Occurrence of the Ability to Suppress the Growth of Related Strains in Rhizobia

IF 1.3 4区生物学 Q4 MICROBIOLOGY

Microbiology Pub Date : 2023-11-28 DOI:10.1134/s0026261723602142

Al. Kh. Baymiev, A. A. Vladimirova, R. T. Matniyazov, A. M. Lavina, K. Yu. Filyaeva, E. S. Akimova, An. Kh. Baymiev

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Abstract—

Screening of 1019 strains of rhizobia Rhizobium leguminosarum and Neorhizobium galegae from the “Symbiont” collection of symbiotic rhizospheric microorganisms of the Institute of Biochemistry and Genetics, Ufa Research Center, Russian Academy of Sciences, which have been isolated from root nodules of 20 leguminous species, for the ability to suppress the growth of related strains of rhizobia was carried out. Inhibition of the growth of competing bacteria by rhizobia was shown to be rather common. On average, when grown on rich media, ~10% of rhizobial strains released antibacterial substances into the medium. At the same time, when a live culture of rhizobia was applied to the lawn of bacteria, the percentage of suppression was higher. The percentage of strains synthesizing antibacterial substances correlated also, to some extent, with the level of genetic diversity of the population of legume microsymbionts. A weak signal of impaired protein synthesis was found in the study of the mechanism of action of metabolites of 20 strains of rhizobia R. leguminosarum bv. viciae from root nodules of Lathyrus palustris and Lathyrus vernus. In other cases, the nature of the antibacterial action of bacterial metabolites could not be determined using the DualRep2 system.

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根瘤菌抑制相关菌株生长能力的研究

摘要/ abstract摘要:从俄罗斯科学院乌法研究中心生物化学与遗传研究所共生根际微生物“共生体”收集的20种豆科植物根瘤中分离出1019株根瘤菌leguminosarum和Neorhizobium galegae，进行根瘤菌抑制相关根瘤菌生长能力的筛选。根瘤菌对竞争菌生长的抑制是相当普遍的。平均而言，在富培养基上生长时，约10%的根瘤菌向培养基中释放抗菌物质。同时，在有细菌的草坪上施用根瘤菌活培养物，抑菌率更高。菌株合成抗菌物质的比例也与豆科微生物群体的遗传多样性水平有一定的相关性。对20株豆科根瘤菌代谢产物的作用机制进行了研究，发现了蛋白质合成受损的微弱信号。山竹和野山竹的根瘤所生的藤蔓。在其他情况下，细菌代谢物的抗菌作用性质无法使用DualRep2系统确定。

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来源期刊

Microbiology 生物-微生物学

CiteScore

2.40

自引率

13.30%

发文量

审稿时长

6-12 weeks

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.