Pseudomonas putida, an endophyte of Piper tuberculatum, increases the biomass of cowpea (Vigna unguiculata L.)

Marques Ferreira, Arthur Y de Paula Costa Albuquerque, Leticia Y Batista de Souza, Cláudia Regina (2025) Pseudomonas putida, an endophyte of Piper tuberculatum, increases the biomass of cowpea (Vigna unguiculata L.). Revista de Ciencias Agr�colas, 42 (3). e3273. ISSN 2256-2273

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Resumen

Plant growth-promoting bacterial endophytes have been increasingly used in sustainable agriculture. Previous studies reported the isolation of Pseudomonas putida Pt12 with plant growth-promoting properties associated with the roots of Piper tuberculatum, a Piperaceae from the Amazon region. Thus, this study aimed to evaluate the effect of P. putida Pt12 on promoting the growth of cowpea (Vigna unguiculata L.), a legume crop with economic importance in developing countries, where its production can be affected by biotic and abiotic factors. Experiments were arranged in a completely randomized design using two methods of inoculation (seed bacterization and seedling irrigation). In seed bacterization, cowpea seeds were surface-sterilized, followed by inoculation with the Pt12 suspension (OD600= 0.3, 3×108 cells/mL). For irrigation, 8-day-old seedlings were inoculated with the P12 suspension (OD600= 0.1, 1x108 cells/mL and OD600= 0.3, 3×108 cells/mL) through soil irrigation. Plant growth was monitored over a period of 25 days, which the parameters of biomass were assessed. The data were subjected to analysis of variance using the Scott-Knott test at 5% significance. Plants inoculated with Pt12 exhibited significantly higher growth compared to non-inoculated plants. Enhanced growth of both roots and the aerial part of the plant was observed, resulting in 206% and 59% increases in total dry biomass of plants inoculated by seed bacterization and soil irrigation, respectively. No significant differences were observed between plants irrigated with the two inoculum concentrations.

Tipo de Elemento:	Artículo
Palabras Clave:	endophytic bacteria; productivity; promotion of plant growth; seed bacterization; soil irrigation; sustainable agriculture
Asunto:	S Agricultura > S Agriculture (General)
Division:	Revistas > Revista de Ciencias Agrícolas
Depósito de Usuario:	FACIA Fac. Ciencias Agrícolas Udenar
Fecha Deposito:	12 Jun 2026 21:21
Ultima Modificación:	12 Jun 2026 21:21
URI:	http://sired.udenar.edu.co/id/eprint/18051

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