear in Lake Matano , Indonesia, at a depth ..., 2005 References Reflist Bacteria classification DEFAULTSORT Green Sulfur Bacteria Category Phototrophic bacteria Category Bergey s volume 4 bg ca Bacteri verd del sofre cs Chlorobi de Gr ne Schwefelbakterien es Chlorobi fr Chlorobi gl Bacteria verde do xofre ko id Chlorobi lt aliosios sierabakter s ja no Gr nnsvovelbakterier pt Chlorobi simple Green sulfur bacteria ... is mediated by the type I reaction centre and Fenna Matthews Olson complex . Elemental sulfur ... cyanobacteria , Prochlorococcus and Synechococcus ref name bryantfrigaard A species of green sulfur bacteria has been found living near a black smoker off the coast of Mexico at a depth of 2,500 meters ...   more details



  1. Sulfur

    photosynthetic green sulfur bacteria and purple sulfur bacteria and some chemolithotroph s use elemental ...About the chemical element pp move indef Infobox sulfur Sulfur IPAc en icon s l f r respell SUL ... for temperature and pressure normal conditions , sulfur atoms form cyclic octatomic molecules with chemical formula S sub 8 sub . Elemental sulfur is a bright yellow crystal line solid when at room temperature. Chemically, sulfur can react as either an oxidant or reducing agent . It oxidizes most metal ... element to easily produce stable exceptions to the octet rule . In nature , sulfur can be found as the pure element and as sulfide and sulfate minerals. Elemental sulfur crystals are commonly ... form, sulfur was known in ancient times, mentioned for its uses in ancient Greece , ancient China China and ancient Egypt Egypt . Sulfur fumes were used as fumigants, and sulfur containing medicinal mixtures were used as balms and antiparasitics. Sulfur is referenced in the Bible as brimstone ... Sulfur was considered important enough to receive its own alchemical symbol . It was needed to make ..., Antoine Lavoisier helped convince the scientific community that sulfur was a basic element, rather than a compound. Elemental sulfur was once extracted from salt dome s where it sometimes occurs ... all elemental sulfur is produced as a byproduct of removing sulfur containing contaminants from natural ... s. Many sulfur compounds are odiferous, and the smell of odorized natural gas, skunk scent, grapefruit, and garlic is due to sulfur compounds. Hydrogen sulfide produced by living organisms imparts the characteristic odor to rotting eggs and other biological processes. Sulfur is an essential element for all life, and is widely used in biochemical processes. In metabolic reactions, sulfur compounds serve as both fuels and respiratory oxygen replacing materials for simple organisms. Sulfur in organic ... for sulfur. Sulfur is an important part of many enzymes and in antioxidant molecules like glutathione ...   more details



  1. Bacteria

      Cyanobacteria , Green sulfur bacteria , Chloroflexi phylum Chloroflexi , or Purple bacteria ... cyanobacteria , green sulfur bacteria and some purple bacteria , but also many chemolithotrophic species, such as nitrifying or sulfur oxidising bacteria. ref cite journal author Hellingwerf K, Crielaard ... complexes may even form lipid enclosed structures called chlorosome s in green sulfur bacteria . ref ... Taxobox color lightgrey name Bacteria fossil range Long fossil range 4200 0 Archean or earlier Recent ... coli bacilli domain Bacteria subdivision ranks Phyla ref cite web url http www.ncbi.nlm.nih.gov Taxonomy Browser wwwtax.cgi?mode Undef&id 2&lvl 3&lin f&keep 1&srchmode 1&unlock title Bacteria ... br Deferribacteraceae Deferribacteres br Dictyoglomi br Thermodesulfobacteria br Thermotogae Bacteria ... microorganism s. Typically a few micrometre s in length, bacteria have a wide range of shapes, ranging from sphere s to rods and spirals. Bacteria are present in most habitat s on Earth , growing ... 5 10 sup 30 sup bacteria on Earth, ref name pmid9618454 cite journal author Whitman WB, Coleman ... and animals. ref C.Michael Hogan. 2010. http www.eoearth.org article Bacteria?topic 49480 Bacteria ..., Washington DC ref Bacteria are vital in recycling nutrients, with many steps in nutrient ... vents and cold seeps , bacteria provide the nutrients needed to sustain life by converting dissolved compounds such as hydrogen sulphide and methane . Most bacteria have not been characterised, and only about half of the phylum phyla of bacteria have species that can be microbiological culture ... 14527284 doi 10.1146 annurev.micro.57.030502.090759 ref The study of bacteria is known as bacteriology ... flora as there are human cells in the body, with large numbers of bacteria on the skin and as gut ... ref The vast majority of the bacteria in the body are rendered harmless by the protective effects of the immune system , and a few are probiotic beneficial . However, a few species of bacteria are pathogenic ...   more details



