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Quantitative proteomics reveals the key molecular events occurring at different cell cycle phases of the in situ blooming dinoflagellate cells

文献类型： 外文期刊

作者： Zhang, Hao 1 ; Liu, Jiuling 1 ; He, Yanbin 3 ; Xie, Zhangxian 1 ; Zhang, Shufei 1 ; Zhang, Yong 1 ; Lin, Lin 1 ; Liu, Siq 1 ;

作者机构： 1.Xiamen Univ, State Key Lab Marine Environm Sci, Coll Environm & Ecol, Xiamen 361005, Peoples R China

2.Chinese Acad Sci, Key Lab Ocean & Marginal Sea Geol, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China

3.BGI Shenzhen, Beishan Ind Zone 11th Bldg, Shenzhen 518083, Guangdong, Peoples R China

4.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China

关键词： Cell cycle; Dinoflagellates; Harmful algal blooms; iTRAQ; Quantitative proteomics

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：7.963； 五年影响因子：7.842 ）

ISSN： 0048-9697

年卷期： 2019 年 676 卷

页码：

收录情况： SCI

摘要： Dinoflagellate blooms are the results of rapid cell proliferation governed by cell cycle, a highly-ordered series of events that culminates in cell division. However, little is known about cell cycle progression of the in situ bloom cells. Here, we compared proteomes of the in situ blooming cells of a dinoflagellate Prorocentrum donghaiense collected at different cell cycle phases. The blooming P. donghaiense cells completed a cell cycle within 24 h with a high synchronization rate of 82.7%. Proteins associated with photosynthesis, porphyrin and chlorophyll synthesis, carbon, nitrogen and amino add metabolisms exhibited high expressions at the G(1) phase; DNA replication and mismatch repair related proteins were more abundant at the S phase; while protein synthesis and oxidative phosphorylation were highly enriched at the G(2)/M phase. Cell cycle proteins presented similar periodic did patterns to other eukaryotic cells, and higher expressions of proliferating cell nuclear antigen and cyclin dependent kinase 2 at the S phase ensured the smooth S-G(2)/M transition. Strikingly, four histones were first identified in P. donghaiense and highly expressed at the G(2)/M phase, indicating their potential roles in regulating cell cycle. This study presents the first quantitative survey, to our knowledge, of proteome changes at different cell cycle phases of the in situ blooming cells in natural environment and provides insights into cell cycle regulation of the blooming dinoflagellate cells. (C) 2019 Elsevier B.V. All rights reserved.

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