Enhancing Growth in Vigna radiata through the Inhibition of Charcoal Rot Disease: A Strategic Approach Using Plant Growth-Promoting Rhizobacteria
文献类型： 外文期刊
作者： Khan, Imran 1 ; Mohyuddin, Sahar Ghulam 2 ; Sohail, Shah 3 ; Zaman, Shah 3 ; Qadir, Muhammad 4 ; Guo, Juxian 1 ; Li, Guihua 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Vegetable Res Inst, Guangdong Key Lab New Technol Res Vegetables, Guangzhou 510642, Peoples R China
2.Yangzhou Univ, Coll Anim Sci & Technol, Yangzhou 225009, Peoples R China; Yangzhou Univ, Coll Biosci & Biotechnol, Yangzhou 225009, Peoples R China
3.Univ Malakand KPK, Dept Bot, Chakdara 18800, Pakistan
4.Abdul Wali Khan Univ Mardan, Dept Bot, Mardan 23200, Pakistan
关键词： biocontrol agents; biofertilizers; Macrophomina phaseolina; PGPR; Vigna radiata L.
期刊名称：MICROORGANISMS （ 影响因子：4.2； 五年影响因子：4.6 ）
ISSN：
年卷期： 2024 年 12 卷 9 期
页码：
收录情况： SCI
摘要： Macrophomina phaseolina is a vital seed and soil-borne phytopathogen responsible for substantial crop yield losses. Although various methods exist for managing soil-borne pathogens, such as agronomic practices, chemical treatments, and varietal tolerance, biological control utilizing plant growth-promoting rhizobacteria (PGPR) or their secondary metabolites presents promising avenues. In this study, a screening of 150 isolates from the rhizosphere of Vigna radiata L. was conducted to identify strains capable of promoting host growth and controlling charcoal rot disease. Among the tested isolates, only 15 strains demonstrated the ability to produce plant growth-related metabolites, including indole acetic acid, hydrogen cyanide, ammonia, and lytic enzymes, and solubilize inorganic phosphate. Subsequently, these potent strains were evaluated for their antifungal activity against Macrophomina phaseolina in vitro. Three strains, namely MRP-7 (58% growth inhibition), MRP-12 (55% growth inhibition), and MRP-8 (44% growth inhibition), exhibited the highest percent growth inhibition (PGI.). Furthermore, a pot experiment demonstrated that the selected strains acted as effective growth promoters and ROS (reactive oxygen species) scavengers, and served as potential biocontrol agents, significantly reducing the incidence of charcoal rot disease and improving various agronomic attributes of the host plant. These findings highlight the potential of these strains to be utilized as biofertilizers and biocontrol agents for sustainable agricultural practices.
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