Neochloris

Neochloris
	Neochloris aquatica
Scientific classification
(unranked):	Viridiplantae
Division:	Chlorophyta
Class:	Chlorophyceae
Order:	Sphaeropleales
Family:	Neochloridaceae
Genus:	Neochloris; Starr, 1955
Type species
	Neochloris aquatica;
Species[1]
	N. aquatica; N. conjuncta; N. dissecta; N. gelatinosa; N. pseudostigmata; N. pseudostigmatica; N. pyrenoidosa; N. vigensis; N. wimmeri;

Neochloris is a genus of green algae in the family Neochloridaceae.[1] It is found in freshwater aquatic and terrestrial soil habitats.[2]

Description

Neochloris consists of spherical cells that are solitary or sometimes found in small clusters. The cell wall is thin and smooth. Cells are multinucleate (with multiple nuclei).[3] Each cell has a single parietal chloroplast with one to several pyrenoids.[2]

Neochloris reproduces asexually. Reproduction occurs via aplanospores or zoospores. Zoospores bear two flagella; upon spore germination, the zoospore loses its flagella and becomes spherical.[4]

Taxonomy

Neochloris was first described by Richard C. Starr in 1955 with a single species Neochloris aquatica, with more species being added by later authors. However, the genus in this circumscription was polyphyletic.[3] Species one placed in Neochloris have now been placed in two segregate genera, Ettlia and Parietochloris.[3]

Ettlia and Parietochloris differ from Neochloris in being uninucleate while Neochloris sensu stricto contains multinucleate cells.[3] Additional features of the flagellar apparatus are visible in ultrastructure as well. The basal bodies of the zoospore flagella in Neochloris are arranged directly opposite to each other,[3] those of Ettlia are arranged in a clockwise orientation, and those of Parietochloris are arranged in a counterclockwise orientation.[3]

Ecology

The species Neochloris aquatica may have potential as a biological control agent against mosquitoes, specifically Culex quinquefasciatus.[5]

References

Guiry, M.D. & Guiry, G.M. (2007). "Genus: Neochloris taxonomy browser". AlgaeBase version 4.2 World-wide electronic publication, National University of Ireland, Galway. Retrieved 2023-09-21.
Bicudo, Carlos E. M.; Menezes, Mariângela (2006). Gêneros de Algas de Águas Continentais do Brasil: chave para identificação e descrições (2 ed.). RiMa Editora. p. 508. ISBN 857656064X.
Deason, T. R.; Silva, P. C.; Watanabe, S.; Floyd, G. L. (1991). "Taxonomic status of the species of the green algal genus Neochloris". Plant Systematics and Evolution. 177 (3–4): 213–219. doi:10.1007/BF00937958. S2CID 33372487.
Shubert, Elliot; Gärtner, Georg (2014). "Chapter 7. Nonmotile Coccoid and Colonial Green Algae". In Wehr, John D.; Sheath, Robert G.; Kociolek, J. Patrick (eds.). Freshwater Algae of North America: Ecology and Classification (2 ed.). Elsevier Inc. ISBN 978-0-12-385876-4.
Gil, M. Florencia; Fassolari, Marisol; Battaglia, Marina E.; Berón, Corina M. (2021). "Culex quinquefasciatus larvae development arrested when fed on Neochloris aquatica". PLOS Neglected Tropical Diseases. 15 (12): e0009988. doi:10.1371/journal.pntd.0009988. PMC 8641890. PMID 34860833.

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[Algaebase-1] Guiry, M.D. & Guiry, G.M. (2007). "Genus: Neochloris taxonomy browser". AlgaeBase version 4.2 World-wide electronic publication, National University of Ireland, Galway. Retrieved 2023-09-21.

[Bicudo_and_Menezes2006-2] Bicudo, Carlos E. M.; Menezes, Mariângela (2006). Gêneros de Algas de Águas Continentais do Brasil: chave para identificação e descrições (2 ed.). RiMa Editora. p. 508. ISBN 857656064X.

[Deason-3] Deason, T. R.; Silva, P. C.; Watanabe, S.; Floyd, G. L. (1991). "Taxonomic status of the species of the green algal genus Neochloris". Plant Systematics and Evolution. 177 (3–4): 213–219. doi:10.1007/BF00937958. S2CID 33372487.

[Shubert2014-4] Shubert, Elliot; Gärtner, Georg (2014). "Chapter 7. Nonmotile Coccoid and Colonial Green Algae". In Wehr, John D.; Sheath, Robert G.; Kociolek, J. Patrick (eds.). Freshwater Algae of North America: Ecology and Classification (2 ed.). Elsevier Inc. ISBN 978-0-12-385876-4.

[5] Gil, M. Florencia; Fassolari, Marisol; Battaglia, Marina E.; Berón, Corina M. (2021). "Culex quinquefasciatus larvae development arrested when fed on Neochloris aquatica". PLOS Neglected Tropical Diseases. 15 (12): e0009988. doi:10.1371/journal.pntd.0009988. PMC 8641890. PMID 34860833.