Bradyrhizobium japonicum strain Asw1 colonizing cowpea ( Vigna unguiculata L.) roots mediates eco-physiological and growth responses in faba bean ( Vicia faba L.) and wheat ( Triticum aestivum L.)

Abstract

In the Twenty-First Century, the greatest challenge in the agriculture is the increment of the crop productivity with reducing the harmful implications resulting from the utilization of chemical fertilization. Plant-microbe interaction provide an essential function for plant growth promotion and crop productivity with safety management and controlling ecosystems pollution. In this research, Bradyrhizobium japonicum strain Asw1 (accession no. MN079045) isolated from Vigna unguiculata (L.) nodules were used to mediate some important eco-physiological responsiveness included the photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs) and leaf water-use efficiency (WUE) in faba bean and wheat plants. The results obtained indicated that the inoculation with strain Asw1was significantly (p˂0.05) enhanced the eco-physiological and growth responses in both plant species. Our research provides a considerable sign for the benefit use of Bradyrhizobium japonicum Asw1as plant growth promoting symbiotant. Therefore, we suggest the exploitation of strain Asw1 in large scale, in the agricultural purposes.