Taxobox domain Eukaryota regnum Chromalveolata phylum Heterokont ophyta classis Oomycete s ordo Peronosporales familia Albuginaceae genus Albugo species A. bliti binomial Albugo bliti binomial authority Biv. Kuntze, 1891 Albugo bliti , White Rust, is a type of oomycete pathogen of genus Albugo that affects the tissues of plants. In particular, this white rust is found on Amaranth, beets, and lambs quarters. Many discussions of this white rust treat it as a type of fungus . See also Plant pathology Category Water moulds Category Plant pathogens and diseases watermould stub plant disease stub ... more details
Taxobox image image width 200px image caption regnum Chromalveolata phylum Heterokont ophyta classis Oomycete s ordo Peronosporales familia Peronosporaceae genus Pseudoperonospora genus authority subdivision ranks Species subdivision See text Pseudoperonospora is a genus of Oomycete water moulds which includes several species known for causing downy mildew infections on plants. Species include Pseudoperonospora cannabina causes downy mildew on Cannabis hemp Pseudoperonospora cubensis causes downy mildew on Cucurbitaceae cucurbits Pseudoperonospora humuli causes downy mildew on Humulus hops watermould stub Category Water moulds it Pseudoperonospora ... more details
Taxobox image IJssla wit Iceberg with Bremia lactucae .jpg image caption Iceberg lettuce infected with Bremia lactucae regnum Chromalveolata phylum Heterokont ophyta classis Water mold Oomycetes ordo Peronosporales familia Peronosporaceae genus Bremia subdivision ranks Genera subdivision Bremia graminicola Bremia lactucae dablink For the fort in Wales , see Bremia fort Bremia is a genus of Oomycete water mould s in the family Peronosporaceae . watermould stub Category Water moulds it Bremia ... more details
Automatic taxobox oldest fossil Upper Carboniferous youngest fossil Triassic subdivision species list C. cornifer C. williamsonii Strullu Derrien et al ., 2011 Combresomyces is a genus of hypha l, parasitic oomycete known from the fossil record it infects organisms such as the seed fern Lyginopteris ref name Strullu Derrien2010 cite doi 10.1098 rspb.2010.1603 ref . References reflist Category Water moulds Category Carboniferous life Category Triassic life Category Permian life Category Prehistoric life watermould stub Triassic stub ... more details
Unreferenced stub type Chromalveolata auto yes date December 2009 Taxobox image Hyaloperonospora brassicae.jpg image caption Hyaloperonospora brassicae on cabbage domain Eukaryota regnum Chromalveolata phylum Heterokont ophyta classis Oomycete s ordo Peronosporales familia Peronosporaceae genus Hyaloperonospora genus authority Hyaloperonospora is a genus of downy mildew s family Peronosporaceae . Species include Hyaloperonospora arabidopsidis G um. G ker, Voglmayr, Riethm., Weiss & Oberw., 2003 Hyaloperonospora brassicae G um. G ker, Voglmayr, Riethm., Weiss & Oberw., 2003 Hyaloperonospora parasitica Pers. Constant., 2002 Commons category Hyaloperonospora Category Water moulds Category Plant pathogens and diseases Plant disease stub es Hyaloperonospora ... more details
Taxobox regnum Chromalveolata phylum Heterokontophyta classis Oomycetes ordo Albuginales familia Albuginaceae genus Albugo species A. occidentalis binomial Albugo occidentalis binomial authority G.W. Wilson, 1907 synonyms Cystopus occidentalis small G.W. Wilson Sacc. & Trotter, 1912 small Albugo occidentalis , Spinach White Rust, is an oomycete plant pathogen, although some discussions still treat it as a Fungus fungal organism. External links http www.speciesfungorum.org Names Names.asp Index Fungorum http nt.ars grin.gov fungaldatabases USDA ARS Fungal Database References references DEFAULTSORT Albugo Occidentalis Category Plant pathogens and diseases Category Water moulds watermould stub plant disease stub ... more details
