Institutional Repository of Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
| 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 Publication | ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
 |
| ISSN | 2211-9264 |
| Volume | 48Pages:9 |
| Corresponding Author | Niu, Jianfeng(jf_niu@qdio.ac.cn) ; Wang, Guangce(jcwang@qdio.ac.cn) |
| Abstract | 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. |
| Keyword | Pyropia yezoensis Antioxidant enzyme Antioxidant Antioxidative defense mechanism Environmental acclimation |
| DOI | 10.1016/j.algal.2020.101930 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Biotechnology & Applied Microbiology |
| WOS Subject | Biotechnology & Applied Microbiology |
| WOS ID | WOS:000539272500013 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/167688 |
| Collection | 实验海洋生物学重点实验室 |
| Corresponding Author | Niu, Jianfeng; Wang, Guangce |
| Affiliation | 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 |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute 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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| Antioxidant response（2095KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View | |
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