Beyond the nodule: agro-biotechnological potential of the endophytic microbiota in symbiotic nodules of legumes
DOI:
https://doi.org/10.52807/qunab.v1i1.11Keywords:
nodule endophytic bacteria, bioprospection, co-inoculation, rhizobiaAbstract
Nitrogen fixation through the legume-rhizobium symbiosis is one of the most important processes on the planet Earth. Since its discovery, the symbiosis was strictly pragmatized to rhizobia, and isolates from nodules that failed to nodulate the host plant was considered contaminants. These non-rhizobia are called Non-Nodulating Endophytic Bacteria (NNEB) and constitute a polyphasic group of soil bacteria capable of sharing the nodule interior with rhizobia. Additionally, co-inoculation of NNEB and rhizobia has been shown to improve symbiotic parameters. This synergy is explained by the diversity of growth-promoting and biocontrol characteristics that they exert during the infection and colonization process inside the symbiotic nodule. The biotechnological potential of these microorganisms is still a field to be explored, ranging from agricultural to biomedical biotechnology. This review focuses on updating the concept of NNBE, their role within the nodule, and their phylogenetic diversity. Main techniques for the study of the NNEB and their potential in the Peruvian biotechnology industry are also looked for.
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Copyright (c) 2022 Renzo Alfredo Valdez-Nuñez, Winston Franz Ríos-Ruiz, Eulogio J. Bedmar
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