High Temperatures and Bacillus Inoculation Affect the Diversity of Bradyrhizobia in Cowpea Root Nodules.

ABSTRACT: Future climatic scenario predictions indicate a substantial temperature increase, reducing crop production worldwide and demanding the development of adaptations in agriculture. This study aimed to assess the impact of high temperatures and amendments with Bacillus on nodulating bradyrhizobia. Two cowpea genotypes were evaluated at low (min = 20.0°C, max = 33.0°C) and high-temperature regimes (min = 24.8 C, max = 37.8°C). Plants were also inoculated with Bacillus sp. ESA 402, a plant growth-promoting bacterium. The molecular diversity of the bradyrhizobia isolated from cowpea nodules and plant growth was assessed. High temperatures reduced nodulation of the BRS Itaim cowpea genotype. One hundred and eighty-six were genotyped, clustering the collection into 45 groups. The high temperatures

SUBMITTER: Oliveira CS 

PROVIDER: S-EPMC12406091 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature