气候变化领域集成服务门户(CCPortal): Effect of low-salt on the survival of mussel Mytilus coruscus and its molecular responses to chronic prolonged low-salt stress

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DOI	10.1016/j.aquaculture.2024.740689
	Effect of low-salt on the survival of mussel Mytilus coruscus and its molecular responses to chronic prolonged low-salt stress
	Xiong, Xinwei; Quan, Feng; Zhang, Yu; Cao, Yanfei; Zhang, Keqian; Li, Weiye; Luo, Haizhong; Jia, Yanglei; Liao, Zhi; Liu, Xiao
发表日期	2024
ISSN	0044-8486
EISSN	1873-5622
起始页码	585
卷号	585
英文摘要	Mussel Mytilus coruscus is a coastal economic culture species. However, massive mortalities associated with lowsalt environments caused by persistent rainfall and freshwater inflow threaten its development. Herein, we examined its survival under different low-salt conditions. The survival rate of umbo and eyed larvae significantly decreased with the decline in salinity or prolonged stress time. The umbo larvae were more tolerant to low-salt stress than the eyed larvae. When the salinity levels dropped suddenly, the adults could not survive below 16%o salinity, and their survival rate decreased faster with the increase in salinity span or the decrease in final stress salinity. However, the adults could tolerate a lower salinity levels when it dropped slowly, and their low-salt tolerance limit was 10%o. Therefore, mussel M. coruscus could adapt to a lower salinity only when the salinity levels dropped gradually. We also explored the physiological and adaptive responses of the foot in response to chronic prolonged low-salt stress by transcriptome analysis. We found that most genes in the calcium ion binding term and the osmoregulation-related genes were significantly induced in the salt 12 and 14 groups, suggesting the strong positive response in calcium signal transduction and osmoregulation under prolonged lowsalt stress. The HSP70 and IAP genes were upregulated, suggesting that mussel M. coruscus protects itself from low-salt environments by inhibiting apoptosis. The cytoskeleton and cell cycle were inhibited, and the byssus attachment-related genes, such as tyrosinase and foot-protein genes, were suppressed, suggesting a negative response of cell division and byssus thread attachment during prolonged low-salt stress. The enhancement of carbohydrate metabolism indicated its positive role in maintaining energy homeostasis during prolonged low-salt stress. Our findings contribute to the improvement of culture technology and the guidance of selective breeding program for mussel M. coruscus and enhance our understanding of low-salt adaptation mechanism.
英文关键词	Mytilus coruscus; Low -salt stress; Survival rate; Adaptive responses
语种	英语
WOS研究方向	Fisheries ; Marine & Freshwater Biology
WOS类目	Fisheries ; Marine & Freshwater Biology
WOS记录号	WOS:001197398200001
来源期刊	AQUACULTURE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304628
作者单位	Zhejiang Ocean University
推荐引用方式 GB/T 7714	Xiong, Xinwei,Quan, Feng,Zhang, Yu,et al. Effect of low-salt on the survival of mussel Mytilus coruscus and its molecular responses to chronic prolonged low-salt stress[J],2024,585.
APA	Xiong, Xinwei.,Quan, Feng.,Zhang, Yu.,Cao, Yanfei.,Zhang, Keqian.,...&Liu, Xiao.(2024).Effect of low-salt on the survival of mussel Mytilus coruscus and its molecular responses to chronic prolonged low-salt stress.AQUACULTURE,585.
MLA	Xiong, Xinwei,et al."Effect of low-salt on the survival of mussel Mytilus coruscus and its molecular responses to chronic prolonged low-salt stress".AQUACULTURE 585(2024).