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Achlya

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This article is about the water mould. For the moth genus of the same name, see Achlya (moth). For the chemical compound, see Achlorhydria.

Achlya
Mainly Achlya sp. Isolated from small stream around rice field. Incubated in room temperature on hemp seed
Mainly Achlya sp. Isolated from small stream around rice field. Incubated in room temperature on hemp seed
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Clade: Stramenopiles
Phylum: Oomycota
Order: Saprolegniales
Family: Saprolegniaceae
Genus: Achlya

Achlya is a genus of oomycete (water mold), in the family Saprolegniaceae. The genus includes several plant pathogens including Achlya conspicua and Achlya klebsiana. Unlike many other microorganisms, cell expansion is governed by changes in cell wall strength rather than changes in osmotic pressure.[1] The genome of Achlya hypogyna has been sequenced and can be accessed on public online databases, for example on the NCBI website (National Center for Biotechnology Information).[2]

The genus was first circumscribed in Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. vol.11 on page 514 in 1823 by Christian Gottfried Daniel Nees von Esenbeck.[3][4]

The type species is Achlya prolifera.[3]

The genus name of Achlya is named after Achlys, who in the Hesiodic Shield of Heracles, is one of the figures depicted on Heracles' shield, perhaps representing the personification of sorrow.[5]

Several Achyla spp. are pathogens of rice seedlings.[6]

Species

As accepted by Species Fungorum;[7]

Former species; (all are Saprolegniaceae family)[7]

  • A. abortiva f. normalis Coker (1927) = Achlya abortiva
  • A. acadiensis C.L. Moore (1912) = Newbya androgyna,
  • A. ambisexualis var. abjointa Raper (1939) = Achlya ambisexualis
  • A. ambisexualis var. gracilis Raper (1939) = Achlya ambisexualis
  • A. americana var. cambrica Trow (1899) = Achlya americana
  • A. americana var. megasperma Crooks (1937) = Achlya americana
  • A. americana var. megasperma Crooks ex Cejp (1959) = Achlya americana
  • A. androgyna (W. Archer) T.W. Johnson & R.L. Seym. (2005) = Newbya androgyna
  • A. apiculata de Bary (1888) = Newbya apiculata
  • A. apiculata var. forbesiana Cejp (1959) = Newbya apiculata
  • A. apiculata var. prolifica Coker & Couch (1923) = Newbya apiculata
  • A. benekei J.S. Furtado (1965) = Protoachlya benekei
  • A. bisexualis var. ambisexualis (Raper) Milko (1983) = Achlya ambisexualis
  • A. brasiliensis A.I. Milanez (1965) = Newbya brasiliensis
  • A. braunii Reinsch (1877) = Newbya androgyna
  • A. cambrica (Trow) T.W. Johnson (1956) = Achlya americana
  • A. curvicollis Beroqui (1969) = Newbya curvicollis
  • A. debaryana var. americana (Humphrey) Minden (1912) = Achlya americana,
  • A. debaryana var. intermedia Minden (1912) = Achlya debaryana
  • A. dioica Pringsh. (1860) = Saprolegnia dioica, Saprolegniaceae
  • A. dubia var. pigmenta Chaudhuri & Kochhar (1935) = Achlya dubia
  • A. flagellata var. yezoensis S. Ito & Nagai (1931) = Achlya flagellata
  • A. klebsiana var. indica Chaudhuri & Kochhar (1936) = Achlya klebsiana
  • A. lignicola Hildebr. (1867) = Achlya racemosa
  • A. megasperma Humphrey (1893) = Newbya megasperma
  • A. mucronata Ziegler (1958) = Protoachlya mucronata
  • A. oblongata de Bary (1888) = Newbya oblongata
  • A. oblongata var. gigantica E.J. Forbes (1935) = Newbya oblongata
  • A. oblongata var. globosa Humphrey (1893) = Newbya oblongata
  • A. oligocantha de Bary (1888) = Newbya oligocantha
  • A. oligocantha var. brevispina Schkorb. (1923) = Newbya oligocantha
  • A. ornata T.W. Johnson & R.L. Seym. (2005) = Newbya pascuicola
  • A. paradoxa Coker (1914) = Isoachlya paradoxa
  • A. polyandra sensu de Bary, = Achlya debaryana
  • A. polyandra Hildebr. (1867) = Newbya polyandra
  • A. racemosa f. maxima Minden (1912) = Achlya racemosa
  • A. racemosa f. polyspora Schkorb. (1923) = Achlya racemosa
  • A. racemosa var. lignicola (Hildebr.) Cornu (1881) = Achlya racemosa
  • A. racemosa var. maxima (Minden) Cejp (1959) = Achlya racemosa
  • A. racemosa var. spinosa (de Bary) Cornu (1881) = Newbya spinosa
  • A. racemosa var. stelligera Cornu (1881) = Achlya racemosa
  • A. recurva Cornu (1881) = Newbya recurva
  • A. spinosa de Bary (1881) = Newbya spinosa
  • A. stellata de Bary (1888) = Newbya stellata
  • A. stellata var. multispora J.N. Rai & J.K. Misra (1977) = Protoachlya mucronata
  • A. treleaseana (Humphrey) Kauffman (1906) = Newbya androgyna