  1. Sulfur cycle

    requires lower temperatures because the sulfur reducing bacteria can only live at relatively low ...The sulfur cycle is the collection of processes by which sulfur moves to and from minerals including ... many minerals. Biogeochemical cycles are also important for life because sulfur is an essential element , being a constituent of many protein s and cofactor s. ref name Brock Steps of the sulfur cycle are Mineralization of Organosulfur compounds organic sulfur into inorganic forms, such as hydrogen sulfide H sub 2 sub S , elemental sulfur, as well as sulfide minerals . Oxidation of hydrogen sulfide, sulfide , and elemental sulfur S to sulfate SO sub 4 sub sup 2 sup . Reduction of sulfate ... , a key intermediate in the sulfur cycle. These are often termed as follows Assimilative sulfate reduction see also sulfur assimilation in which sulfate SO sub 4 sub sup 2 sup is reduced by plant s, fungi and various prokaryote s. The oxidation states of sulfur are 6 in sulfate and 2 in R SH. Desulfurization in which organic molecules containing sulfur can be desulfurized, producing hydrogen .... Oxidation of hydrogen sulfide produces elemental sulfur S sub 8 sub , oxidation state 0. This reaction occurs in the photosynthesis photosynthetic green and purple sulfur bacteria and some chemolithotroph s. Often the elemental sulfur is stored as polysulfide s. oxidation of elemental sulfur by sulfur oxidizers produces sulfate. Dissimilative sulfur reduction in which elemental sulfur can be reduced to hydrogen sulfide. Dissimilative sulfate reduction in which sulfate reducing bacteria sulfate reducers generate hydrogen sulfide from sulfate. Sulfur sources and sinks Sulfur is found in oxidation state s ranging from 6 in Sulfate SO sub 4 sub to 2 in sulfide s. Thus elemental sulfur ... FeS sub 2 sub comprised the original pool of sulfur on earth. Owing to the sulfur cycle, the amount of mobile sulfur has been continuously increasing through Volcanism volcanic activity as well as weathering ...   more details



  1. Sulfur metabolism

    , thionucleoside s in tRNA s, and thiamine . Bacteria Sulfur metabolic pathways of pathogenic bacteria ...Sulfur metabolism is vital for all living organism s as it is a constituent of a number of essential organic molecules like cysteine , methionine , coenzyme A , and iron sulfur cluster s. These compounds ... of electrons and acyl group s. Sulfur, therefore, is an essential component of all living cells. The importance of sulfur is well represented by the sulfhydryl thiol functional group, lying at the centre ..., as well as maintaining the redox balance of living cells. Additionally, sulfur containing molecules function as messengers in intracellular and intra species communication. Sulfur is also a constituent ... the sulfur metabolic pathways has been greatly facilitated by the emerging information drawn from ... 0 ref Mycobacterium Sulfur metabolism in mycobacteria plays a role in the pathogenesis of the insidious ... Caister Academic Press isbn 978 1 904455 40 0 ref Corynebacterium An external supply of sulfur containing ..., their biosynthesis is of great industrial interest. Therefore, the metabolism of sulfur in Corynebacterium glutamicum has been studied. Besides the pathways to obtain and utilize sulfur from the environment, the reactions leading to and from the sulfur containing amino acids cysteine and methionine ..., the regulation of sulfur metabolism has been analyzed on the transcriptional as well as on the enzymatic ... gingival tissues periodontal pocket . The generation of volatile sulfur containing compounds from ..., and the evolutionary separation of the archaea from bacteria that catalyze similar reactions. Sulfur metabolism is the subject of much research in archaea, including both sulfur oxidation and reduction and the hydrogenase s frequently associated with sulfur reduction. ref name BlumP cite ... Press year 2008 isbn 978 1 904455 27 1 ref Fungi Fungi metabolize inorganic sulfate to make sulfur ... pathway is shut off by the sulfur metabolite repression system as sulfate assimilation is not required ...   more details



