Cochliopodium

Cochliopodium
	Amoeba of the genus Cochliopodium. Phase contrast microscopy. In the center, three digestive vacuoles with algae are visible, and a dark cell nucleus is located just below. The cytoplasm contains a lot of light contractile vacuoles, you can notice yellowish crystals.
Scientific classification
Domain:	Eukaryota
Phylum:	Amoebozoa
Class:	Discosea
Order:	Himatismenida
Family:	Cochliopodiidae
Genus:	Cochliopodium; Hertwig & Lesser 1874
Type species
	Cochliopodium pellucidum; Hertwig & Lesser 1874

Cochliopodium is a Himatismenida genus.^[1]

It has been found in eyewash stations.^[2]

It includes:

C. actinophorum (Auerbach 1856) Page 1976
?C. ambiguum Penard 1904
C. arabianum Tekle, Gorfu & Anderson 2015
C. barki Kudryavtsev, Brown et Smirnov 2004
C. bilimbosum (Auerbach 1856) Leidy 1879^[3]^[4]
C. clarum Schaeffer 1926
?C. crassiusculum Penard 1905
?C. erinaceum Penard 1902
C. gallicum Kudryavtsev & Smirnov 2006^[5]
C. granulatum Penard 1890
C. gulosum Schaeffer 1926
C. kieliense Kudryavtsev 2006
C. larifeili Kudriavtsev 1999
C. maeoticum Kudryavtsev 2006
C. megatetrastylus Anderson & Tekle 2013
C. minus Page 1976^[6]
C. minutoidum Kudryavtsev 2006
?C. minutum West 1901
?C. muscorum Wang 1977
?C. obscurum Pen.
?C. papyrum Bovee 1958
C. pentatrifurcatum Tekle et al. 2013
C. plurinucleolum Geisen et al. 2014
?C. radiosum Biernacka 1963
?C. silvaticum Varga 1935
C. spiniferum Kudryavtsev 2004
?C. spumosum Penard 1904
C. vestitum (Archer 1871) Archer 1877

Recombination and Meiosis

The Cochliopodium genome includes genes whose functions are employed in the process of genetic recombination suggesting the possibility of a sexual stage.^[7] The genome sequence of Cochliopodium minus contains a complete set of genes necessary for meiosis a key stage of sexual reproduction.^[8]

References

^ Kudryavtsev A (July 2006). ""Minute" species of Cochliopodium (Himatismenida): Description of three new fresh- and brackish-water species with a new diagnosis for Cochliopodium minus Page, 1976". Eur. J. Protistol. 42 (2): 77–89. doi:10.1016/j.ejop.2005.12.002. PMID 17070753.
^ Paszko-Kolva C, Yamamoto H, Shahamat M, Sawyer TK, Morris G, Colwell RR (January 1991). "Isolation of amoebae and Pseudomonas and Legionella spp. from eyewash stations". Appl. Environ. Microbiol. 57 (1): 163–7. Bibcode:1991ApEnM..57..163P. doi:10.1128/aem.57.1.163-167.1991. PMC 182678. PMID 2036003.
^ Srikanth S, Berk SG (October 1993). "Stimulatory effect of cooling tower biocides on amoebae". Appl. Environ. Microbiol. 59 (10): 3245–9. Bibcode:1993ApEnM..59.3245S. doi:10.1128/aem.59.10.3245-3249.1993. PMC 182444. PMID 8250551.
^ Hülsmann N, Galil BS (November 2001). "The effects of freshwater flushing on marine heterotrophic protists--implications for ballast water management". Mar. Pollut. Bull. 42 (11): 1082–6. Bibcode:2001MarPB..42.1082H. doi:10.1016/S0025-326X(01)00087-X. PMID 11763219.
^ Kudryavtsev A, Smirnov A (March 2006). "Cochliopodium gallicum n. sp. (Himatismenida), an amoeba bearing unique scales, from cyanobacterial mats in the Camargue (France)". Eur. J. Protistol. 42 (1): 3–7. doi:10.1016/j.ejop.2005.08.001. PMID 17070746.
^ Dyková I, Lom J, Machácková B (November 1998). "Cochliopodium minus, a scale-bearing amoeba isolated from organs of perch Perca fluviatilis". Dis. Aquat. Org. 34 (3): 205–10. doi:10.3354/dao034205. PMID 9925426.
^ Wood, F. C.; Heidari, A.; Tekle, Y. I. (2017). "Genetic Evidence for Sexuality in Cochliopodium (Amoebozoa)". The Journal of Heredity. 108 (7): 769–779. doi:10.1093/jhered/esx078. PMC 5892394. PMID 29036297.
^ Tekle, Y. I.; Wang, F.; Tran, H.; Hayes, T. D.; Ryan, J. F. (2022). "The draft genome of Cochliopodium minus reveals a complete meiosis toolkit and provides insight into the evolution of sexual mechanisms in Amoebozoa". Scientific Reports. 12 (1): 9841. Bibcode:2022NatSR..12.9841T. doi:10.1038/s41598-022-14131-y. PMC 9198077. PMID 35701521.

