New clade of silicified bolidophytes that belong to Triparma (Bolidophyceae, Stramenopiles).
New clade of silicified bolidophytes that belong to Triparma (Bolidophyceae, Stramenopiles).
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属于Triparma（Bolidophyceae，Stramenopiles）的硅化蛇形植物的新分支。
DOI：
10.1111/pre.12413
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发表时间：
2020
影响因子：
1.5
通讯作者：
M.
中科院分区：
文献类型：
--
作者：
Yamada;K.;Sato;S.;Yamazaki;M.;Yoshikawa;S.;Kuwata;A.;& Ichinomiya;M.
小型浮游植物属有机单胞菌纲，包含两种不同的形态：硅化种和裸鞭毛种（前身为有机单胞菌）。最近的研究表明，四种硅化物种/菌株(Triparma laevis f. inornata，T。拉维斯f. longispina，T。strigata,和。疣状线虫（afft .verrucosa）属于一个单一的分支，是副寄生的，因为它也包含一个未分类的鞭毛菌株，是鞭毛物种T。eleuthera。本研究分离并鉴定了两个硅化物种的新菌株，以检验硅化固体植物的系统发育统一性。分离株在细胞壁上具有良好的环状结构，因此被鉴定为asT. retinervis株。18S rDNA和rbcl系统发育分析表明，t。视网膜形成了一个新的硅化分支，是鞭毛物种的姐妹。帕西菲卡。这表明至少有两个不同的分支，包括硅化和鞭毛三种。
The small phytoplankton genusTriparmabelongs to the class Bolidophyceae and contains two distinct forms: silicified species and naked flagellated species (formerlyBolidomonas). Recent studies showed that four silicified species/strains (Triparma laevis f. inornata,T. laevis f. longispina,T. strigata, andT. aff.verrucosa) belong to a single clade that is paraphyletic, because it also contains an unclassified flagellated strain, and is sister to a flagellated species,T. eleuthera. In this study, we isolated and characterized two new strains of silicified species to test the phylogenetic unity of silicified bolidophytes. The isolates were identified asT. retinervisstrains because they possessed fine areolation on the cell wall. 18S rDNA andrbcL phylogenetic analyses demonstrated thatT. retinervisformed a new silicified clade that is sister to the flagellated speciesT. pacifica. This reveals that there are at least two distinct clades including both silicified and flagellatedTriparmaspecies.