  1. Sulfur water

    Sulfur water is a condition where the running water contains a high amount of hydrogen sulfide gas that escapes into the air when the plumbing line is opened, giving a distinct rotten egg smell. Cause The condition is not dangerous, but indicates a high level of sulfate red xcxcx ucing bacteria in the water supply. This may be due to the use of well water, poorly treated city water, or water heater contamination. Treatment how to date September 2011 Treatment for sulfur water is turning up the temperature setting on the water heater to over 140 F and running it for several hours, letting others know you have scalding water running in your pipes, and then flushing the water heater clean. The heat is supposed to kill the bacteria. One should also get a good water filter to remove all mineral and chemical impurities at the tap. References unsourced date September 2011 http ohioline.osu.edu aex fact 0319.html Hydrogen sulfide in drinking water watersupply stub Category Water pollution Category Water chemistry ar ...   more details



  1. Lime sulfur

    In horticulture , lime sulfur British English British spelling lime sulphur is a mixture of calcium polysulfide s formed by reacting calcium hydroxide with sulfur , used in pest control . It can be prepared by boiling calcium hydroxide and sulfur together with a small amount of surfactant . It is normally ... odour. A New York State Agricultural Experiment Station recipe for the concentrate is 80 lb. sulfur ... sulfur and quicklime this makes the highest proportion of pentasulfide. If hydrated lime is used, an increase by 1 3 or more to 48 lb. or more might be used with the 80 lb. of sulfur. If the quicklime ... small amounts of hot water to compensate for evaporation. Use Lime sulfur is sold as a spray for deciduous trees to control fungus Pathogenic species fungi , bacteria and insect s living or dormant on the surface of the bark . Lime sulfur burns leaves so it is not as useful for evergreen plants. Bonsai enthusiasts use undiluted lime sulfur to bleach, sterilise, and preserve deadwood on bonsai trees ... usage, lime sulfur is painted directly onto the exposed deadwood, and is often colored with a small amount of dark paint to make it look more natural. Without paint pigments, the lime sulfur solution ... Company Inc. year 1987 pages 146 147 isbn 0 8069 6763 3 ref Because the lime sulfur does not contact .... Diluted solutions of lime sulfur between 1 16 and 1 32 are also used as a dip for pets to help ... parasites . Undiluted lime sulfur is corrosive to the skin and can cause serious injury . Safety Lime sulfur reacts with strong acid s including Gastric acid stomach acid to produce highly toxic hydrogen sulfide rotten egg gas and indeed usually has a distinct rotten egg odour to it. Lime sulfur is not extremely flammable but combustion produces highly irritating sulfur dioxide gas. Safety goggles and glove s should be worn while handling lime sulfur. Lime sulfur solutions are strongly alkali ne ... cause blindness if splashed in the eyes. History Lime sulfur is believed to be the earliest synthetic ...   more details



  1. Book:Sulfur

    saved book title Sulfur subtitle An overview cover image Sulfur.jpg cover color Sulfur An overview Overview Sulfur Isotopes Isotopes of sulfur Miscellany Allotropes of sulfur Sulfur assimilation Sulfur cycle Category Wikipedia books on chemical elements Category Sulfur Wikipedia books on elements ...   more details



