Antioxidant responses to hyperosmolarity stress in the intertidal Pyropia yezoensis (Bangiales, Rhodophyta)

doi:10.1016/j.algal.2020.101930

IOCAS-IR > 实验海洋生物学重点实验室

	Antioxidant responses to hyperosmolarity stress in the intertidal Pyropia yezoensis (Bangiales, Rhodophyta)
	Yu, Bin 1,4; Yang, Jiali 1,4; Niu, Jianfeng 1,2,3; Wang, Guangce 1,2,3
	2020-06-01
发表期刊	ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
ISSN	2211-9264
卷号	48 页码:9
通讯作者	Niu, Jianfeng(jf_niu@qdio.ac.cn) ; Wang, Guangce(jcwang@qdio.ac.cn)
摘要	Pyropia yezoensis (P. yezoensis) is an intertidal alga that periodically experiences environmental stress with turning fides. Both the antioxidases and the antioxidants are involved in the acclimation to the extremely variable intertidal environments. Here, mild (50 parts per thousand), moderate (90 parts per thousand), and severe (120 parts per thousand) high-salinity stress treatments were designed to investigate protective mechanisms against reactive oxygen species (ROS). Results showed that hydrogen peroxide (H2O2) content in high-salinity stressed samples was maintained at levels similar to or lower than that of the control. Superoxide dismutase (SOD) activity was up-regulated in samples treated with severe high-salinity and sustained stress with moderate high-salinity. Catalase (CAT) activity increased at the start of the experiment but decreased after 2 h of stress treatment. Reduced ascorbate (AsA) was up-regulated under high-salinity conditions, and AsA-dependent antioxidant enzymes played a more important role in the mild and moderate high-salinity stress treatments. While, reduced glutathione (GSH)-mediated antioxidant reactions became the most important as salinity increased to 120 parts per thousand. Moreover, the rapid glutathione up-regulation during the initial stage of stress treatments demonstrated that GSH is essential in the scavenging of instantaneous ROS bursts. GSH was also suggested to be a central intermediate molecule involved in multiple oxidative stress response pathways. The results obtained here will do benefits to the breeding of P. yezoensis.
关键词	Pyropia yezoensis Antioxidant enzyme Antioxidant Antioxidative defense mechanism Environmental acclimation
DOI	10.1016/j.algal.2020.101930
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41776150] ; National Natural Science Foundation of China[41476140] ; National Natural Science Foundation of China[System-50] ; China National Key Research and Development Plan Project[2016YFC1400600]
WOS研究方向	Biotechnology & Applied Microbiology
WOS类目	Biotechnology & Applied Microbiology
WOS记录号	WOS:000539272500013
出版者	ELSEVIER
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/167688
专题	实验海洋生物学重点实验室
通讯作者	Niu, Jianfeng; Wang, Guangce
作者单位	1.Chinese Acad Sci IOCAS, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Biol & Biotechnol, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Yu, Bin,Yang, Jiali,Niu, Jianfeng,et al. Antioxidant responses to hyperosmolarity stress in the intertidal Pyropia yezoensis (Bangiales, Rhodophyta)[J]. ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,2020,48:9.
APA	Yu, Bin,Yang, Jiali,Niu, Jianfeng,&Wang, Guangce.(2020).Antioxidant responses to hyperosmolarity stress in the intertidal Pyropia yezoensis (Bangiales, Rhodophyta).ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,48,9.
MLA	Yu, Bin,et al."Antioxidant responses to hyperosmolarity stress in the intertidal Pyropia yezoensis (Bangiales, Rhodophyta)".ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS 48(2020):9.

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