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Comparative transcriptomics reveals colony formation mechanism of a harmful algal bloom species Phaeocystis globosa
Zhang, Shu-Feng1; Zhang, Kun1; Cheng, Hua-Min1; Lin, Lin1; Wang, Da-Zhi1,2
2020-06-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume719Pages:9
Corresponding AuthorWang, Da-Zhi(dzwang@xmu.edu.cn)
AbstractPhaeocystis 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.
KeywordPhaeocystis globosa Harmful algal blooms Colony formation Transcriptome Temperature
DOI10.1016/j.scitotenv.2020.137454
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000521936300031
PublisherELSEVIER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/166979
Collection海洋生态与环境科学重点实验室
Corresponding AuthorWang, Da-Zhi
Affiliation1.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
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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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