Strategies of NaCl Tolerance in Saline-Alkali-Tolerant Green Microalga <i>Monoraphidium dybowskii</i> LB50

doi:10.3390/plants12193495

	*Strategies of NaCl Tolerance in Saline-Alkali-Tolerant Green Microalga Monoraphidium dybowskii* LB50**
	Yang, Haijian 1; Zhang, Jing 2; Li, Hua 1
刊名	PLANTS-BASEL
	2023-10-01
卷号	12 期号:19 页码:22
关键词	NaCl tolerance Monoraphidium dybowskii LB50 triacylglycerol proteomic carbon partitioning
DOI	10.3390/plants12193495
通讯作者	Li, Hua(lih@ihb.ac.cn)
英文摘要	Studying how freshwater cells modify metabolism and membrane lipids in response to salt stress is important for understanding how freshwater organisms adapt to salt stress and investigating new osmoregulatory ways. Physiological, biochemical, metabolic, and proteomic analyses were applied in a novel saline-alkali-tolerant microalga Monoraphidium dybowskii LB50 under different NaCl concentrations. Cells adopt a variety of strategies to adapt to salt stress, including increasing ion transport and osmolytes, regulating cell cycle and life history, and accumulating triacylglycerol (TAG). A large number of metabolic activities point to TAG accumulation. With increasing NaCl concentration, the C resource for TAG accumulation went from photosynthetically fixed C and a small amount of lipid remodeling to macromolecule degradation and a mass of lipid remodeling, respectively. The energy for TAG accumulation went from linear electron transfer and oxidative phosphate pentose pathway to cyclic electron flow, substrate phosphorylation, oxidation phosphorylation, and FA oxidation. Additionally, digalacturonic acid and amino acids of the N-acetyl group, which usually were the osmotica for marine organisms, were important for M. dybowskii LB50. Freshwater organisms evolved many biological ways to adapt to salt stress. This insight enriches our understanding of the adaptation mechanisms underlying abiotic stress.
WOS关键词	NEUTRAL LIPID-ACCUMULATION ; CYCLIC ELECTRON FLOW ; ACID BETA-OXIDATION ; CHLAMYDOMONAS-REINHARDTII ; NITROGEN DEPRIVATION ; SALT-STRESS ; FATTY-ACID ; TRIACYLGLYCEROL ACCUMULATION ; CHLORELLA-VULGARIS ; COMPATIBLE SOLUTES
WOS研究方向	Plant Sciences
语种	英语
WOS记录号	WOS:001084937500001
资助机构	We are indebted to Xudong Xu (IHB, CAS) for providing us with the microalgal strain. We also thank Xiantao Fang for their help in the analytical work. Moreover, we express our gratitude to Yuan Xiao, Yanxia Zuo, Zhengfei Xing, and Fang Zhou at the Testing
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/34825]
专题	中国科学院烟台海岸带研究所
通讯作者	Li, Hua
作者单位	1.Chinese Acad Sci, Key Lab Algal Biol, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, Anal & Testing Ctr, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Yang, Haijian,Zhang, Jing,Li, Hua. Strategies of NaCl Tolerance in Saline-Alkali-Tolerant Green Microalga Monoraphidium dybowskii LB50[J]. PLANTS-BASEL,2023,12(19):22.
APA	Yang, Haijian,Zhang, Jing,&Li, Hua.(2023).Strategies of NaCl Tolerance in Saline-Alkali-Tolerant Green Microalga Monoraphidium dybowskii LB50.PLANTS-BASEL,12(19),22.
MLA	Yang, Haijian,et al."Strategies of NaCl Tolerance in Saline-Alkali-Tolerant Green Microalga Monoraphidium dybowskii LB50".PLANTS-BASEL 12.19(2023):22.