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首页> 外文期刊>Biocontrol Science and Technology >Plant-growth-promoting traits and antifungal potential of the Bacillus amyloliquefaciens YL-25
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Plant-growth-promoting traits and antifungal potential of the Bacillus amyloliquefaciens YL-25

机译：解淀粉芽孢杆菌YL-25的促植物生长性状和抗真菌潜力

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摘要

Biological control of plant soil-borne diseases has been shown as an attractive and an environment friendly alternative to chemical fungicides. Different microbial strains have been reported effective in controlling plant pathogens. Among those, Bacillus strains have their own importance. Bacillus amyloliquefaciens strain YL-25, isolated from the rhizosphere of healthy banana plant, was evaluated as bioorganic fertiliser (BIO) for its ability to promote plant growth and suppress Fusarium wilt of banana in pot experiment. The results showed that the application of the BIO containing strain YL-25 significantly promoted the growth of banana plants and decreased the incidence of Fusarium wilt compared to the organic fertiliser and chemical fertiliser (CF). In order to explore the beneficial mechanisms of strain YL-25, experiments were conducted in vitro. The phytohormones including indole-3-acetic acid and gibberellin A3 and stable antifungal compounds three homologous of iturin A were identified in the culture broth of strain YL-25. The strain YL-25 also showed the ability to degrade extracellular phytate in plate experiment. Owing to its innate multiple functional traits and biocontrol activity, the strain YL-25 may be used as plant-growth-promoting rhizobacterium and biocontrol agent against Fusarium wilt of banana.
机译：已证明对植物土壤传播疾病的生物控制是化学杀真菌剂的一种有吸引力且对环境友好的替代方法。据报道，不同的微生物菌株可有效控制植物病原体。其中，芽孢杆菌菌株有其自身的重要性。从盆栽健康实验中，从健康香蕉植物的根际分离得到的解淀粉芽孢杆菌菌株YL-25作为生物有机肥料（BIO）被评估为生物有机肥料（BIO），具有促进植物生长和抑制香蕉枯萎的能力。结果表明，与有机肥料和化学肥料相比，含BIO菌株YL-25的施用显着促进了香蕉植物的生长，并降低了枯萎病的发生。为了探索菌株YL-25的有益机理，进行了体外实验。在菌株YL-25的培养液中鉴定出包括吲哚-3-乙酸和赤霉素A3的植物激素以及与Iturin A同源的三种稳定的抗真菌化合物。 YL-25菌株在平板实验中也显示出降解细胞外植酸的能力。由于其固有的多种功能特性和生物防治活性，YL-25菌株可以用作促进植物生长的根瘤菌和香蕉枯萎病的生物防治剂。

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