Taxonomic status of the species of the green algal genusNeochloris

Deason, Temd R.; Silva, P. C.; Watanabe, Shin; Floyd, Gary L.

doi:10.1007/bf00937958

Cited by 77 publications

(73 citation statements)

References 16 publications

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“…minor, usually reproduce asexually by autospores (aplanospores) and, less frequently, by zoospores (Komárek & Fott, 1983;Komárek, 1989;Watanabe & Floyd, 1989;Deason et al, 1991;Kouwets, 1995Kouwets, , 1996Lewis, 1997).…”

Section: Discussionmentioning

confidence: 99%

Light is a crucial signal for zoosporogenesis and gametogenesis in some green microalgae

Přibyl

2013

European Journal of Phycology

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Patterns of reproduction were investigated in some microalgal species of Chlorophyceae (Botryosphaerella sudetica, Neochloris aquatica, Neochloris vigensis, Bracteacoccus minor). Under continuous light, the microalgae reproduced asexually producing autospores. However, appropriate manipulation of external conditions led to a change in the reproduction pattern towards production of zoospores or gametes. Production of zoospores and gametes was inhibited by light; motile cells emerged when microalgae were cultivated in darkness. The period of dark treatment necessary for zoosporogenesis or gametogenesis differed substantially among species that were tested. Sexual reproduction was observed in Neochloris vigensis and Bracteacoccus minor, whose generative life cycle had not been previously reported. The morphology of motile cells, the mode of sexual reproduction, and the efficiency of both the production of motile stages and mating events, were investigated. In order to gain detailed insights into patterns of reproduction, Botryosphaerella sudetica was selected for investigation under different light treatments. Nonactinic red light applied in the early phase of dark cultivation (up to 2 h) suppressed both zoosporogenesis and gametogenesis. However, after a 3-h dark pre-treatment, red light treatment had no effect on zoosporogenesis or gametogenesis. In contrast, nonactinic blue light did not block zoosporogenesis or gametogenesis, regardless of the time of treatment. The possible role of a redlight photoreceptor in zoosporogenesis and gametogenesis is discussed.

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Section: Discussionmentioning

confidence: 99%

Light is a crucial signal for zoosporogenesis and gametogenesis in some green microalgae

Přibyl

2013

European Journal of Phycology

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“…The Chlamydomonadales is characterized by a CW flagellar apparatus orientation in biflagellate members, but quadriflagellate representatives may display various other orientations (Nakayama et al, 1996a;Nozaki et al, 2003;Watanabe et al, 2006b). The Sphaeropleales include nonmotile unicells or colonies that produce biflagellate zoospores with a DO basal body configuration (Deason et al, 1991). The Chaetophorales and Chaetopeltidales are both characterized by quadriflagellate motile cells.…”

Section: Chlorophyceaementioning

confidence: 99%

Phylogeny and Molecular Evolution of the Green Algae

Leliaert

Smith

Moreau

et al. 2012

Critical Reviews in Plant Sciences

761

655

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“…Deason et al 1991, the Hydrodictyaceae (Dumortier) emend. Deason et al 1991 and the Neochloridaceae (Ettl et KomaÂ rek) emend. Deason et al 1991.…”

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confidence: 98%

“…Deason et al 1991 and the Neochloridaceae (Ettl et KomaÂ rek) emend. Deason et al 1991. The order includes unicellular, ®lamen-tous, or coenobic green algae that produce motile cells with directly-opposed basal bodies.…”

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confidence: 98%

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Phylogenetic position of the Sphaeropleaceae (Chlorophyta)

Wolf

Buchheim

Hegewald³

et al. 2002

Plant Systematics and Evolution

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The complete 18S rRNA gene sequences of four Sphaeroplea C.A. Agardh strains (Sphaeropleales, Sphaeropleaceae), two Atractomorpha Homan strains (Sphaeropleales, Sphaeropleaceae) and two Ankyra Fott strains (Chlorococcales, Characiaceae) were determined and subjected to phylogenetic analyses. The analyses indicated that all these taxa belong to a monophyletic lineage (Sphaeropleaceae) and are related to a group of chlorophycean algae comprising autosporic taxa and taxa that reproduce by zoospores which are characterized by directly opposed basal bodies. The taxonomic assignment of the Sphaeropleaceae as a family within the Sphaeropleales (Chlorophyta, Chlorophyceae) is discussed.

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Taxonomic status of the species of the green algal genusNeochloris

Cited by 77 publications

References 16 publications

Light is a crucial signal for zoosporogenesis and gametogenesis in some green microalgae

Light is a crucial signal for zoosporogenesis and gametogenesis in some green microalgae

Phylogeny and Molecular Evolution of the Green Algae

Phylogenetic position of the Sphaeropleaceae (Chlorophyta)

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