italic title Taxobox name Pseudoperonospora cannabina domain Eukaryota regnum Chromalveolata phylum Heterokont ophyta classis Oomycete s ordo Peronosporales familia Peronosporaceae genus Pseudoperonospora species P. cannabina binomial Pseudoperonospora cannabina binomial authority G.H. Otth Curzi, 1926 synonyms Peronoplasmopara cannabina small G.H. Otth Peglion small br Peronospora cannabina small G.H. Otth, 1869 small Pseudoperonospora cannabina is a plant pathogen. External links http www.speciesfungorum.org Names Names.asp Index Fungorum http nt.ars grin.gov fungaldatabases USDA ARS Fungal Database References references DEFAULTSORT Pseudoperonospora Cannabina Category Plant pathogens and diseases Category Water moulds watermould stub plant disease stub ... more details
Taxobox virus group iv familia Narnaviridae subdivision ranks Genera subdivision Narnavirus br Mitovirus The Narnaviridae are a family of positive single stranded RNA viruses. Uniquely among viruses they lack a protein coat. Virology The genome is unipartate and between 2.3 and 3.5 kilobases in length. It encodes a single gene the RNA dependent RNA polymerase. This protein is associated with the genome in the cytoplasm of the host. ref name Solorzano2000 Solorzano A, Rodr guez Cousi o N, Esteban R, Fujimura T 2000 Persistent yeast single stranded RNA viruses exist in vivo as genomic RNA.RNA polymerase complexes in 1 1 stoichiometry. J Biol Chem 275 34 26428 26435 ref They infect fungus fungi and oomycete s. ref name Cai2011 Cai G, Myers K, Fry WE, Hillman BI 2011 A member of the virus family Narnaviridae from the plant pathogenic oomycete Phytophthora infestans . Arch Virol ref These viruses are commonly found infecting yeast. Taxonomy Two genera have been recognised to date. The Mitoviruses infect the mitochondria of fungi while the Narnaviruses remain within the cytoplasm of the host. Genus Narnavirus type species Saccharomyces cerevisiae 20SRNA narnavirus Genus Mitovirus type species Cryphonectria parasitica mitovirus 1 NB631 Note that although the Narnaviridae are now treated with other ssRNA viruses, they were previously given their own group . References references External links http www.expasy.org viralzone all by species 46.html Viralzone Narnaviridae Category RNA viruses Virus stub ar ca Narnav rid es Narnaviridae zh ... more details
Taxobox regnum Chromalveolata phylum Heterokontophyta classis Oomycetes ordo Albuginales familia Albuginaceae genus Albugo species A. ipomoeae panduratae binomial Albugo ipomoeae panduratae binomial authority Schwein. Swingle, 1892 synonyms Aecidium ipomoeae small Th m., 1875 small br Aecidium ipomoeae panduratae small Schwein., 1822 small br Cystopus ipomoeae panduratae small Schwein. Stev. ? & Swingle, 1889 small br Puccinia ipomoeae panduratae small Schwein. P. Syd. & Syd., 1904 small br Trochodium ipomoeae small Th m. Syd. & P. Syd., 1920 small br Uromyces ipomoeae small Th m. Berk., 1882 small Albugo ipomoeae panduratae , White Rust, is an oomycete plant pathogen, although many discussions still treat it as a Fungus fungal organism. External links http www.speciesfungorum.org Names Names.asp Index Fungorum http nt.ars grin.gov fungaldatabases USDA ARS Fungal Database References Reflist DEFAULTSORT Albugo Ipomoeae Panduratae Category Plant pathogens and diseases Category Water moulds watermould stub plant disease stub ... more details
italic title Taxobox name Pseudoperonospora humuli domain Eukaryota regnum Chromalveolata phylum Heterokont ophyta classis Oomycete s ordo Peronosporales familia Peronosporaceae genus Pseudoperonospora species P. humuli binomial Pseudoperonospora humuli binomial authority Miyabe & Takah. G.W. Wilson, 1914 synonyms Peronoplasmopara humuli small Miyabe & Takah., 1905 small br Peronospora humuli small Miyabe & Takah. Skalick , 1966 small br Plasmopara humuli small Miyabe & Takah. Sacc., 1912 small Pseudoperonospora humuli is a plant pathogen that causes downy mildew on hops and hemp . External links http www.speciesfungorum.org Names Names.asp Index Fungorum http nt.ars grin.gov fungaldatabases USDA ARS Fungal Database References references DEFAULTSORT Pseudoperonospora Humuli Category Plant pathogens and diseases Category Water moulds watermould stub plant disease stub ... more details