External links

"Genus Cochliopodium". UniProt. Retrieved 2009-06-18.(taxonomy information)

[pmid17070753-1] Kudryavtsev A (July 2006). ""Minute" species of Cochliopodium (Himatismenida): Description of three new fresh- and brackish-water species with a new diagnosis for Cochliopodium minus Page, 1976". Eur. J. Protistol. 42 (2): 77–89. doi:10.1016/j.ejop.2005.12.002. PMID 17070753.

[pmid2036003-2] Paszko-Kolva C, Yamamoto H, Shahamat M, Sawyer TK, Morris G, Colwell RR (January 1991). "Isolation of amoebae and Pseudomonas and Legionella spp. from eyewash stations". Appl. Environ. Microbiol. 57 (1): 163–7. Bibcode:1991ApEnM..57..163P. doi:10.1128/aem.57.1.163-167.1991. PMC 182678. PMID 2036003.

[pmid8250551-3] Srikanth S, Berk SG (October 1993). "Stimulatory effect of cooling tower biocides on amoebae". Appl. Environ. Microbiol. 59 (10): 3245–9. Bibcode:1993ApEnM..59.3245S. doi:10.1128/aem.59.10.3245-3249.1993. PMC 182444. PMID 8250551.

[pmid11763219-4] Hülsmann N, Galil BS (November 2001). "The effects of freshwater flushing on marine heterotrophic protists--implications for ballast water management". Mar. Pollut. Bull. 42 (11): 1082–6. Bibcode:2001MarPB..42.1082H. doi:10.1016/S0025-326X(01)00087-X. PMID 11763219.

[pmid17070746-5] Kudryavtsev A, Smirnov A (March 2006). "Cochliopodium gallicum n. sp. (Himatismenida), an amoeba bearing unique scales, from cyanobacterial mats in the Camargue (France)". Eur. J. Protistol. 42 (1): 3–7. doi:10.1016/j.ejop.2005.08.001. PMID 17070746.

[pmid9925426-6] Dyková I, Lom J, Machácková B (November 1998). "Cochliopodium minus, a scale-bearing amoeba isolated from organs of perch Perca fluviatilis". Dis. Aquat. Org. 34 (3): 205–10. doi:10.3354/dao034205. PMID 9925426.

[7] Wood, F. C.; Heidari, A.; Tekle, Y. I. (2017). "Genetic Evidence for Sexuality in Cochliopodium (Amoebozoa)". The Journal of Heredity. 108 (7): 769–779. doi:10.1093/jhered/esx078. PMC 5892394. PMID 29036297.

[8] Tekle, Y. I.; Wang, F.; Tran, H.; Hayes, T. D.; Ryan, J. F. (2022). "The draft genome of Cochliopodium minus reveals a complete meiosis toolkit and provides insight into the evolution of sexual mechanisms in Amoebozoa". Scientific Reports. 12 (1): 9841. Bibcode:2022NatSR..12.9841T. doi:10.1038/s41598-022-14131-y. PMC 9198077. PMID 35701521.

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