{"title":"Effect of O-Polysaccharide Modifications on Successful Plant Colonization by Bacteria","authors":"G. L. Burygin, A. A. Khanina, M. V. Filippova","doi":"10.1134/s0026261723604207","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">\n<b>Abstract</b>\n</h3><p>O-polysaccharides of gram-negative bacteria are a highly variable component of the lipopolysaccharide molecules located at the cell wall surface and involved in microbial interaction with plant and animal cells. Activity of prophage genes often results in various non-stoichiometric modifications (methylation, acetylation, etc.) of glycans on the bacterial cell surface. The share of modified O-polysaccharides increases during the stationary growth phase and results in increased hydrophobicity of microbial surface. Bacterial cells with different hydrophobicity showed difference in attachment to plant roots. Increased cell hydrophobicity index was found to result in a significant increase in the number of adsorbed microorganisms per unit root length. Thus, acetyl transferase and methyl transferase genes of viral origin may be indirectly involved in successful colonization of plant roots by rhizosphere bacteria.</p>","PeriodicalId":18514,"journal":{"name":"Microbiology","volume":"49 1","pages":""},"PeriodicalIF":1.3000,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microbiology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1134/s0026261723604207","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MICROBIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
O-polysaccharides of gram-negative bacteria are a highly variable component of the lipopolysaccharide molecules located at the cell wall surface and involved in microbial interaction with plant and animal cells. Activity of prophage genes often results in various non-stoichiometric modifications (methylation, acetylation, etc.) of glycans on the bacterial cell surface. The share of modified O-polysaccharides increases during the stationary growth phase and results in increased hydrophobicity of microbial surface. Bacterial cells with different hydrophobicity showed difference in attachment to plant roots. Increased cell hydrophobicity index was found to result in a significant increase in the number of adsorbed microorganisms per unit root length. Thus, acetyl transferase and methyl transferase genes of viral origin may be indirectly involved in successful colonization of plant roots by rhizosphere bacteria.
摘要革兰氏阴性细菌的O-多糖是位于细胞壁表面的脂多糖分子的一个高度可变成分，参与微生物与动植物细胞的相互作用。噬菌体基因的活性通常会导致细菌细胞表面的聚糖发生各种非均一修饰（甲基化、乙酰化等）。在静止生长阶段，修饰 O 型多糖的比例会增加，从而导致微生物表面的疏水性增加。不同疏水性的细菌细胞对植物根系的附着力也不同。研究发现，细胞疏水性指数增加会导致单位根长吸附的微生物数量显著增加。因此，病毒源乙酰转移酶和甲基转移酶基因可能间接参与了根瘤菌在植物根部的成功定殖。
期刊介绍：
Microbiology is an is an international peer reviewed journal that covers a wide range of problems in the areas of fundamental and applied microbiology. The journal publishes experimental and theoretical papers, reviews on modern trends in different fields of microbiological science, and short communications with descriptions of unusual observations. The journal welcomes manuscripts from all countries in the English or Russian language.
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