  1. Sulfur dioxide

    organisms and in sulfur oxidizing bacteria as well. The role of sulfur dioxide in mammalian biology ...Chembox Verifiedfields changed verifiedrevid 477313199 ImageFile Sulfur dioxide 2D.svg ImageFile Ref chemboximage correct ?? ImageSize 160 ImageName Skeletal formula sulfur dioxide with assorted dimensions ImageFile1 Sulfur dioxide 3D vdW.png ImageFile1 Ref chemboximage correct ?? ImageSize1 140 ImageName1 Spacefill model of sulfur dioxide IUPACName Sulfur dioxide OtherNames Sulfurous anhydride br Sulfur IV oxide Section1 Chembox Identifiers CASNo 7446 09 5 CASNo Ref cascite correct CAS PubChem 1119 ... D05961 KEGG Ref keggcite correct kegg MeSHName Sulfur dioxide ChEBI Ref ebicite correct EBI ChEBI 18422 ... F 0 NFPA R 0 LD50 3000 ppm 30 min inhaled, mouse Section8 Chembox Related Function sulfur oxide s OtherFunctn Sulfur monoxide br Sulfur trioxide OtherCpds Ozone br Selenium dioxide br Sulfurous acid br Tellurium dioxide Sulfur dioxide also sulphur dioxide is the chemical compound with the formula chem sulfur S oxygen O 2 . It is a poisonous gas that is released by volcano es and in various industrial processes. Since coal and petroleum often contain sulfur compounds, their combustion generates sulfur dioxide unless the sulfur compounds are removed before burning the fuel. Further oxidation ... sulfuric acid H sub 2 sub SO sub 4 sub , and thus acid rain . ref Holleman&Wiberg ref Sulfur dioxide ... counting electron counting formalism, the sulfur atom has an oxidation state of 4 and a formal charge ... bonding. Image Sulfur dioxide resonance 2D.png left 350px thumb Three resonance chemistry resonance structures of sulfur dioxide Although sulfur and oxygen both have six valence electron s, the molecular ... 2 sub 143.1  pm than in sulfur monoxide , SO 148.1  pm , whereas the O O bonds are longer in ozone ... to conclude that the S O bonds in sulfur dioxide have a bond order of at least 2, unlike the O ... ref Production Combustion routes Sulfur dioxide is the product of the burning of sulfur or of burning ...   more details



  1. Purple

    Sample of Pansy Purple Page 131 Plate 54 Color Sample L8 ref In nature Bacteria Purple bacteria are proteobacteria ... white title Purple pic File Color icon purple.svg symbolism royal family royalty , imperialism , nobility ... m 100 y 0 k 50 h 300 s 100 v 50 source Web colors HTML color names HTML Purple is a range of hues of color ... color green for light or yellow for pigment . In color theory , a purple is defined as any Spectral ... red and blue. In art , purple is the color on the HSV color space color wheel between magenta and violet and its tint s and shade s. This color, electric purple, is shown below. ref Graham, Lanier ... see Rood color wheel 1879 p. 93 ref In human color psychology, purple is also associated with royalty and nobility stemming from classical antiquity when Tyrian purple was only affordable to the elites . Etymology and definitions The word purple comes from the Old English word purpul which ... purple dye manufactured in classical antiquity from a mucus secreted by the Murex brandaris spiny ...?term purple ref ref http oxforddictionaries.com view entry m en gb0674820 m en gb0674820 purple , Oxford Dictionaries ref The first recorded use of the word purple in English was in the year A.D. 975. ref Oxford English Dictionary , second edition ref Purple versus violet Main Violet color infobox ... color approximately 380 420  nm , of a shorter wavelength than blue, while purple is a combination ..., purple was not present on Newton s color wheel which went directly from violet to red , though it is on modern ones, between red and violet. There is no such thing as the wavelength of purple ... spectral colors red and violet is known as the line of purples or purple boundary it represents ... process is near the center of the line of purples, but most people associate the term purple with a somewhat bluer tone, such as is displayed by the color electric purple a color also directly on the line of purples , shown below. Some common confusion exists concerning the color name s purple and violet ...   more details



