{"title":"Screening and Application of Microorganisms That Inhibit Cyanobacteria Blooms","authors":"Yaqi Li, Honglian Luo, Shuang Zheng, Zhongchao Hao, Haikuan Wang* and Chengqi Liu*, ","doi":"10.1021/acsagscitech.3c00251","DOIUrl":null,"url":null,"abstract":"<p >Cyanobacterial blooms are a global ecological problem. The purpose of this study is to find microbial strains that can be used for the biological control of cyanobacterial blooms. In this study, a strain of <i>Lysinibacillus fusiformis</i> (QY-12) with the best algae inhibition effect was isolated and screened. The inhibition rate of <i>Microcystis aeruginosa</i> in the growth index period was 82.01% after 8 days of interference by QY-12. The algicidal substance <span>l</span>-2-aminoadipic acid (L-2-AA) produced by QY-12 was purified via preparative HPLC and identified by nuclear magnetic resonance (NMR), liquid chromatography-mass spectrometry (LC-MS) and infrared spectroscopy (IR). It was found by scanning electron microscopy that L-2-AA had a significant inhibitory effect on <i>Microcystis aeruginosa</i> in the early and middle stages of growth. This study provides a new idea for the prevention and control of cyanobacterial blooms.</p>","PeriodicalId":93846,"journal":{"name":"ACS agricultural science & technology","volume":"4 2","pages":"203–213"},"PeriodicalIF":2.3000,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS agricultural science & technology","FirstCategoryId":"1085","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsagscitech.3c00251","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Cyanobacterial blooms are a global ecological problem. The purpose of this study is to find microbial strains that can be used for the biological control of cyanobacterial blooms. In this study, a strain of Lysinibacillus fusiformis (QY-12) with the best algae inhibition effect was isolated and screened. The inhibition rate of Microcystis aeruginosa in the growth index period was 82.01% after 8 days of interference by QY-12. The algicidal substance l-2-aminoadipic acid (L-2-AA) produced by QY-12 was purified via preparative HPLC and identified by nuclear magnetic resonance (NMR), liquid chromatography-mass spectrometry (LC-MS) and infrared spectroscopy (IR). It was found by scanning electron microscopy that L-2-AA had a significant inhibitory effect on Microcystis aeruginosa in the early and middle stages of growth. This study provides a new idea for the prevention and control of cyanobacterial blooms.
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