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Emerging nitrogen-fixing cyanobacteria for sustainable cotton cultivation

Authors :
Universidad de Sevilla. Departamento de Bioquímica Vegetal y Biología Molecular
Corporación Tecnológica de Andalucía
Junta de Andalucía
Jiménez Ríos, Lucía
Torrado Maya, Alejandro
González Pimentel, José Luis
Iniesta Pallarés, Macarena
Molina Heredia, Fernando Publio
Mariscal, Vicente
Álvarez Núñez, Consolación
Universidad de Sevilla. Departamento de Bioquímica Vegetal y Biología Molecular
Corporación Tecnológica de Andalucía
Junta de Andalucía
Jiménez Ríos, Lucía
Torrado Maya, Alejandro
González Pimentel, José Luis
Iniesta Pallarés, Macarena
Molina Heredia, Fernando Publio
Mariscal, Vicente
Álvarez Núñez, Consolación
Publication Year :
2024

Abstract

Amid growing environmental concerns and the imperative for sustainable agricultural practices, this study examines the potential of nitrogen-fixing cyanobacteria as biofertilizers, particularly in cotton cultivation. The reliance on synthetic nitrogen fertilizers (SNFs), prevalent in modern agriculture, poses significant environmental challenges, including greenhouse gas emissions and water system contamination. This research aims to shift this paradigm by exploring the capacity of cyanobacteria as a natural and sustainable alternative. Utilizing advanced metabarcoding methods to analyze the 16S rRNA gene, we conducted a comprehensive assessment of soil bacterial communities within cotton fields. This study focused on evaluating the diversity, structure, taxonomic composition, and potential functional characteristics of these communities. Emphasis was placed on the isolation of native N2-fixing cyanobacteria strains rom cotton soils, and their subsequent effects on cotton growth. Results from our study demonstrate significant plant growth-promoting (PGP) activities, measured as N2 fixation, production of Phytohormones, Fe solubilization and biofertilization potential of five isolated cyanobacterial strains, underscoring their efficacy in cotton. These findings suggest a viable pathway for replacing chemical-synthetic nitrogen fertilizers with natural, organic alternatives. The reintegration of these beneficial species into agricultural ecosystems can enhance crop growth while fostering a balanced microbial environment, thus contributing to the broader goals of global sustainable agriculture.

Details

Database :
OAIster
Notes :
English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1458411064
Document Type :
Electronic Resource