Plant growth-promoting rhizobacteria and biocontrol agents triggered plant defence responses against phytopathogenic fungi and improved rice growth

Danish, Mohammad; Shahid, Mohammad; Altaf, Mohammad; Tyagi, Anshika; Ali, Sajad

doi:10.1016/j.pmpp.2024.102337

Physiological and Molecular Plant Pathology

2024

DOI: 10.1016/j.pmpp.2024.102337

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Plant growth-promoting rhizobacteria and biocontrol agents triggered plant defence responses against phytopathogenic fungi and improved rice growth

Mohammad Danish,

Mohammad Shahid,

Mohammad Altaf

et al.

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2024

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Cited by 5 publications

References 78 publications

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Isolation and assessment of the beneficial effect of exopolysaccharide-producing PGPR in Triticum aestivum (L.) plants grown under NaCl and Cd -stressed conditions

Shahid,

Altaf,

Ali

et al. 2024

Plant Physiology and Biochemistry

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Isolation and assessment of the beneficial effect of exopolysaccharide-producing PGPR in Triticum aestivum (L.) plants grown under NaCl and Cd -stressed conditions

Shahid,

Altaf,

Ali

et al. 2024

Plant Physiology and Biochemistry

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Synergistic interactions of biocontrol agents and chemical fungicides enhance the disease resistance in Vigna radiata (L.) against Macrophomina phaseolina-associated with dry root rot

Danish,

Shahid,

Farah

et al. 2024

Physiological and Molecular Plant Pathology

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Isolation and Characterization of Seed-borne Endophytes for Antifungal Activity and Plant Growth Promotion in Rice

Sekar,

Kumaresan,

Nallasamy

et al. 2024

J. Pure Appl. Microbiol.

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Traditionally, diseases have been managed with synthetic chemicals, but concerns over their environmental and health impacts have led to increased interest in biological control methods as sustainable alternatives. This study explores the potential of the seed-borne endophytes for eco-friendly biological control agent against brown spot Bipolaris oryzae (Breda de Haan) and sheath blight disease (Rhizoctonia solani Kuhn) in rice. The findings revealed that B. subtilis RE-1 effectively reduced the mycelial growth of brown spot and sheath blight pathogen up to 46.27% and 40.37%, respectively under in vitro conditions. Endophytes produced extracellular hydrolytic enzymes viz., amylase, protease, cellulase and lipase that degrade fungal mycelia. Additionally, B. subtilis RE-1 synthesized antimicrobial peptides (AMPs) including Iturin (C, D), Bacilysin, Fengycin D, Mycosubtilin, Bacillomycin (A,D) and hydrolytic enzymes viz., β-glucanase, which collectively demonstrated potent antimicrobial and antifungal activities. The identification of six antimicrobial lipopeptides genes and one hydrolytic enzyme gene in seed-borne endophytes is a novel finding of this study, highlighting its comprehensive disease-fighting potential. Furthermore, B. subtilis enhances seed germination rates to 96% and increases the vigor index to 1574.784, compared to the control seeds with 92% germination and a vigor index of 1393.984. The augmentation of seedling growth can be attributed to the release of IAA, siderophore and ammonia utilization. These findings underscore B. subtilis as a promising endophyte that could enhance rice production sustainably.

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Plant growth-promoting rhizobacteria and biocontrol agents triggered plant defence responses against phytopathogenic fungi and improved rice growth

Cited by 5 publications

References 78 publications

Isolation and assessment of the beneficial effect of exopolysaccharide-producing PGPR in Triticum aestivum (L.) plants grown under NaCl and Cd -stressed conditions

Isolation and assessment of the beneficial effect of exopolysaccharide-producing PGPR in Triticum aestivum (L.) plants grown under NaCl and Cd -stressed conditions

Synergistic interactions of biocontrol agents and chemical fungicides enhance the disease resistance in Vigna radiata (L.) against Macrophomina phaseolina-associated with dry root rot

Isolation and Characterization of Seed-borne Endophytes for Antifungal Activity and Plant Growth Promotion in Rice

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