References

  1. ^ Extension growth of the water mold Achlya: interplay of turgor and wall strength
  2. ^ Misner, I.; Blouin, N.; Leonard, G.; Richards, T. A.; Lane, C. E. (2015). "The Secreted Proteins of Achlya hypogyna and Thraustotheca clavata Identify the Ancestral Oomycete Secretome and Reveal Gene Acquisitions by Horizontal Gene Transfer". Genome Biology and Evolution. 7 (1): 120–135. doi:10.1093/gbe/evu276. PMC 4316629. PMID 25527045.
  3. ^ a b "Index Fungorum - Names Record: Achlya". www.indexfungorum.org. Retrieved 2021-07-07.
  4. ^ Nees von Esenbeck, C.G.D. (1823). Carus, J.V. (ed.). "Beitrag zur Geschichte der etc. Schimmelgattungen". Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 11: 514.
  5. ^ Burkhardt, Lotte (2022). Eine Enzyklopädie zu eponymischen Pflanzennamen [Encyclopedia of eponymic plant names] (pdf) (in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2022. ISBN 978-3-946292-41-8. Retrieved January 27, 2022.
  6. ^ Saichuk, Johnny, ed. (2014). "Rice Production Handbook" (PDF). Louisiana State University Agricultural Center. Archived from the original (PDF) on 2020-12-09.
  7. ^ a b "Achyla - Search Page". www.speciesfungorum.org. Species Fungorum. Retrieved 24 December 2022.
  • Sosa, Emilio R.; Landsberg, Jan H.; Kiryu, Yasunari; Stephenson, Christy M.; Cody, Theresa T.; Dukeman, Angela K.; Wolfe, Heather P.; Vandersea, Mark W.; Litaker, R. Wayne (March 2007). "Pathogenicity studies with the fungi Aphanomyces invadans, Achlya bisexualis, and Phialemonium dimorphosporum: induction of skin ulcers in striped mullet". Journal of Aquatic Animal Health. 19 (1): 41–48. doi:10.1577/H06-013.1. PMID 18236631.

Further reading

  • Tsunehiro, Aki; Yukimasa, Matsumoto; Tsotomu, Morinaga; Seiji, Kawamoto; Seiko, Shigeta; Kazuhisa, Ono; Osamu, Suzuki (February 1999). "Lipid composition of a newly isolated polyunsaturated fatty acid producing fungus, Achyla sp. ma-2801". Journal of Fermentation and Bioengineering. 86 (5): 504–507. doi:10.1016/S0922-338X(98)80160-8.
  • O'Brien, Megan A.; Misner, Ian; Lane, Christopher E. (March 2014). "Mitochondrial Genome Sequences and Comparative Genomics of Achlya hypogyna and Thraustotheca clavata". Eukaryotic Microbiology. 61 (2): 146–154. doi:10.1111/jeu.12092. PMID 24252096. S2CID 23122050.


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