The Pathogen Host biology Host Interaction database PHI base contains expertly curated molecular and biological information on genes proven to affect the outcome of pathogen host interactions. The database was created and is maintained by researchers at Rothamsted Experimental Station Rothamsted Research and external collaborators. PHI base http www.phi base.org was developed to utilise effectively the growing number of verified genes that mediate an organism s ability to cause disease and or to trigger host responses. The web accessible database catalogues experimentally verified pathogenicity, virulence and effector genes from fungal and Oomycete pathogens which infect animal, plant and fungal hosts. PHI base is the first on line resource devoted to the identification and presentation of information on fungal and Oomycete pathogenicity genes and their host interactions. As such, PHI base is a strong valuable resource for the discovery of candidate targets in medically and agronomically important fungal and Oomycete pathogens for intervention with synthetic chemistries and natural products fungicide s . Each entry in PHI base is curated by domain experts and supported by strong experimental evidence gene disruption experiments as well as literature references in which the experiments are described. Each gene in PHI base is presented with its nucleotide and deduced amino acid sequence as well as a detailed structured description of the predicted protein s function during the host infection process. To facilitate data interoperability, genes are annotated using controlled vocabularies Gene Ontology terms, Enzyme Commission number EC Numbers , etc. , and links to other external data sources for example, National Center for Biotechnology Information NCBI taxonomy, EMBL and UniProt are provided. References Winnenburg, R., Urban, M., Beacham, A., Baldwin, T.K., Holland, S., Lindeberg, M., Hansen, H., Rawlings, C., Hammond Kosack, K. and K hler, J. 2008. PHI base update a ... more details
Taxobox regnum Chromalveolata phylum Heterokont ophyta classis Oomycetes ordo Pythiales familia Pythiaceae genus Pythium species P. oligandrum binomial Pythium oligandrum binomial authority Dreschler Pythium oligandrum is an Oomycete . It is a parasite of many fungi and other oomycetes including Botrytis , Fusarium and Phytophthora . It has been licensed as a biocontrol agent in the form of an oospore soil treatment, which reduces pathogen load and concomitant plant disease. P. oligandrum can grow within the roots of certain plants, including tomato and sugar beet. Production of auxin like substances stimulate plant growth. Defense responses can be induced in the plant, which primes the plant from further infection by pathogenic fungi, oomycetes or bacteria. References Brozova, J . Exploitation of the mycoparasitic fungus Pythium oligandrum in plant protection. Plant Protection Science . 38 29 35 2002 Picard,K., Tirilly,Y. and Benhamou,N . 2000 Cytological effects of cellulases in the parasitism of Phytophthora parasitica by Pythium oligandrum . Appl.Environ.Microbiol., 66 , 4305 4314. Le Floch,G., Rey,P., Benizri,E., Benhamou,N. and Tirilly,Y. 2003 Impact of auxin compounds produced by the antagonistic fungus Pythium oligandrum or the minor pathogen Pythium group F on plant growth. Plant Soil, 257 , 459 470. Category Pythium oligandrum ... more details
italic title Taxobox image Albugo tragopogonis 1.JPG image caption A sunflower leaf with white rust infection caused by Albugo tragopogonis in the field. name Albugo tragopogonis regnum Chromalveolata phylum Heterokontophyta classis Oomycetes ordo Albuginales familia Albuginaceae genus Albugo species Albugo tragopogonis binomial Albugo tragopogonis binomial authority DC. Gray, 1821 synonyms Cystopus cubicus small de Bary, 1863 small br Cystopus tragopogonis small DC. J. Schr t., 1886 small br Uredo tragopogonis small DC., 1805 small Albugo tragopogonis , Sunflower White Rust, is an oomycete plant pathogen, although some sources still regard it as a Fungus fungal organism. Albugo tragopogonis is the old name for Pustula tragopogonis http www.indexfungorum.org Names SynSpecies.asp?RecordID 346454 , the causal agent of white blister disease on goatsbeard Tragopogon spp. . Currently, also sunflower white blister rust is attributed to this pathogen, but this has not yet been confirmed by molecular phylogenetic studies. See also Plant pathology External links http www.speciesfungorum.org Names Names.asp Index Fungorum http nt.ars grin.gov fungaldatabases USDA ARS Fungal Database References references DEFAULTSORT Albugo Tragopogonis Category Plant pathogens and diseases Category Water moulds watermould stub plant disease stub ... more details
