Glyphosate Accelerates the Proliferation of Microcystis aeruginosa, a Dominant Species in Cyanobacterial Blooms
Wang, Wenjing; Jiang, Ming; Sheng, Yanqing
Source PublicationENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
ISSN0730-7268
2021-02
Volume40Issue:2Pages:342-351
KeywordMicrocystis aeruginosa Microcystin Glyphosate Dissolved organic matter
DOI10.1002/etc.4942
AbstractGlyphosate is a commonly used herbicide known for its high performance in killing certain plants and grasses; however, its use is regulated due to its harmful effects on the aquatic environment. The present study investigated and compared the toxic mechanisms of glyphosate on Microcystis aeruginosa (a toxin-producing cyanobacterium) under 2 conditions: 0 parts per thousand saline media (experiment I) and 2.5 parts per thousand saline media (experiment II). The results indicated that an appropriate concentration of glyphosate provided a phosphate source for M. aeruginosa, resulting in an increased specific growth rate in both experimental groups compared with the controls. Glyphosate-enhanced alkaline phosphatase (ALP) activity increased by up to 1.37-fold in experiment I and 1.68-fold in experiment II. Moreover, the activities of superoxide dismutase (SOD) and catalase (CAT) decreased at glyphosate concentrations below 1.2 mg L-1 but increased at concentrations greater than 1.2 mg L-1 in experiment I, whereas SOD and CAT activities decreased in experiment II and declined by 64 and 49% in the 30 mg L-1 treatments. Furthermore, the transcript abundances of the pyruvate carboxylase (pcB), microcystin synthetase B (mcyB), and paired-like homeobox (phoX) genes were up-regulated by up to 6.92-, 3.63-, and 2.27-fold in experiment I and 6.74-, 6.55-, and 4.86-fold in experiment II after 96 h of incubation. The addition of glyphosate stimulated the production of dissolved organic matter including tryptophan-like substances, fulvic acid-like substances, (marine) humic acid-like substances, and microcystin-leucine-arginine in the culture. In conclusion, glyphosate stimulates the proliferation of M. aeruginosa and enhances the release of dissolved organic matter in saltwater ecosystems. Environ Toxicol Chem 2020;00:1-10. (c) 2020 SETAC
Funding OrganizationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31600370, 41373100] ; Science and Technology Plan of Yantai City [2018ZHGY080, 2018ZHGY083] ; Regional Key Project of STS of the Chinese Academy of Sciences [KFJ-STS-QYZX-057]
Indexed BySCI
Language英语
WOS KeywordEXTRACELLULAR POLYMERIC SUBSTANCES ; GROWTH ; RESPONSES ; PHOSPHORUS ; TOLERANCE ; TOXICITY ; WATER
WOS Research AreaEnvironmental Sciences & Ecology ; Toxicology
WOS IDWOS:000600758400001
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/30512
Collection中科院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心
AffiliationChinese Acad Sci, Res Ctr Coastal Environm Engn Technol Shandong Pr, Yantai Inst Coastal Zone Res, Yantai, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Wang, Wenjing,Jiang, Ming,Sheng, Yanqing. Glyphosate Accelerates the Proliferation of Microcystis aeruginosa, a Dominant Species in Cyanobacterial Blooms[J]. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY,2021,40(2):342-351.
APA Wang, Wenjing,Jiang, Ming,&Sheng, Yanqing.(2021).Glyphosate Accelerates the Proliferation of Microcystis aeruginosa, a Dominant Species in Cyanobacterial Blooms.ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY,40(2),342-351.
MLA Wang, Wenjing,et al."Glyphosate Accelerates the Proliferation of Microcystis aeruginosa, a Dominant Species in Cyanobacterial Blooms".ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 40.2(2021):342-351.
Files in This Item: Download All
File Name/Size DocType Version Access License
Glyphosate Accelerat(3598KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Wenjing]'s Articles
[Jiang, Ming]'s Articles
[Sheng, Yanqing]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Wenjing]'s Articles
[Jiang, Ming]'s Articles
[Sheng, Yanqing]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Wenjing]'s Articles
[Jiang, Ming]'s Articles
[Sheng, Yanqing]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Glyphosate Accelerates the Proliferation of Microcystis aeruginosa, a Dominant Species in Cyanobacterial Blooms.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.