柱状假足科成员Paraeustigmatos columelliferus, gen. et sp. nov.的系统发育与特征，可能代表假足科中一个基础类群

IF 1.5 3区生物学 Q3 PLANT SCIENCES

Fottea Pub Date : 2019-10-30 DOI:10.5507/FOT.2019.002

M. Fawley, Y. Nemcova, K. Fawley

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引用次数: 8

摘要

新分类群Paraeustigmatos columelliferus是从美国阿肯色州蒙蒂塞洛湖岸边的丝状藻Zygnema群中分离出来的。18S rDNA和rbcL序列的系统发育分析结果表明，该藻可能与真藻属同源;或者，它可能代表这个类的新的第三个分支。光镜和电子显微镜显示其细胞特征与真棘科其他成员相似;然而，细胞壁具有不同寻常的结构，类似于花粉粒壁的小柱。

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Phylogeny and characterization of Paraeustigmatos columelliferus, gen. et sp. nov., a member of the Eustigmatophyceae that may represent a basal group within the Eustigmatales

The new taxon, Paraeustigmatos columelliferus, was isolated from a mat of the filamentous alga Zygnema on the shore of Lake Monticello in Arkansas, USA. The results of the phylogenetic analysis of 18S rDNA and rbcL sequence data suggest that this alga is likely allied with the Eustigmatales; alternately, it may represent a new third linage of the class. Light and electron microscopy reveal cellular features similar to other members of the Eustigmatophyceae; however, the cell wall bears unusual structures that resemble the columellae of the walls of pollen grains.

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来源期刊

Fottea 生物-植物科学

CiteScore

4.00

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： Fottea is a journal of Czech Phycological Society (formerly bulletin Czech Phycology). Fottea publishes papers on all aspects of the ecology, physiology, biochemistry, cell biology, molecular biology, systematics and uses of algae (including cyanobacteria)