Wiktionary mold Mold or mould may refer to In natural science Mold or mould, a kind of fungus Slime mold or mould, a kind of protist Water mold or mould, or oomycete , a kind of protist Leaf mold or mould, composted soil or earth, particularly loose soil suitable for planting In places Mold, Flintshire , a town in Wales Mold, Washington , a town in Washington state , USA In people Arthur Mold , fast bowler for Lancashire in the 1890s Betty Mould Iddrisu , Ghanaian lawyer and politician Bob Mould , musician with alternative rock bands H sker D and Sugar Brooks K. Mould , American music publisher Billy Mould , former English footballer Eric Moulds , former American footballer George Moulds , English cricketer Air Commodore Gordon Moulds , former Commander of Kandahar Airfield, Afghanistan Jacob Wrey Mould , English born architect, illustrator, linguist and musician James Mould , former Canadian politician Jeremy Mould , Australian astronomer John Stuart Mould , former Australian military person Johnny Mold , America snowmobile racer Jon Mould , Welsh racing cyclist Nathan Moulds , former Australian footballer Philip Mould , English art dealer In other uses Molding process or moulding, used to make an object of complementary shape from a pliable material Mold cooking implement or mould, a container used in various techniques of food preparation to shape the finished dish Mold album Mold album , a 1998 album by Praxis 18240 Mould , an asteroid See also Molding disambiguation disambiguation geo surname de Mold nl Mold pl Mold ... more details
Unreferenced stub auto yes date December 2009 A gametangium plural gametangia is an Organ anatomy organ or cell biology cell in which gamete s are produced that is found in many multicellular protist s, algae , Fungus fungi , and the gametophyte s of plant s. In contrast to gametogenesis in animal s, a gametangium is a haploid structure and formation of gametes does not involve meiosis . Types of gametangia Depending on the type of gamete produced in a gametangium, several types can be distinguished. Female Main Archegonium Oogonium Female gametangia are most commonly called Archegonium archegonia . They produce egg cell s and are the sites for fertilization . Archegonia are common in algae and primitive plants as well as gymnosperm s. In flowering plant s, they are replaced by the embryo sac inside the ovule . Male Main Antheridium The male gametangia are most commonly called Antheridium antheridia . They produce Sperm sperm cells that they release for fertilization. Antheridia producing non motile sperm spermatia are called spermatangia . Some antheridia do not release their sperm. For example, the oomycete antheridium is a syncytium with many sperm Cell nucleus nuclei and fertilization occurs via fertilization tubes growing from the antheridium and making contact with the egg cells. Antheridia are common in the gametophytes in lower plants such as bryophyte s, fern s, cycad s and ginkgo . In higher plants such as conifer s and flowering plants, they are replaced by pollen grain s. Isogamous In isogamy , the gametes look alike and cannot be classified into male or female. For example, in zygomycete s, two gametangia single cells at the end of hypha e form upon contact with each other and fuse into a zygospore . Category Reproduction Category Reproductive system Category Germ cells Botany stub cs Gametangium da Gametangium de Gametangium fr Gam tange kk lv Gametangiji nl Gametangium pl Gametangium pt Gamet ngio ru uk ... more details
