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Investigating the molecular mechanisms of Pseudalteromonas sp. LD-B1 ' s algicidal effects on the harmful alga Heterosigma akashiwo

文献类型：期刊论文

作者Xu, Mingyang3,4; Chen, Yujiao3,4; Chen, Lei3,4; Chen, Yifan3,4; Yin, Xueyao3,4; Ji, Nanjing1,2,3,4; Cai, Yuefeng3,4; Sun, Song1; Shen, Xin3,4
刊名ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
出版日期2024-09-01
卷号282页码:10
关键词Pseudalteromonas sp. LD-B1 Heterosigma akashiwo Algicidal effects Transcriptomic analysis
ISSN号0147-6513
DOI10.1016/j.ecoenv.2024.116690
通讯作者Ji, Nanjing(jinanjing@126.com) ; Shen, Xin(shenthin@163.com)
英文摘要Heterosigma akashiwo is a harmful algal bloom species that causes significant detrimental effects on marine ecosystems worldwide. The algicidal bacterium Pseudalteromonas sp. LD-B1 has demonstrated potential effectiveness in mitigating these blooms. However, the molecular mechanisms underlying LD-B1's inhibitory effects on H. akashiwo remain poorly understood. In this study, we employed the comprehensive methodology, including morphological observation, assessment of photosynthetic efficiency (Fv/Fm), and transcriptomic analysis, to investigate the response of H. akashiwo to LD-B1. Exposure to LD-B1 resulted in a rapid decline of H. akashiwo's Fv/Fm ratio, with cells transitioning to a rounded shape within 2 hours, subsequently undergoing structural collapse and cytoplasmic leakage. Transcriptomic data revealed sustained downregulation of photosynthetic genes, indicating impaired functionality of the photosynthetic system. Additionally, genes related to the respiratory electron transfer chain and antioxidant defenses were consistently downregulated, suggesting prolonged oxidative stress beyond the cellular antioxidative capacity. Notably, upregulation of autophagyrelated genes was observed, indicating autophagic responses in the algal cells. This study elucidates the molecular basis of LD-B1's algicidal effects on H. akashiwo, advancing our understanding of algicidal mechanisms and contributing to the development of effective strategies for controlling harmful algal blooms.
WOS关键词OXIDATIVE STRESS ; ELECTRON-TRANSPORT ; CELL-DEATH ; GENERATION ; MACHINERY ; AUTOPHAGY ; CHAIN ; GENE
资助项目Science and Technology Innovation Fund (JASTIF)[CX (22) 2032] ; Natural Science Foundation of China[42006135] ; Lianyungang Postdoctoral Science Foundation[ZKK2021021] ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
WOS研究方向Environmental Sciences & Ecology ; Toxicology
语种英语
WOS记录号WOS:001268381900001
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
源URL[http://ir.qdio.ac.cn/handle/337002/186215]  
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Ji, Nanjing; Shen, Xin
作者单位1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.Jiangsu Marine Resources Dev Res Inst, Lianyungang 222005, Peoples R China
3.Jiangsu Ocean Univ, Coinnovat Ctr Jiangsu Marine Bioind Technol, Lianyungang 222005, Peoples R China
4.Jiangsu Ocean Univ, Jiangsu Key Lab Marine Bioresources & Environm, Jiangsu Key Lab Marine Biotechnol, Lianyungang 222005, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Mingyang,Chen, Yujiao,Chen, Lei,et al. Investigating the molecular mechanisms of Pseudalteromonas sp. LD-B1 ' s algicidal effects on the harmful alga Heterosigma akashiwo[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2024,282:10.
APA Xu, Mingyang.,Chen, Yujiao.,Chen, Lei.,Chen, Yifan.,Yin, Xueyao.,...&Shen, Xin.(2024).Investigating the molecular mechanisms of Pseudalteromonas sp. LD-B1 ' s algicidal effects on the harmful alga Heterosigma akashiwo.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,282,10.
MLA Xu, Mingyang,et al."Investigating the molecular mechanisms of Pseudalteromonas sp. LD-B1 ' s algicidal effects on the harmful alga Heterosigma akashiwo".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 282(2024):10.

入库方式： OAI收割

来源：海洋研究所

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