Zhou, Zhi1,2; Zhang, Kaidian2,3; Wang, Lingui1; Su, Yilu1; Wang, Jierui3; Song, Tingting1; Yang, Xiaohong3; Tang, Jia4; Lin, Senjie2,3
发表期刊JOURNAL OF PHYCOLOGY
ISSN0022-3646
2021-05-08
页码12
关键词apoptosisheat stressnitrogen limitationstress responsesymbiodiniaceae
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.
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
收录类别SCI
语种英语
关键词[WOS]ELEVATED AMMONIUM; OXIDATIVE STRESS; HEAT-STRESS; SYMBIODINIUM; EUTROPHICATION; TRANSCRIPTOME; EXPRESSION; CYTOSCAPE; APOPTOSIS; RESPONSES
研究领域[WOS]Plant Sciences; Marine & Freshwater Biology
WOS记录号WOS:000648396800001
引用统计被引频次：2[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/27272
专题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.Hainan Univ, Coll Marine Sci, Hainan Aquaculture Breeding Engn Res Ctr, Haikou 570228, Hainan, Peoples R China
2.Univ Connecticut, Dept Marine Sci, Groton, CT 06340 USA
3.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361102, Fujian, Peoples R China
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Shandong, Peoples R China
推荐引用方式
GB/T 7714Zhou, 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.
APAZhou, 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.
MLAZhou, Zhi,et al."Nitrogen availability improves the physiological resilience of coral endosymbiont Cladocopium goreaui to high temperature".JOURNAL OF PHYCOLOGY (2021):12.
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