Taxobox image Albugo candida.jpg image width 200px image caption Albugo candida on Capsella bursa pastoris domain Eukaryota regnum Chromalveolata phylum Heterokont ophyta classis Oomycete s ordo Peronosporales familia Albuginaceae genus Albugo species A. candida binomial Albugo candida binomial authority Pers. Kuntze synonyms Aecidium candidum small Pers. 1797 small br Albugo cruciferarum small DC. Gray 1821 small br Cystopus candidus small Pers. L v. 1847 small br Uredo candida small Pers. Fr., 1832 small br Uredo cruciferarum small DC. small White rust , Albugo candida is a species from family Albuginaceae however, all the other species in this family are called white rust. Like other water mould s which are plant pathogen s, it is sometimes called a fungus, although water moulds are not classified in the kingdom Fungi . Synonyms ref Species Fungorum http www.indexfungorum.org Names SynSpecies.asp?RecordID 122113 accessed March 17, 2007 ref Albugo candidans Aecidium candidum Pers., 1797 Albugo cruciferarum DC. Gray, 1821 Cystopus candidans Cystopus candidus Pers. L v., 1847 Uredo candida Pers. Fr., 1832 Uredo candida Rabenh. Uredo cruciferarum DC. Hosts Brassicaceae species. commons Albugo candida References reflist DEFAULTSORT Albugo Candida Category Water moulds Category Plant pathogens and diseases Category Canola diseases Watermould stub es Albugo candida nl Albugo candida sr Albugo candida ... more details
Infobox journal title Mycoscience cover editor Yoshitaka Ono discipline Mycology abbreviation Mycoscience publisher Springer Science Business Media on behalf of the Mycological Society of Japan country frequency Bimonthly history 1956 present openaccess license impact 0.774 impact year 2010 website http www.springer.com life sciences microbiology journal 10267 link1 http www.springerlink.com openurl.asp?genre issue&issn 1340 3540&issue current link1 name Online access link2 link2 name JSTOR OCLC 488153380 LCCN CODEN ISSN 1340 3540 eISSN 1618 2545 Mycoscience is a Peer review peer reviewed scientific journal covering all aspects of basic and applied research on fungi , including lichen s, yeast s, oomycete s, and slime mould s. It is the official journal of the Mycological Society of Japan . Abstracting and indexing Mycoscience is abstracted and indexed in columns list 2 Science Citation Index Science Citation Index Expanded Scopus CAB International InfoTrac Academic OneFile Academic Search AGRICOLA Biological Abstracts BIOSIS Previews BIOSIS CAB Direct database CAB Abstracts Chemical Abstracts Service Elsevier BIOBASE EMBiology VINITI Database RAS The Zoological Record According to the Journal Citation Reports , the journal has a 2010 impact factor of 0.774. ref name WoS cite book year 2011 chapter Mycoscience title 2010 Journal Citation Reports publisher Thomson Reuters edition Science accessdate 2011 11 28 work Web of Science postscript . ref References Reflist External links Official http www.springer.com life sciences microbiology journal 10267 Category Mycological literature Category English language journals Category Publications established in 1956 Category Bimonthly journals Category Springer academic journals ... more details
Image Betula pubescens Taphrina.jpg thumb 300px Witch s brooms on Downy Birch , caused by the fungus Taphrina betulina Image Witch s broom pinus strobus.jpg thumb 300px Witch s broom on a white pine. A Witch s broom is a disease or deformity in a woody plant , typically a tree , where the natural structure of the plant is changed. A dense mass of shoot s grows from a single point, with the resulting structure resembling a Broom tool broom or a bird s nest . One example of this would be cytokinin , a phytohormone , interfering with an auxin regulated bud. Usually auxin would keep the secondary, tertiary, and so on apexes from growing too much, but cytokinin releases them from this control, causing these apexes to grow into witch s brooms. Witch s broom growths last for many years and can be caused by many different types of organisms, such as fungus fungi , oomycete oomycetes , insect s, mistletoe , dwarf mistletoe s, mite s, nematode s, phytoplasma s and virus es. ref name AA Book of the British Countryside . Pub. London Drive Publications, 1973 . p. 519. ref Human activity is sometimes behind the introduction of these organisms for example when a person prunes a tree improperly, leaving the tree susceptible to disease. Witch s brooms occasionally result in desirable changes. Some cultivars of trees, such as Picea orientalis Tom Thumb Gold , were discovered as witch s brooms. If twigs of witches brooms are grafted onto normal rootstocks, freak trees result, showing that the attacking organism has changed the inherited growth pattern of the twigs. ref name AA Witch s brooms are used by various animals for nesting including the northern flying squirrel . ref http www.adfg.state.ak.us pubs notebook furbear nfsquirl.php ref See also Witch s Broom Nebula Moniliophthora perniciosa , cause of Witch s broom disease in cacao Epicormic shoot , shoots that develop from buds under the bark Adventitiousness , shoots that develop in unusual places In Toronto , the term witch s br ... more details
