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Antioxidant responses to hyperosmolarity stress in the intertidal Pyropia yezoensis (Bangiales, Rhodophyta)
Yu, Bin1,4; Yang, Jiali1,4; Niu, Jianfeng1,2,3; Wang, Guangce1,2,3
2020-06-01
Source PublicationALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
ISSN2211-9264
Volume48Pages:9
Corresponding AuthorNiu, Jianfeng(jf_niu@qdio.ac.cn) ; Wang, Guangce(jcwang@qdio.ac.cn)
AbstractPyropia 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.
KeywordPyropia yezoensis Antioxidant enzyme Antioxidant Antioxidative defense mechanism Environmental acclimation
DOI10.1016/j.algal.2020.101930
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaBiotechnology & Applied Microbiology
WOS SubjectBiotechnology & Applied Microbiology
WOS IDWOS:000539272500013
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167688
Collection实验海洋生物学重点实验室
Corresponding AuthorNiu, Jianfeng; Wang, Guangce
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
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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