Composition and regulation of thylakoid membrane of Antarctic ice microalgae Chlamydomonas sp ICE-L in response to low-temperature environment stress

doi:10.1017/S0025315416000588

	Composition and regulation of thylakoid membrane of Antarctic ice microalgae Chlamydomonas sp ICE-L in response to low-temperature environment stress
	Wang Yi-Bin 1,2; Liu Fang-Ming 1,2; Zhang Xiu-Fang 3; Zhang Ai-Jun 1,2; Wang Bin 1,2; Zheng Zhou 1,2; Sun Cheng-Jun 1; Miao Jin-Lai 1,2
刊名	JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM
	2017-09
卷号	97 期号:6 页码:1241-1249
关键词	Antarctic ice microalgae Chlamydomonas sp. chloroplast thylakoid membrane cold stress response
ISSN号	0025-3154
DOI	10.1017/S0025315416000588
英文摘要	Ice algae have successfully adapted to the extreme environmental conditions in the Antarctic, however the underlying mechanisms involved in the regulation and response of thylakoid membranes and chloroplast to low-temperature stress are still not well understood. In this study, changes in pigment concentrations, lipids, fatty acids and pigment protein complexes in thylakoid membranes and chloroplast after exposure to low temperature conditions were investigated using the Antarctic ice algae Chlamydomonas sp. ICE-L. Results showed that the chloroplasts of Chlamydomonas sp. ICE-L are distributed throughout the cell except in the nuclear region in the form of thylakoid lamellas which exists in the gap between organelles and the starch granules. Also, the structure of mitochondria has no obvious change after cold stress. Concentrations of Chl a, Chl b, monogalactosyl diacylglycerol, digalactosyl diacylglycerol and fatty acids were also observed to exhibit changes with temperature, suggesting possible adaptations to cold environments. The light harvesting complex, lutein and b-carotene played an important role for adaptation of ICE-L, and increasing of monogalactosyl diacylglycerol and digalactosyl diacylglycerol improved the overall degree of unsaturation of thylakoid membranes, thereby maintaining liquidity of thylakoid membranes. The pigments, lipids, fatty acids and pigment-protein complexes maintained the stability of the thylakoid membranes and the normal physiological function of Chlamydomonas sp. ICE-L.
资助项目	Science and Technology Planning Project of Shandong Province[2014GHY115003]
WOS关键词	SEA-ICE ; GROWTH ; ALGAE ; MICROORGANISMS ; CHLOROPLASTS ; ORGANIZATION ; ADAPTATION ; RAUDENSIS
WOS研究方向	Marine & Freshwater Biology
语种	英语
出版者	CAMBRIDGE UNIV PRESS
WOS记录号	WOS:000426420100005
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/27146]
专题	自然资源部第一海洋研究所
通讯作者	Wang Yi-Bin; Miao Jin-Lai
作者单位	1.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.SOA, Key Lab Marine Bioact Subst, Qingdao 266061, Peoples R China 3.Qingdao Hiser Hosp, Qingdao 266033, Peoples R China
推荐引用方式 GB/T 7714	Wang Yi-Bin,Liu Fang-Ming,Zhang Xiu-Fang,et al. Composition and regulation of thylakoid membrane of Antarctic ice microalgae Chlamydomonas sp ICE-L in response to low-temperature environment stress[J]. JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM,2017,97(6):1241-1249.
APA	Wang Yi-Bin.,Liu Fang-Ming.,Zhang Xiu-Fang.,Zhang Ai-Jun.,Wang Bin.,...&Miao Jin-Lai.(2017).Composition and regulation of thylakoid membrane of Antarctic ice microalgae Chlamydomonas sp ICE-L in response to low-temperature environment stress.JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM,97(6),1241-1249.
MLA	Wang Yi-Bin,et al."Composition and regulation of thylakoid membrane of Antarctic ice microalgae Chlamydomonas sp ICE-L in response to low-temperature environment stress".JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM 97.6(2017):1241-1249.