Image Downy and Powdery mildew on grape leaf.JPG right 200px thumb Example of Downy mildew left along with powdery mildew on a grape leaf Downy mildew refers to any of several types of oomycete microbes that are Obligate parasite obligate parasites of plants. Downy mildews exclusively belong to Peronosporaceae . In commerce commercial agriculture , they are a particular problem for growers of Cruciferae crucifer s, grape s and vegetable s that grow on vines. The prime example is Peronospora farinosa featured in http www.ncbi.nlm.nih.gov Taxonomy Browser wwwtax.cgi?id 134698 NCBI Taxonomy and http www.inra.fr Internet Produits HYP3 pathogene 6perfar.htm HYP3 . Symptoms The initial symptoms of downy mildew appear on leaves as light green to yellow spots. ref Schilder, Annemiek. http grapes.msu.edu downymildew.htm Downy mildew Plasmopara viticola. MSU Plant Pathology. ref Plant specific mildews Hop Downy Mildew caused by Pseudoperonospora humuli is specific to hops Humulus lupulus . The disease is the single most devastating disease in Western United States hopyards, since the microbe thrives in moist climates. Infected young hop bine botany bines become stunted with thickened clusters of pale curled leaves. These spikes have a silvery upper surface, while the undersides of leaves become blackened with spores. These dwarfed spikes are called basal spikes . Lateral or terminal spikes occur further up the vine. An entire hop crop could be devastated in only a few days. Similarly, cucurbit downy mildew caused by Pseudoperonospora cubensis is specific to cucurbits e.g., cantaloupe Cucumis melo , cucumber Cucumis sativus , pumpkin , Squash plant squash , watermelon Citrullus lanatus and other members of the Cucurbitaceae gourd family . The disease is one of the most important diseases of cucurbits worldwide. See also Blue mold of tobacco plants Peronosporaceae with a list of the downy mildew genera References reflist http www.safecrop.org english output proceedings.html SAF ... more details
chembox Verifiedfields changed verifiedrevid 408954960 ImageFile Metaxyl.png ImageSize 150px IUPACName 2 2,6 dimethylphenyl 2 methoxy 1 oxoethyl amino propanoic br acid methyl ester OtherNames Section1 Chembox Identifiers CASNo Ref cascite correct CAS CASNo 57837 19 1 PubChem 42586 ChEMBL Ref ebicite changed EBI ChEMBL 105809 SMILES CC1 C C CC C1 C N C C C O OC C O COC Section2 Chembox Properties Formula C sub 15 sub H sub 21 sub NO sub 4 sub MolarMass 279.33 g mol Appearance Fine white powder Density 1.20g cm sup 3 sup at 20 C MeltingPt 71 72 C ref O Neil, M.J. ed. . The Merck Index An Encyclopedia of Chemicals, Drugs, and Biologicals. 13th Edition, Whitehouse Station, NJ Merck and Co., Inc., 2001., p. 1058 ref BoilingPt 295.9 C at 760 mm Hg Solubility 8,400 mg L at 22 C LogP 1.65 octanol water ref Hansch, C., Leo, A., D. Hoekman. Exploring QSAR Hydrophobic, Electronic, and Steric Constants. Washington, DC American Chemical Society., 1995., p. 134 ref Section3 Chembox Hazards MainHazards FlashPt Autoignition Metalaxyl is a phenylamide fungicide with systemic function. Its chemical name is methyl N methoxyacetyl N 2,6 xylyl DL alaninate. It can be used to control Pythium in a number of vegetable crops, and Phytophthora in pea s. Metalaxyl M is the trade name of the optically pure stereoizomer. It is the active ingredient in the seed treatment agent Apron XL LS . ref http www.gov.mb.ca agriculture crops vegetablecrops pdf bmz10s02.pdf ref The fungicide has suffered severe Pesticide resistance resistance problems. The fungicide was marketed for use against Phytophthora infestans . However in the summer of 1980, in the Republic of Ireland , the crop was devastated by a potato blight epidemic after a resistant Race biology race of the oomycete appeared. ref http www.bspp.org.uk bsppnews bsppnews32 bsppnews32 3.htm Working on potato blight in Northern Ireland ref Irish farmer s later successfully sued the company for their losses. Fact date February 2007 Maximum pesticid ... more details
