Role of abscisic acid producing PGPR in sustainable agriculture

Abstract

The global climate is predicted to change the environment drastically over the next century. Increase in CO2 and temperature and decrease in soil water content leading to enhance drought in several areas of the world are expected. In the last few years, it has been increased the interest in environmental friendly, sustainable, and organic cultural practices that warrant high yield and quality in agricultural crops. Plant growth­promoting rhizobacteria (PGPR) have an important role in the growth and metabolism of plants. The beneficial effects of PGPRs have been demonstrated for many agricultural crop species. Numerous studies indicated that PGPR allow plants survive to biotic and abiotic stresses. Production of phytohormones is one of the main mechanisms to explain the beneficial effects that modified plant growth and development. In this review we are focusing on drought tolerance through ABA regulation and we showed that PGPR act as important agent for influencing the beneficial response of plants to climate change.