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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48278

Title: Community composition of pothosynthetic picoeukarytes in a subtropicl costal ecosystem, with particular emphasis on Micromons.
Authors: Lin Y-C
C-C Chung
C-Y Huang
L-Y Chen
G-C Gong
K-P Chiang
Contributors: 國立臺灣海洋大學:海洋觀光管理學士學位學程(學系)
Keywords: 18S rRNA gene
flow cytometric sorting
Date: 2017-05
Issue Date: 2018-08-21T08:48:08Z
Publisher: J. Eukaryot. Microbiol
Abstract: Abstract: Photosynthetic picoeukaryotes (PPEs) are important constituents in picoplankton communities in many marine ecosystems. However, little is known about their community composition in the subtropical coastal waters of the Northwestern Pacific Ocean. In order to study their taxonomic composition, this study constructed 18S rRNA gene libraries using flow cytometric sorting during the warm season. The results show that, after diatoms, prasinophyte clones are numerically dominant. Within prasinophytes, Micromonas produced the most common sequences, and included clades II, III, IV, and VI. We are establishing the new Micromonas clade VI based on our phylogenetic analysis. Sequences of this clade have previously been retrieved from the South China Sea and Red Sea, indicating a worldwide distribution, but this is the first study to detect clade VI in the coastal waters of Taiwan. The TSA-FISH results indicated that Micromonas clade VI peaked in the summer (~4 × 102 cells/ml), accounting for one-fifth of Micromonas abundance on average. Overall, Micromonas contributed half of Mamiellophyceae abundance, while Mamiellophyceae contributed 40% of PPE abundance. This study demonstrates the importance of Micromonas within the Mamiellophyceae in a subtropical coastal ecosystem.
Relation: 64(3) pp.349-359
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48278
Appears in Collections:[海洋觀光管理學士學位學程(學系)] 期刊論文

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