Harnessing Novel Soil Bacteria for Beneficial Interactions with Soybean

It is claimed that one g of soil holds ten billion bacteria representing thousands of distinct species. These bacteria play key roles in the regulation of terrestrial carbon dynamics, nutrient cycles, and plant productivity. Despite the overwhelming diversity of bacteria, most bacterial species rema...

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Bibliographic Details
Published in:Microorganisms (Basel) 2023-01, Vol.11 (2), p.300
Main Authors: Gonçalves, Osiel Silva, Souza, Thamires Santos, Gonçalves, Guilherme de Castro, Fernandes, Alexia Suellen, Veloso, Tomás Gomes Reis, Tupy, Sumaya Martins, Garcia, Ediones Amaro, Santana, Mateus Ferreira
Format: Article
Language:English
Subjects:
Acids
Agricultural research
Bacteria
biocontrol
Carbon cycle
Crop production
Distribution
DNA polymerase
Drought
Gene clusters
Gene sequencing
Genetic aspects
Genomes
genomics
Growth
Kosakonia
Metabolites
Nutrient cycles
Nutrient dynamics
Phylogenetics
Plant growth
Rhizosphere
Soil bacteria
Soil microbiology
Soil microorganisms
Soils
Soybean
Soybeans
Species
Trace elements
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Summary:It is claimed that one g of soil holds ten billion bacteria representing thousands of distinct species. These bacteria play key roles in the regulation of terrestrial carbon dynamics, nutrient cycles, and plant productivity. Despite the overwhelming diversity of bacteria, most bacterial species remain largely unknown. Here, we used an oligotrophic medium to isolate novel soil bacteria for positive interaction with soybean. Strictly 22 species of bacteria from the soybean rhizosphere were selected. These isolates encompass ten genera ( , , , , , , , , , and ) and have potential as novel species. Furthermore, the novel bacterial species exhibited plant growth-promoting traits in vitro and enhanced soybean growth under drought stress in a greenhouse experiment. We also reported the draft genome sequences of sp. strain SOY2 and sp. strain SOY23. Along with our analysis of 169 publicly available genomes for the genera reported here, we demonstrated that these bacteria have a repertoire of genes encoding plant growth-promoting proteins and secondary metabolite biosynthetic gene clusters that directly affect plant growth. Taken together, our findings allow the identification novel soil bacteria, paving the way for their application in crop production.
ISSN:2076-2607
2076-2607
DOI:10.3390/microorganisms11020300