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Insights into response of seagrass (Zostera marina) to sulfide exposure at morphological, physiochemical and molecular levels in context of coastal eutrophication and warming

文献类型：期刊论文

作者Zhang, Yu1,3,4,6,9,10; Yue, Shidong1,3,4,6,9,10; Gao, Yaping5; Zhao, Peng8; Liu, Mingjie1,3,4,6,9,10; Qiao, Yongliang7; Xu, Shaochun1,3,4,6,9,10; Gu, Ruiting2; Zhang, Xiaomei1,3,4,6,9,10; Zhou, Yi1,3,4,6,9,10
刊名PLANT CELL AND ENVIRONMENT
出版日期2024-07-30
页码18
关键词ecotoxicity eelgrass hypoxia resilience restoration
ISSN号0140-7791
DOI10.1111/pce.15048
通讯作者Zhang, Xiaomei(zhangxiaomei@qdio.ac.cn) ; Zhou, Yi(yizhou@qdio.ac.cn)
英文摘要Sulfide in sediment porewaters, is toxic to rooted macrophytes in both marine and freshwater environments. Current research on sulfide stress in seagrasses primarily focuses on morphological and physiological aspects, with little known about the molecular response and resistance mechanisms. This study first investigated the damage caused by sulfide to eelgrass (Zostera marina L.) using transcriptomic, metabolomic, and other physiological and biochemical indicators and explored the potential resistance of eelgrass at molecular level through laboratory simulated and in-situ sulfide stress experiments. Comprehensive results showed that sulfide stress severely inhibited the growth, photosynthesis, and antioxidant enzyme activities of eelgrass. Importantly, transcriptome analysis revealed significant activation of pathways related to carbohydrate and sulfur metabolism. This activation served a dual purpose: providing an energy source for eelgrass stress response and achieving detoxification through accelerated sulfur metabolism-a potential resistance mechanism. The toxicity of sulfide increased with rising temperature as evidenced by a decrease in EC50. Results from recovery experiments indicated that when Fv/Fm reduced to about 0 under sulfide stress, the growth and photosynthesis of eelgrass recovered to normal level after timely removal of sulfide. However, prolonged exposure to sulfide resulted in failure to recover, leading ultimately to plant death. This study not only enhances our understanding of the molecular-level impacts of sulfide on seagrasses but also provides guidance for the management and ecological restoration of seagrass meadows under sulfide stress.
WOS关键词DIE-OFF EVENTS ; THALASSIA-TESTUDINUM ; SEDIMENT SULFIDE ; FLORIDA BAY ; HEAT WAVES ; INTRUSION ; STRESS ; SULFUR ; ARABIDOPSIS ; IRON
资助项目The National Natural Science Foundation of China[32270405/42206142/32000269/41606192] ; National Key R&D Program of China[2022YFC3105403] ; Natural Science Foundation of Shandong Province[SDCX-ZG202201018/ZR2020QD106] ; Taishan Scholars Program
WOS研究方向Plant Sciences
语种英语
WOS记录号WOS:001280279900001
出版者WILEY
源URL[http://ir.qdio.ac.cn/handle/337002/186138]  
专题海洋研究所_海洋生态与环境科学重点实验室
通讯作者Zhang, Xiaomei; Zhou, Yi
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.East China Normal Univ, Shanghai, Peoples R China
3.Shandong Prov Key Lab Expt Marine Biol, Qingdao, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
5.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Sustainable Dev Marine Fisheries, Minist Agr, Qingdao, Peoples R China
6.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China
7.Qingdao Univ Sci & Technol, Qingdao, Peoples R China
8.Hainan Univ, State Key Lab Marine Resource Utilizat South China, Haikou, Peoples R China
9.Minist Nat Resources, Field Sci Observat Res Stn Yellow Bohai Sea Temper, Qingdao, Peoples R China
10.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Yu,Yue, Shidong,Gao, Yaping,et al. Insights into response of seagrass (Zostera marina) to sulfide exposure at morphological, physiochemical and molecular levels in context of coastal eutrophication and warming[J]. PLANT CELL AND ENVIRONMENT,2024:18.
APA Zhang, Yu.,Yue, Shidong.,Gao, Yaping.,Zhao, Peng.,Liu, Mingjie.,...&Zhou, Yi.(2024).Insights into response of seagrass (Zostera marina) to sulfide exposure at morphological, physiochemical and molecular levels in context of coastal eutrophication and warming.PLANT CELL AND ENVIRONMENT,18.
MLA Zhang, Yu,et al."Insights into response of seagrass (Zostera marina) to sulfide exposure at morphological, physiochemical and molecular levels in context of coastal eutrophication and warming".PLANT CELL AND ENVIRONMENT (2024):18.

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来源：海洋研究所

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