Endophytic and rhizospheric microbial communities associated with native and introduced cultivated plant species in Uruguay as sources for plant growth promotion bioinoculant development

Battistoni, Federico; Scavino, Ana Fernández; Ferrando, Lucia; Montañez, Adriana; Pezanni, Fabiana; Taulé, Cecilia; Vaz-Jauri, Patricia

doi:10.1007/s42398-023-00277-6

Environmental Sustainability

2023

DOI: 10.1007/s42398-023-00277-6

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Endophytic and rhizospheric microbial communities associated with native and introduced cultivated plant species in Uruguay as sources for plant growth promotion bioinoculant development

Federico Battistoni,

Ana Fernández Scavino,

Lucia Ferrando

et al.

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Diversity of nitrogen-fixing and phosphorus-solubilizing bacteria associated with the rhizosphere of Andean maize in Ecuador

Sangoquiza-Caiza,

Pincay-Verdezoto,

Park

et al. 2023

Braz. J. Biol.

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A great diversity of microorganisms in the soil plays an important role in the sustainability of agricultural production systems. Among these microorganisms are bacteria that have the ability to fix atmospheric nitrogen or mineralize phosphorus, thus making it easily assimilable for plants. Maize is the main crop in the highlands of Ecuador (above 2000 meters) and it is predominantly traditional, using native seeds and very little or no agrochemicals. The National Institute of Agricultural Research (INIAP) has a collection of bacteria collected from the rhizosphere of maize in the highlands of Ecuador that has not been taxonomically identified. This research aimed to carry out a biochemical and genetic characterization to establish the identity of the collected nitrogen-fixing and phosphorus-solubilizing bacteria and to understand better the diversity of microorganisms present in the root biome of Andean maize. The hypothesis consisted of determining if there is a difference in the bacteria associated with the rhizosphere of maize in the Andean region of Ecuador compared with other regions. The bacteria underwent classical biochemical characterization based on catalase, oxidase, urease, sulfates, indole, sulfate-indole motility (SIM), and lactose, among others, and genetic identification by 16S rDNA ribosomal gene sequencing, PCR, and SANGER sequencing. A great diversity of microorganisms associated with the rhizosphere of the crop was found, including the genera Agrobacterium, Bacillus, Stenotrophomonas, Acinetobacter, Brevundimonas, Pseudomonas, and Pseudoxanthomonas. INIAP conserves these bacteria in a bank of microorganisms associated with crops of economic importance. They are useful for the development of biofertilizers that could contribute to a more sustainable agriculture in the region.

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Diversity of nitrogen-fixing and phosphorus-solubilizing bacteria associated with the rhizosphere of Andean maize in Ecuador

Sangoquiza-Caiza,

Pincay-Verdezoto,

Park

et al. 2023

Braz. J. Biol.

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Endophytic and rhizospheric microbial communities associated with native and introduced cultivated plant species in Uruguay as sources for plant growth promotion bioinoculant development

Cited by 1 publication

References 61 publications

Diversity of nitrogen-fixing and phosphorus-solubilizing bacteria associated with the rhizosphere of Andean maize in Ecuador

Diversity of nitrogen-fixing and phosphorus-solubilizing bacteria associated with the rhizosphere of Andean maize in Ecuador

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