Plant growth promoting rhizobacteria for ameliorating abiotic stresses triggered due to climatic variability Tewari Sakshi, Arora Naveen Kumar* Department of Environmental Microbiology, Babasaheb Bhimrao Ambedkar University, Lucknow, India *Corresponding author E-mail id: nkarora_net@rediffmail.com
Abstract The world is gifted with varied landforms and diversity of climatic conditions such as the lofty mountains, the riverine deltas, high altitude forests, peninsular plateaus, variety of geological formations endowed with varying temperature and rainfall. Physical features like temperature, pH, salinity, water content constitute abiotic factors of the ecosystem and if these factors exceed beyond the threshold limit then, they might result in abiotic stresses. Economy of different countries relies on agriculture and abiotic stresses are the major constraints that limit crop productivity around the globe. The development of stress tolerant crops is not an easy and economical approach for sustainable agriculture; however microbial inoculation to alleviate stress tolerance is a better option because it minimizes production costs and environmental hazards. Top Keywords Abiotic stress, drought, PGPR, salinity, temperature, PAMs. Top |