Photosynthetic and metabolic responses of eelgrass Zostera marina L. to short-term high-temperature exposure

IOCAS-IR

	Photosynthetic and metabolic responses of eelgrass Zostera marina L. to short-term high-temperature exposure
	GAO Yaping ; JIANG Zengjie ; DU Meirong ; FANG Jinghui ; JIANG Weiwei; FANG Jianguang
发表期刊	Journal of Oceanology and Limnology
ISSN	2096-5508
	2019-01-15
出版年	2019
卷号	v.37 期号:01 页码:201-211
文献类型	CNKI期刊论文
摘要	In recent years, extreme heat events have occurred worldwide and the ocean temperature has been rising, causing stress on the photosynthesis and growth of seagrass. Metabolomics enables detection of metabolic changes under environmental stress. In this study, the photosynthetic physiology and metabolic changes of the eelgrass Zostera marina L. in response to 48 h exposure to 32°C were investigated. The results showed that high temperature induced signi?cant inhibition of photosynthetic effciency(Δ F/F′ m)(23.9%lower than the control), enhanced respiration(58.3% higher), and decreased carbohydrate decomposition products and tricarboxylic acid(TCA) cycle intermediate products, indicating that the energy supply of the eelgrass may be insuffcient at high temperature. In addition, high temperature decreased stearic acid and linoleic acid in eelgrass, suggesting the composition of the membrane system of eelgrass may change at high temperature and implying that high temperature may cause the membrane system to be unstable.
关键词	high temperature eelgrass photosynthetic response metabolome
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A006;
CNKI专题名称	生物学;
分类号	Q945
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	Supported by the National Natural Science Foundation of China(Nos.41306117,41676147,U1405234) ; the International Science&Technology Cooperation Program of China(No.2016YFE0112600)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/188668
专题	中国科学院海洋研究所
作者单位	1.InstituteofOceanology,ChineseAcademyofSciences 2.UniversityofChineseAcademyofSciences 3.KeyLaboratoryofSustainableDevelopmentofMarineFisheries,MinistryofAgriculture,YellowSeaFisheriesResearchInstitute,ChineseAcademyofFisherySciences 4.FunctionLaboratoryforMarineFisheriesScienceandFoodProductionProcesses,QingdaoNationalLaboratoryforMarineScienceandTechnology
推荐引用方式 GB/T 7714	GAO Yaping,JIANG Zengjie,DU Meirong,et al. Photosynthetic and metabolic responses of eelgrass Zostera marina L. to short-term high-temperature exposure. 2019.