对引起水果和蔬菜软腐病的微生物果胶溶解植物病原体的生物防治。

IF 3.5 4区 生物学 Q2 MICROBIOLOGY Journal of Basic Microbiology Pub Date : 2024-10-03 DOI:10.1002/jobm.202400342
Benaissa Asmaa, Bestami Merdia, Fellan Kheira, Ben Malek Rokaia, Djellout Nadine Chahrazade
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引用次数: 0

摘要

采取适当措施防止导致水果和蔬菜腐烂的植物病原体传播至关重要。从这个角度出发,我们评估了五种芽孢杆菌-植物生长促进根瘤菌(PGPR)菌株对 21 种导致水果和蔬菜软腐病的果胶溶性植物病原体的生物防治潜力。以前曾对这些植物病原体进行过研究。为实现这一目标,采用了三种体外方法:竞争法、生物活性物质提取法和直接对抗法。直接对抗法的抑制效果使 11 种微生物植物病原体的生长速度减慢。此外,研究还注意到 11 株植物病原体产生了抑制成分,而 15 株植物病原体则产生了诱导性抑制物质。此外,在 6 株受测菌株中还检测到了挥发性抑制化合物。总体而言,PGPR-芽孢杆菌菌株对植物病原体具有很强的抗真菌和抗细菌特性。这些 PGPR 菌株可被视为水果和蔬菜软腐微生物的潜在生物控制剂,以及有效抑制植物病害的物质生产者。
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Biological Control of Microbial Pectinolytic Plant Pathogens Causing Soft Rot of Fruits and Vegetables.

It is crucial to implement appropriate measures to prevent the spread of plant pathogens that lead to the decay of fruits and vegetables. From this perspective, we evaluated the biocontrol potential of five Bacillus-plant growth promoting rhizobacteria (PGPR) strains against twenty-one pectinolytic phytopathogens causing soft rot in fruits and vegetables. These phytopathogens had been previously studied. Three in vitro methods were utilized to accomplish this objective: competition, extraction of bioactive substances, and direct confrontation. The inhibitory effect of the direct confrontation method resulted in a slower growth of 11 microbial plant pathogens. In addition, it was noted that 11 strains of plant pathogens generated inhibitory constituents, while 15 plant pathogens produced inducible inhibitory substances. Furthermore, volatile inhibitory compounds were detected in the six tested strains. Overall, strains of PGPR-Bacillus demonstrated strong antifungal and antibacterial properties against phytopathogens. These PGPR can be regarded as potential biocontrol agents for soft microbial rot in fruits and vegetables as well as producers of substances that effectively suppress plant diseases.

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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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