文献类型：期刊文献

英文题名：Euchlorocystis marina sp. nov. (Oocystaceae, Trebouxiophyceae), a New Species of Green Algae from a Seawater Shrimp Culture Pond

作者：Li, Feng[1];Dong, Mingbiao[1];Zhang, Ning[1];Zhang, Yulei[1];Li, Qianru[1];Qian, Zuyuan[1];Lian, Qingsheng[1];Luo, Jiansen[1];Huang, Xianghu[1];Li, Changling[1]

机构：[1]Guangdong Ocean Univ, Coll Fisheries, Zhanjiang 524088, Peoples R China

年份：2022

卷号：14

期号：2

外文期刊名：DIVERSITY-BASEL

收录：SCI-EXPANDED(收录号：WOS:000765516300001)、、WOS

基金：This research was mainly supported by the National Key R & D Plan Blue Granary Science and Technology Innovation (grant number 2020YFD0902005) and the Guangdong Provincial Key Area Research and Development Plan Projects (grant number 2020B0202010009); National Natural Science Foundation of China (grant number 32102796); Natural Science Foundation of Guangdong Province (grant number 2020A1515110086); Program for Scientific Research Start-up Funds of Guangdong Ocean University (grant number 060302022102 and R18020).

语种：英文

外文关键词：colonial morphology; Chorophyta; 18S rDNA; pyrenoid; marine species

外文摘要：Oocystaceae is a cosmopolitan family of green algae with distinct morphology and ultrastructure. Most of the reported species in this family are freshwater species, and there are few marine species reported. In this study, we describe a new marine species of Oocystaceae, Euchlorocystis marina sp. nov. based on material collected from a seawater shrimp culture pond in Zhanjiang, China. An integrative approach, including phylogenetic analyses of 18S rDNA, light microscopy, and transmission electron microscopy, was used for the taxonomic study of the strains. Morphological observation results showed that it has a multilayer thick cell wall, multiple pyrenoids in the chloroplast, and usually 2-16 cells forming a colony in the extended mother cell wall. These features are morphologically similar to the genus Euchlorocystis and are distinguished from other taxa of the family Oocystaceae. The 18S rDNA phylogenetic trees revealed that the strains and Euchlorocystis subsalina formed an independent clade in Oocystaceae with robust support. However, horseshoe-shaped chloroplasts and rounder cells morphologically distinguished it from Euchlorocystis subsalina. Apart from the morphology, the direct comparison of sequences also supported that they were distinct species. The discovery and description of the new species enriches the marine species record of the family Oocystaceae.