Biocontrol and growth promotion of groundnut by Pseudomonas putida GN1 against soilborne pathogens

Article

Paramasivan, Mookkan, Ramjegathesh, Rajendran, Rajendran, Lingam, Thangam, Algarsamy, Indiragandhi, Pandian, Ravichandran, Venugopal, Johnson, Iruthayasamy, Karthikayan, Gandhi and Karthikeyan, Muthusamy. 2025. "Biocontrol and growth promotion of groundnut by Pseudomonas putida GN1 against soilborne pathogens." Archives of Phytopathology and Plant Protection. 58 (5), pp. 282-301. https://doi.org/10.1080/03235408.2025.2476217

Article Title	Biocontrol and growth promotion of groundnut by Pseudomonas putida GN1 against soilborne pathogens
ERA Journal ID	44687
Article Category	Article
Authors	Paramasivan, Mookkan, Ramjegathesh, Rajendran, Rajendran, Lingam, Thangam, Algarsamy, Indiragandhi, Pandian, Ravichandran, Venugopal, Johnson, Iruthayasamy, Karthikayan, Gandhi and Karthikeyan, Muthusamy
Journal Title	Archives of Phytopathology and Plant Protection
Journal Citation	58 (5), pp. 282-301
Number of Pages	20
Year	2025
Publisher	Taylor & Francis
Place of Publication	United Kingdom
ISSN	0323-5408
Digital Object Identifier (DOI)	https://doi.org/10.1080/03235408.2025.2476217
Web Address (URL)	https://www.tandfonline.com/doi/full/10.1080/03235408.2025.2476217
Abstract	Groundnut root rot (Macrophomina phaseolina) and stem rot (Sclerotium rolfsii) are significant threats to yield in both rainfed and irrigated systems. This study aimed to isolate and evaluate plant growth-promoting rhizobacteria (PGPR) from groundnut soils in Tamil Nadu for their potential as biocontrol agents and growth enhancers. Fourteen PGPR strains were tested, with Pseudomonas putida GN1 (ON307464), Burkholderia cepacia KKM1 (OM908755) and Pseudomonas sp. K1 (ON408243) showing notable pathogen suppression. P. putida GN1 was the most effective, inhibiting M. phaseolina by 53.93% and S. rolfsii by 46.06%, while also boosting seed germination and seedling vigour. Additionally, P. putida GN1 improved drought tolerance by enhancing root growth characteristics. These results highlight P. putida GN1 as a promising biocontrol and plant growth-promoting agent for groundnut, particularly in drought-prone areas.
Keywords	Groundnut; root rot; stem rot; rhizoscanner; siderophore; Pseudomonas putida GN1
Contains Sensitive Content	Does not contain sensitive content
ANZSRC Field of Research 2020	3099. Other agricultural, veterinary and food sciences
Public Notes	Files associated with this item cannot be displayed due to copyright restrictions.
Byline Affiliations	Tamil Nadu Agricultural University, India
	Manonmanium Sundarnanr University, India
	Centre for Crop Health
	School of Agriculture and Environmental Science

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