Two New Marine Species of Placopus (Vampyrellida, Rhizaria) That Perforate the Theca of Tetraselmis (Chlorodendrales, Viridiplantae)
Two New Marine Species of Placopus (Vampyrellida, Rhizaria) That Perforate the Theca of Tetraselmis (Chlorodendrales, Viridiplantae)
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两个新的海洋物种(Vampyrellida、Rhizaria)可穿透 Tetraselmis(Chlorodendrales、Viridiplantae)的膜层
DOI:
10.1111/jeu.12698
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发表时间:
2018
影响因子:
2.2
通讯作者:
Hess S
中科院分区:
文献类型:
--
作者:
More K;Simpson AGB;Hess S
Vampyrellids (Vampyrellida, Rhizaria) are a major group of predatory amoebae known primarily from freshwater and soil. Environmental sequence data indicate that there is also a considerable diversity of vampyrellids inhabiting marine ecosystems, but their phenotypic traits and ecology remain largely unexplored. We discovered algivorous vampyrellids of the filoflabellate morphotype in coastal habitats in Atlantic Canada, established cultures by single‐cell isolation, and characterised three strains using light microscopy, SSU rRNA gene sequencing, feeding experiments and growth experiments at various salinities. These strains exhibit orange, discoid trophozoites with ventral filopodia, moving granules (“membranosomes”), and rolling locomotion, similar to freshwater species previously assigned toHyalodiscusHertwig & Lesser, but here moved toPlacopusSchulze (due to homonymy withHyalodiscusEhrenberg). SSU rRNA gene phylogenies place our strains in two distinct positions within “lineage B3” (here referred to as Placopodidae). Based on these morphological, habitat and molecular data, we describe two new species,Placopus melkonianisp. nov. andPlacopus pusillussp. nov., both of which feed on chlorophyte flagellates (Tetraselmis,Pyramimonas) and the cryptophyteChroomonas. They perforate the theca ofTetraselmisto extract the protoplast, and thereby represent the first vampyrellids known to degrade the biochemically exotic cell wall of the Chlorodendrales (Chlorophyta, Viridiplantae).
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DOI:
--
发表时间:
1989
期刊:
影响因子:
--
作者:
A. Hotchkiss;M. Gretz;K. Hicks;R. M. Malcolm Brown
通讯作者:
R. M. Malcolm Brown
影响因子:
2.9
作者:
J. Estevez;P. Leonardi;J. Alberghina
通讯作者:
J. Alberghina
影响因子:
11
作者:
Berney, Cedric;Romac, Sarah;Bass, David
通讯作者:
Bass, David
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
C. V. Mereschkowsky
通讯作者:
C. V. Mereschkowsky
DOI:
--
发表时间:
1984
期刊:
影响因子:
--
作者:
D. Domozych
通讯作者:
D. Domozych