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Transcriptome analysis reveals regulation of gene expression during photoacclimation to high irradiance levels in Dunaliella salina (Chlorophyceae)
Li, Yuanxiang1,2,3; Gu, Wenhui1,2; Huang, Aiyou1,2; Xie, Xiujun1,2; Wu, Songcui1,2; Wang, Guangce1,2
2019-10-01
Source PublicationPHYCOLOGICAL RESEARCH
ISSN1322-0829
Volume67Issue:4Pages:291-302
Corresponding AuthorWang, Guangce(gcwang@qdio.ac.cn)
AbstractThe unicellular green alga Dunaliella salina is an attractive organism for studying photoacclimation responses. Changes in irradiance level during cell growth affect the organization and structure of the photosystem and the composition of pigments. In this study, D. salina was exposed to different irradiance levels, and cell growth, photosynthetic activity, pigments, and neutral lipids were analyzed. Photosystem II activity and chlorophyll content were reduced, carotenoids content and neutral lipids increased as light intensity increased, suggesting that photosynthetic apparatus was reduced and photoprotection mechanisms were activated. The RNA of D. salina was sequenced to investigate the transcriptomic response of the organism after transitioning from normal light conditions to higher light intensity. Genes encoding for enzymes involved in photosynthesis were downregulated, whereas genes involved in the metabolism of carotenoid and triacylglycerol were upregulated. Genes encoding for photoprotective enzymes related to reactive oxygen species scavenging and to the xanthophyll cycle were also upregulated at higher irradiance levels. The present transcriptomic study would assist in the comprehensive understanding of photoacclimation mechanisms of D. salina.
Keywordcarotenoid light treatment microalgae photosynthesis photosynthetic activity
DOI10.1111/pre.12379
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41506188] ; China Nantong Municipal Applied Basic Research Program[MS12017025-2] ; Tianjin Demonstration Project for Innovative Development of Marine Economy[BHSF2017-21]
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS IDWOS:000491488900005
PublisherWILEY
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/164869
Collection实验海洋生物学重点实验室
Corresponding AuthorWang, Guangce
Affiliation1.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Key Lab Expt Marine Biol, Qingdao, Shandong, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Shandong, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li, Yuanxiang,Gu, Wenhui,Huang, Aiyou,et al. Transcriptome analysis reveals regulation of gene expression during photoacclimation to high irradiance levels in Dunaliella salina (Chlorophyceae)[J]. PHYCOLOGICAL RESEARCH,2019,67(4):291-302.
APA Li, Yuanxiang,Gu, Wenhui,Huang, Aiyou,Xie, Xiujun,Wu, Songcui,&Wang, Guangce.(2019).Transcriptome analysis reveals regulation of gene expression during photoacclimation to high irradiance levels in Dunaliella salina (Chlorophyceae).PHYCOLOGICAL RESEARCH,67(4),291-302.
MLA Li, Yuanxiang,et al."Transcriptome analysis reveals regulation of gene expression during photoacclimation to high irradiance levels in Dunaliella salina (Chlorophyceae)".PHYCOLOGICAL RESEARCH 67.4(2019):291-302.
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