Eskişehir Technical University, Institute of Graduate Programs, Biology Department, 26470, Eskişehir, Turkey.
Eskişehir Technical University, Faculty of Science, Biology Department, 26470, Eskişehir, Turkey.
Microb Pathog. 2020 Jun;143:104134. doi: 10.1016/j.micpath.2020.104134. Epub 2020 Mar 10.
Soil actinomycetes are a highly common group of bacteria and frequently studied as having secondary metabolites in the potential of producing the most preferred antagonistic content. Considering the continuous variation in soil structure, there is a potential for encountering different organisms. Almost all of antibiotic contents are produced by these bacteria and their importance increase. In this study, eleven different actinomycetes strain were isolated from the rhizosphere of olive trees investigated for their plant growth-promoting (PGP) traits including ammonia production, indole-3-acetic acid production, phosphate solubilization, and siderophore production with antagonistic activities against a set of pathogenic bacteria, fungi, and yeasts. All actinomycetes were identified according to 16S rRNA regions were recognized in four different Streptomyces species but according to fatty acid analysis, there would be at least six different organisms. The potential for antagonistic and plant growth-promoting traits of olive tree rhizosphere actinomycetes were a promising tool for agricultural applications and clinical antibiotic resistance. Differentiation of organisms with the antagonism of pathogenic activities and PGP features could be a definitive method for future studies.
土壤放线菌是一类非常常见的细菌，经常被研究作为具有产生最理想拮抗物质的潜力的次生代谢物。考虑到土壤结构的持续变化，有可能遇到不同的生物体。几乎所有的抗生素含量都是由这些细菌产生的，它们的重要性不断增加。在这项研究中，从橄榄树的根际中分离出了 11 种不同的放线菌菌株，它们具有植物促生（PGP）特性，包括氨的产生、吲哚-3-乙酸的产生、磷酸盐的溶解和铁载体的产生，同时对一组病原菌、真菌和酵母具有拮抗活性。所有的放线菌都是根据 16S rRNA 区域识别出来的，它们被分为四个不同的链霉菌种，但根据脂肪酸分析，至少有六个不同的生物体。橄榄树根际放线菌的拮抗和植物促生特性的潜力是农业应用和临床抗生素耐药性的有前途的工具。具有拮抗作用和 PGP 特征的生物体的分化可能是未来研究的一种明确方法。
