Isolation and characterization of rhizobacteria from Dawadmi soil region of Saudi Arabia and their effect on Triticum aestivum Logaimi seedlings under drought stress
MM Alqahtani, AS El-Enany
Drought is the major abiotic stress of borderlands, which reduces the ability of plants to absorb water from the soil and reduces plant growth. The search for drought resistant bacteria from dry environments around the world to mitigate the negative effects of plant growth is our goal. So, we attend to isolate the characterize rhizospheric bacteria of legume and non-legume plants in the desert region of Dawadmi, Riyadh region, Saudi Arabia. Ten rhizosphere soil samples and plant roots were collected from Dawadmi region. In our laboratory study, it was observed that all rhizobacterial strains had the ability to produce auxin in varying amounts with different efficacy. Soaking wheat grains overnight in PGPB cultures showed an overcome on drought stress. The percentage germination, germination index and growth rate of wheat seedling were improved as compared with drought-stressed wheat seedlings.