Comparative transcriptomics reveals colony formation mechanism of a harmful algal bloom species Phaeocystis globosa

doi:10.1016/j.scitotenv.2020.137454

	Comparative transcriptomics reveals colony formation mechanism of a harmful algal bloom species Phaeocystis globosa
	Zhang, Shu-Feng 1; Zhang, Kun1 ; Cheng, Hua-Min 1; Lin, Lin 1; Wang, Da-Zhi 1,2
	2020-06-01
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
卷号	719 页码:9
通讯作者	Wang, Da-Zhi(dzwang@xmu.edu.cn)
摘要	Phaeocystis globosa is a major causative agent of harmful algal blooms in the global ocean, featuring a complex polymorphic life cycle alternating between free-living solitary cells and colonial cells. Colony is the dominant morphotype during P. globosa bloom. However, the underlying mechanism of colony formation is poorly understood. Here, we comprehensively compared global transcriptomes of P. globosa cells at four distinctive colony formation stages: free-living solitary cells, two cell-, four cell- and multi-cell colonies, under low (20 degrees C) and high (32 degrees C) temperatures, and characterized the genes involved in colony formation. Glycosaminoglycan (GAG) synthesis was enhanced while its degradation was decreased during colony formation, resulting in the accumulation of GAGs that are an essential substrate of the colony matrix. Nitrogen metabolism and glutamine synthesis were remarkably increased in the colonial cells, which provided precursors for GAG synthesis. Furthermore, cell defense and motility were down-regulated in the colonial cells, thereby conserving energy for GAG synthesis. Notably, high temperature led to decreased synthesis and increased degradation of GAGs, resulting in insufficient substrates to form the colony. Our study indicates that GAGs accumulation is critical for colony formation of P. globosa, but high temperature inhibits GAGS accumulation and colony formation. (C) 2020 Elsevier B.V. All rights reserved.
关键词	Phaeocystis globosa Harmful algal blooms Colony formation Transcriptome Temperature
DOI	10.1016/j.scitotenv.2020.137454
收录类别	SCI
语种	英语
资助项目	National Key Research Development Program of China[2017YFC1404302] ; National Natural Science Foundation of China[41425021] ; National Natural Science Foundation of China[41706131] ; Open Fund of CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences[KLMEES201806] ; 'Ten-Thousand Talents Program' for leading talents in science and technological innovation
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000521936300031
出版者	ELSEVIER
引用统计	被引频次：27[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/166979
专题	海洋生态与环境科学重点实验室
通讯作者	Wang, Da-Zhi
作者单位	1.Xiamen Univ, State Key Lab Marine Environm Sci, Coll Environm & Ecol, Xiamen 361102, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zhang, Shu-Feng,Zhang, Kun,Cheng, Hua-Min,et al. Comparative transcriptomics reveals colony formation mechanism of a harmful algal bloom species Phaeocystis globosa[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,719:9.
APA	Zhang, Shu-Feng,Zhang, Kun,Cheng, Hua-Min,Lin, Lin,&Wang, Da-Zhi.(2020).Comparative transcriptomics reveals colony formation mechanism of a harmful algal bloom species Phaeocystis globosa.SCIENCE OF THE TOTAL ENVIRONMENT,719,9.
MLA	Zhang, Shu-Feng,et al."Comparative transcriptomics reveals colony formation mechanism of a harmful algal bloom species Phaeocystis globosa".SCIENCE OF THE TOTAL ENVIRONMENT 719(2020):9.

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