In Vitro Antagonistic Activity of Plant Growth Promoting Rhizobacteria Against Aggressive Biotypes of the Green Mold.

IF 3.5 4区 生物学 Q2 MICROBIOLOGY Journal of Basic Microbiology Pub Date : 2024-10-03 DOI:10.1002/jobm.202400422
Baran Mis, Kemal Karaca, Rengin Eltem
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Abstract

During the cultivation of button mushrooms, the green mold epidemic, which causes a decrease in productivity, is a very important problem. The environmental harm of chemicals used in the control of such epidemics and the demand of consumers for organic products without chemicals have brought environmentally friendly biological control to the fore. Biological control can be achieved by the use of antagonistic microorganisms and their metabolites. In this study, the effectiveness of Bacillus spp. and Pseudomonas spp. for the biological control of the aggressive biotypes of the green mold disease agent Trichoderma aggressivum strains was examined in vitro. For this purpose, the antifungal effects of Bacillus spp. and Pseudomonas spp. against T. aggressivum strains were examined by in vitro dual culture test. Afterward, the antifungal activity of Bacillus spp. metabolites was assessed further using the agar well diffusion method. Then, it was determined whether the bacterial strains showing antifungal activity showed antagonistic activity against A. bisporus. Although none of the Pseudomonas spp. showed antifungal activity against T. aggressivum strains, most of the Bacillus spp. were found to have high activity. It has been concluded that Bacillus sp. Ö-4-82 may be potential biological control agent for button mushroom cultivation.

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植物生长促进根瘤菌对绿霉菌侵袭性生物类型的体外拮抗活性。
在金针菇的种植过程中,导致产量下降的绿色霉菌流行病是一个非常重要的问题。用于控制此类疫病的化学品对环境的危害以及消费者对不含化学品的有机产品的需求,使环境友好型生物防治成为人们关注的焦点。生物防治可以通过使用拮抗微生物及其代谢产物来实现。本研究在体外检测了芽孢杆菌属和假单胞菌属对绿霉病菌侵袭性生物型的生物防治效果。为此,通过体外双重培养试验检测了芽孢杆菌属和假单胞菌属对侵袭性毛霉菌株的抗真菌作用。随后,使用琼脂井扩散法进一步评估了枯草杆菌代谢物的抗真菌活性。然后,确定具有抗真菌活性的细菌菌株是否对双孢蘑菇具有拮抗活性。虽然没有假单胞菌属对侵袭性蘑菇菌株表现出抗真菌活性,但发现大多数芽孢杆菌属都具有很高的活性。结论是芽孢杆菌 Ö-4-82 可能是金针菇栽培中潜在的生物防治剂。
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来源期刊
Journal of Basic Microbiology
Journal of Basic Microbiology 生物-微生物学
CiteScore
6.10
自引率
0.00%
发文量
134
审稿时长
1.8 months
期刊介绍: The Journal of Basic Microbiology (JBM) publishes primary research papers on both procaryotic and eucaryotic microorganisms, including bacteria, archaea, fungi, algae, protozoans, phages, viruses, viroids and prions. Papers published deal with: microbial interactions (pathogenic, mutualistic, environmental), ecology, physiology, genetics and cell biology/development, new methodologies, i.e., new imaging technologies (e.g. video-fluorescence microscopy, modern TEM applications) novel molecular biology methods (e.g. PCR-based gene targeting or cassettes for cloning of GFP constructs).
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