  1. Coliform bacteria

    distinguish Coliiformes File E coli at 10000x, original.jpg thumb Escherichia coli Coliform bacteria are a commonly used bacteria l indicator bacteria indicator of sanitary quality of foods and water. They are defined as rod shaped Gram negative non endospore spore forming bacteria which can ferment lactose with the production of acid and gas when incubated at 35 37 C. ref American Public Health Association APHA , Standard Methods for the Examination of Water and Wastewater 19th ed. , APHA, Washington, DC 1995 . ref Coliforms can be found in the aquatic environment, in soil and on vegetation they are universally present in large numbers in the faeces of warm blooded animals. While coliforms are themselves not normally causes of serious illness, they are easy to culture and their presence is used to indicate that other pathogenic organisms of faecal origin may be present. Faecal pathogens include bacteria, viruses, or protozoa and many multicellular parasites. Typical genera include ref The Microbiology of Drinking Water 2002 Part 1 Water Quality and Public Health Department of the Environment ref Citrobacter , Enterobacter Hafnia bacterium Hafnia Klebsiella Serratia Fecal coliform Escherichia Escherichia coli E. coli , a rod shaped member of the coliform group, can be distinguished from most other coliforms by its ability to ferment lactose at 44 C in the fecal coliform test, and by its growth and color reaction on certain types of culture media. When cultured on an EMB plate, a positive result for E. coli is metallic green colonies on a dark purple media. Unlike the general coliform group, E. coli are almost exclusively of fecal origin and their presence is thus an effective ... also Bacteriological water analysis Coliform index Fecal coliform Indicator bacteria References Reflist Category Bacteria Category Foodborne illnesses Category Water quality indicators Category Microbiology bacteria stub cs Koliformn bakterie da Tyktarmsbakterie de Coliforme Bakterien es Coliforme ...   more details



  1. Magnetotactic bacteria

    , S. Kloser, and H. Fossing title Vertical migration in the sediment dwelling sulfur bacteria ...Magnetotactic bacteria or MTB are a polyphyletic group of bacteria discovered by Richard P. Blakemore ... this task, these bacteria have organelle s called magnetosome s that contain magnetic crystals ... of animals, the bacteria contain fixed magnets that force the bacteria into alignment even dead ... 6. ref Introduction The first description of magnetotactic bacteria appeared in 1963 in a publication ... a group of bacteria that evidently oriented themselves in a unique direction. He realised these microorganisms ... bacteria . The first peer reviewed article on magnetotactic bacteria appeared in a 1975 article ... Institution , who had similarly observed bacteria capable of orienting themselves in a certain direction ... author Blakemore, Richard title Magnetotactic Bacteria year 1975 journal Science volume 190 pages 377 379 pmid 170679 issue 4212 bibcode 1975Sci...190..377B ref These bacteria have been ... volume 47 issue 10 pages 775 780 ref The sensitivity of magnetotactic bacteria to the Earth s magnetic field arises from the fact these bacteria precipitate chains of crystals of magnetic minerals within their cells to date, all magnetotactic bacteria are reported to precipitate either magnetite .... title The identification and biogeochemical interpretation of fossil magnetotactic bacteria journal ... living lodestones.shtml Living Lodestones Magnetotactic bacteria , Strange Horizons, 2001 ref Biology ... CatFaber Magnetite producing magnetotactic bacteria are usually found in an Anoxic waters oxic anoxic ... . Some types of magnetotactic bacteria can produce magnetite even in Hypoxia environmental anaerobic ... Bazylinski, Dennis title Controlled biomineralization of magnetic minerals by magnetotactic bacteria ... not too different from that found in magnetotactic bacteria has been also found in higher organisms ... Magnetotactic bacteria produce their magnetic particles in chains. The magnetic dipole of the cell ...   more details



