Ultrastructure and molecular phylogeny of CW and DO groups among unicellular green algae

单细胞绿藻CW和DO类群的超微结构和分子系统发育

• 批准号: 13640694
• 负责人: WATANABE Shin
• 金额: $ 1.28万
• 依托单位: Toyama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13640694/
• 关键词: green algae; Ultrastructure; Molecular Phylogeny; Taxonomy; Chlorococcales; Sphaelopleales; CW group; DO group; 国際情報交換

Results of CW group are described in 1 4, and those of DO group are in 5, as next. 1.Morphological and molecular phylogenetic analyses on 19 strains of sarcinoid-forming green algae revealed that Chlorosarcinopsis are divided into 4 subgroups, that Dcsmotetra is characterized by subapical basal bodies and parallel thylakoids in pyrenoids, that Chlorosarcina stigmatica(ASIB.T105) should be classified in a new genus, and that validity of Neochlorosarcina was ascertained. Physiological examinations on sarcinoid members by Groover and Bold(1969) was re-evaluated. 2.Heterotetracystis and Fasciculochloris bearing slightly unequal flagella are neither monophyletic to one another nor closely related with other unequal members, and the unequality was independently acquired. 3.Chlamydomonas monticola should be transferred to Heterotetrachalmydomonas by parallel basal bodies and unequal flagella, and is distinguished by naked gametes and anterior nucleus. 4.A unicellular green alga isolated from a farm soil of high salinity in Kazakhstan had chlorophyll a and b at the ratio of 2.62 in extraction of 80% aceton, and walled, astigmatic zoospores whose flagellar apparatus slightly bend from longitudinal axis of cell, and lengths of two flagella differ from one another at ratio of 2:1. This organism should be included in a new genus. 5.Phylogenetic analysis of Follicularia resolved a close affinity with Bracteacoccus in the Sphaeropleales. Despite of differences between them, the presence of numerous discoid chloroplasts are inferred to be their synapomorphic feature.

CW组的结果在1 4中描述，而DO组的结果为5，为下一个。 1.Morphological and molecular phylogenetic analyses on 19 strains of sarcinoid-forming green algae revealed that Chlorosarcinopsis are divided into 4 subgroups, that Dcsmotetra is characterized by subapical basal bodies and parallel thylakoids in pyrenoids, that Chlorosarcina stigmatica(ASIB.T105) should be classified in a new genus, and确定了新氯龙的有效性。对Grover和Bold（1969）对肉子动物成员进行的生理检查已重新评估。 2.携带略微不平等的鞭毛丝菌和筋膜氯氯氯氯此既不是彼此的单系，也不与其他不平等成员密切相关，并且不平等是独立获取的。 3.山虫蒙蒂洛拉应通过平行的基体和不等的鞭毛转移到异源性骨甲虫，并以裸子配子和前核的区分。 4.从哈萨克斯坦高盐度的农场分离出的单细胞绿藻，其叶绿素A和b的比例为2.62，在提取80％乙酸的提取中，并围墙，鲜明的动物孢子，其鲜明的鞭毛式鞭毛剂略微弯曲，其flyplatus略微弯曲了来自细胞的纵向轴，而两个鞭毛的长度与两个鞭子不同，另一个是flagella and an and a flagella and and and and a flagella。该生物应包括在新属中。 5.卵泡的晶体发育分析与Sphaeropleales中的bractecoccus息息相关。尽管存在差异，但仍推断出许多盘状叶绿体的存在是它们的突触形态特征。