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Nitrogen availability improves the physiological resilience of coral endosymbiont Cladocopium goreaui to high temperature

文献类型：期刊论文

作者Zhou, Zhi2,4; Zhang, Kaidian1,4; Wang, Lingui2; Su, Yilu2; Wang, Jierui1; Song, Tingting2; Yang, Xiaohong1; Tang, Jia3; Lin, Senjie1,4
刊名JOURNAL OF PHYCOLOGY
出版日期2021-05-08
页码12
关键词apoptosis heat stress nitrogen limitation stress response symbiodiniaceae
ISSN号0022-3646
DOI10.1111/jpy.13156
通讯作者Zhou, Zhi(zhouzhi@hainanu.edu.cn) ; Lin, Senjie(senjie.lin@uconn.edu)
英文摘要The physiological response of symbiotic Symbiodiniaceae to high temperature is believed to result in coral bleaching. However, the potential effect of nitrogen availability on heat acclimatization of symbiotic Symbiodiniaceae is still unclear. In this study, physiological responses of Symbiodiniaceae Cladocopium goreaui to temperature and nitrogen nutrient stress conditions were investigated. Nitrogen deficiency caused significant declines in cell concentration and chlorophyll content per cell, but significant increases in nitric oxide synthase activity, caspase3 activation level, and cellular carbon content of C. goreaui at normal temperature. Algal cells under high temperature and nitrogen deficiency showed significant rises in Fv/Fm, catalase activity, and caspase3 activation level, but no significant changes in cell yield, cell size, chlorophyll content, superoxide dismutase, nitric oxide synthase activity, and cellular contents of nitrogen and carbon, in comparison with those under normal temperature and nitrogen deficiency. Growth, chlorophyll, and nitrogen contents of algal cells under the high temperature and nitrogen-replete conditions were significantly higher than those under high temperature or nitrogen deficiency alone, whereas nitric oxide synthase activity, superoxide dismutase activity, catalase activity, carbon content, and caspase3 activation level exhibited opposite trends of variation. Transcriptomic and network analyses revealed ion transport and metabolic processes mainly involved in regulating these physiological activities under different temperature and nitrogen nutrient. The totality of results shows that high temperature activates stress responses, induces antioxidant capacity of apoptosis, and limits the growth rate of C. goreaui. Adequate nitrogen nutrient can improve the resilience of this Symbiodiniaceae against heat stress through repressed apoptosis, promoted ion transport, and optimized metabolism.
WOS关键词ELEVATED AMMONIUM ; OXIDATIVE STRESS ; HEAT-STRESS ; SYMBIODINIUM ; EUTROPHICATION ; TRANSCRIPTOME ; EXPRESSION ; CYTOSCAPE ; APOPTOSIS ; RESPONSES
资助项目China Scholarship Council[201708460042] ; Major Science and Technology Program of Hainan Province, National Key R&D Program of China[2018YFC1406500] ; Major Science and Technology Program of Hainan Province, National Key R&D Program of China[ZDKJ2019011] ; National Science Foundation of China[31772460] ; National Science Foundation of China[31661143029] ; Natural Science Foundation of Hainan Province[2019RC067]
WOS研究方向Plant Sciences ; Marine & Freshwater Biology
语种英语
WOS记录号WOS:000648396800001
资助机构China Scholarship Council ; Major Science and Technology Program of Hainan Province, National Key R&D Program of China ; National Science Foundation of China ; Natural Science Foundation of Hainan Province
源URL[http://ir.yic.ac.cn/handle/133337/27271]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Zhou, Zhi; Lin, Senjie
作者单位1.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361102, Fujian, Peoples R China
2.Hainan Univ, Coll Marine Sci, Hainan Aquaculture Breeding Engn Res Ctr, Haikou 570228, Hainan, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Shandong, Peoples R China
4.Univ Connecticut, Dept Marine Sci, Groton, CT 06340 USA
推荐引用方式
GB/T 7714		 Zhou, Zhi,Zhang, Kaidian,Wang, Lingui,et al. Nitrogen availability improves the physiological resilience of coral endosymbiont Cladocopium goreaui to high temperature[J]. JOURNAL OF PHYCOLOGY,2021:12.
APA Zhou, Zhi.,Zhang, Kaidian.,Wang, Lingui.,Su, Yilu.,Wang, Jierui.,...&Lin, Senjie.(2021).Nitrogen availability improves the physiological resilience of coral endosymbiont Cladocopium goreaui to high temperature.JOURNAL OF PHYCOLOGY,12.
MLA Zhou, Zhi,et al."Nitrogen availability improves the physiological resilience of coral endosymbiont Cladocopium goreaui to high temperature".JOURNAL OF PHYCOLOGY (2021):12.

入库方式： OAI收割

来源：烟台海岸带研究所

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