italictitle Taxobox image Adiantumjordanii.jpg status G4 status system TNC regnum Plant ae divisio Pteridophyta classis Pteridopsida ordo Polypodiales familia Pteridaceae subfamilia Vittarioideae genus Adiantum species A. jordanii binomial Adiantum jordanii binomial authority C. Muell. synonyms Adiantum jordanii is a perennial species of Adiantum maidenhair fern , in the Vittarioideae subfamily of the Pteridaceae . ref name Christenhusz 2011 The species is known by the common name California maidenhair . ref U.S. Department of Agriculture. 2009 ref It is native to California and Baja California . A. jordanii is found in the southernmost part of its range in Baja California with such flora associates as Mimulus aridus and Daucus pusillus . ref C. Michael Hogan. 2008 ref Each trailing leaf may reach over half a meter in length and is made up of many rounded green segments. Each segment has two to four lobes and it may split between the lobes, ref Jepson Manual . 1993 ref the underside of each segment bearing one to four sorus sori . WARNING Adiantum jordanii is a carrier of Sudden Oak Death which is caused by the fungus like oomycete , Phytophthora ramorum . The USDA enforces an import control, focusing intensely on areas CA, OR, NY in U.S.A. that are infected with Sudden Oak death. When sold, they must be identified by place of origin and must also be accompanied by a phytosanitary certificate . Do not take cuttings from wild specimens. ref U.S.D.A. Import Control Notice ref Adiantum jordanii, from native plant nurseries, is used in native plant and wildlife garden s. References Reflist refs ref name Christenhusz 2011 cite journal first1 Maarten J. M. last1 Christenhusz first2 Xian Chun last2 Zhang first3 Harald last3 Schneider title A linear sequence of extant families and genera of lycophytes and ferns journal Phytotaxa volume 19 pages 7 54 date 18 February 2011 url http www.mapress.com phytotaxa content 2011 f pt00019p054.pdf issn 1179 3163 ref C. Michael Hogan. 2 ... more details
italic title Taxobox name Hyaloperonospora arabidopsidis image Hyaloperonospora parasitica hyphae haustoria.jpg image width 200px image caption Hyaloperonospora arabidopsidis on Arabidopsis thaliana domain Eukaryota regnum Chromalveolata phylum Heterokont ophyta classis Water mold Oomycetes ordo Peronosporales familia Peronosporaceae genus Hyaloperonospora species H. arabidopsidis binomial Hyaloperonospora arabidopsidis binomial authority G um. G ker, Riethm., Voglmayr, Wei & Oberw., 2004 Hyaloperonospora arabidopsidis is a species from the family Peronosporaceae . It is an obligate parasite and the causal agent of the downy mildew of the plant model organism Arabidopsis thaliana ref Citation last Schlaich first N.L. last2 Slusarenko first2 A. chapter Downy mildew of Arabidopsis caused by Hyaloperonospora arabidopsidis formerly Hyaloperonospora parasitica editor last Lamour editor first K. editor2 last Kamoun editor2 first S. title Oomycete genetics and genomics place Hoboken, New Jersey publisher John Wiley & Sons year 2009 pages 263 285 isbn 978 0 470 25567 1 postscript none ref . While H. arabidopsidis has for a long time been subsumed under Peronospora parasitica now Hyaloperonospora parasitica , recent studies have shown that H. parasitica is restricted to Capsella bursa pastoris as a host plant. Like the other Hyaloperonospora species, H. arabidopsidis is highly specialized, and it is so far known with certainty only from Arabidopsis thaliana as a host plant. ref Citation last G ker first M. last2 Voglmayr first2 H. last3 Riethm ller first3 A. last4 Wei first4 M. last5 Oberwinkler first5 F. publication date 2004 title Phylogeny of Hyaloperonospora based on nuclear ribosomal internal transcribed spacer sequences. journal Mycological Progress volume 3 issue 2 pages 83 94 doi 10.1007 s11557 006 0079 7 year 2004 postscript none ref ref Citation last G ker first M. last2 Garc a Bl zquez first2 G. last3 Voglmayr first3 H. last4 Oberwinkler first4 F. publication da ... more details
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