  1. Enteric bacteria

    Enteric bacteria are bacteria of the intestine s, and may refer to Gut flora , which is always present and usually harmless Pathogenic bacteria of bacterial gastroenteritis dab ...   more details



  1. Atypical bacteria

    unreferenced date July 2010 Atypical bacteria are bacteria which remain colourless after gram staining . See also Gram negative bacteria Category Bacteriology microbiology stub ...   more details



  1. Flowers of sulfur

    Mergeto Sulfur date December 2009 Unreferenced date December 2009 Flowers of sulfur or sublimed sulfur are yellow flakes of sulfur . It has been used in traditional medicine traditional and alternative medicine alternative medicine for humans and animals, as well as in alchemy and sulfuring fruit before Drying food drying . Category Sulfur ...   more details



  1. Sulfur fluoride

    Sulfur fluoride may refer to any of the following sulfur fluorides Sulfur hexafluoride , SF sub 6 sub Disulfur decafluoride , S sub 2 sub F sub 10 sub Sulfur tetrafluoride , SF sub 4 sub disamb simple Sulfur fluoride ...   more details



  1. Phototrophic bacteria

    Unreferenced date September 2008 Phototrophic bacteria or photolithotrophic bacteria are lithotrophic bacteria that use photosynthesis as their source of energy. Gallery gallery Image Chlorofl.jpg Chloroflexus aurantiacus Image Halobacteria.jpg Cluster cells of Halobacterium gallery Photolithotrophic bacteria Category Phototrophic bacteria ja ...   more details



  1. Bacteria (disambiguation)

    wiktionarypar bacteria The bacteria are a major group of Prokaryote prokaryotic living organisms. Bacteria may also refer to Bacteria malware or Rabbit Programs, a type of malicious software Bacteria, a fictional country in The Great Dictator List of Asterix characters Bacteria Bacteria , the wife of List of Asterix characters Unhygienix Unhygienix in the Asterix comics Bacteriidae , a family of South American stick insect s disambig ...   more details



  1. Sulfur sticks

    Unreferenced auto yes date December 2009 Orphan date December 2009 Sulfur sticks are used in industrial ammonia refrigeration systems to detect minor ammonia leaks. A sulfur stick is made from a wick which contains particles of sulfur. elemental sulfur or sulfur compound? Particle should be linked to atom or molecule, as appropriate. The sulfur stick is lit and smolders, something like the taper that is used to light firework s. The color of the sulfur smoke is used to find the leak. When there is no ammonia the smoke is colorless but when ammonia is present the combined sulfur and ammonia vapors produce a white smoke. Sulfur sticks have been used to find ammonia leaks for at least 100 years. Category Heating, ventilating, and air conditioning DEFAULTSORT Sulfur Sticks Material stub ...   more details



  1. Putrefying bacteria

    Unreferenced date March 2007 Putrefying bacteria is the term used to describe bacteria involved in putrefaction of living matter. Putrefying bacteria turn nitrogen proteins into ammonium compounds. Nitrifying bacteria turn the ammonium compounds into nitrites and then into nitrates for plant absorption. See also Decomposition Anaerobic organism DEFAULTSORT Putrefying Bacteria Category Alchemical processes Category Microbiology bacteria stub ...   more details



  1. Siderophilic bacteria

    unreferenced date June 2008 Siderophilic bacteria are bacteria that require or are facilitated by free iron . They may include Vibrio vulnificus , Listeria monocytogenes , Yersinia enterocolica , Salmonella enterica serotype Typhymurium , Klebsiella pneumoniae and Escherichia coli . One possible symptom of haemochromatosis is susceptibility to infections from these species. Certain non bacterial microorganisms such as Rhizopus arrhizus and Mucor may also be siderophilic. See also Iron bacteria Iron in microbiology Category Bacteria Category Microbiology bacteria stub fi Siderofiilit ...   more details




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