Acta Scientific Agriculture

Short CommunicationVolume 2 Issue 6

Stress-Adaptive Microbes for Plant Growth Promotion and Alleviation of Drought Stress in Plants

Ajar Nath Yadav1* and Neelam Yadav2

1Department of Biotechnology, Akal College of Agriculture, Eternal University, Baru Sahib, Sirmour, Himachal Pradesh, India
2Gopi Nath P.G. College, Deoli-Salamatpur, Ghazipur, Uttar Pradesh, India

*Corresponding Author: Ajar Nath Yadav, Microbial Biotechnology Laboratory, Department of Biotechnology, Akal College of Agriculture, Eternal University, Baru Sahib, India.

Received: April 26, 2018; Published: May 28, 2018

Citation: Ajar Nath Yadav and Neelam Yadav. “Stress-Adaptive Microbes for Plant Growth Promotion and Alleviation of Drought Stress in Plants". Acta Scientific Agriculture 2.6 (2018).

Abstract

  Drought is one of the major abiotic stresses accepted as the main constraint for loss of the crop yield worldwide. Further, problems are created by nutrient limitations and particularly low phosphorus (P) soil status due to which modern agricultural systems are highly dependent on chemical fertilizers. The biotechnology offers a number of sustainable solutions to mitigate these problems by using plant growth promoting (PGP) microbes. These microbes help the crops to tolerate drought conditions by different mechanisms including the production of the exopolysaccharides (EPS), phytohormones (Auxin, Gibberrellic acid and Cytokinin), 1-aminocyclopropane- 1-carboxylate (ACC) deaminase, solubilization of phosphorus, potassium and zinc, biological nitrogen fixation and enhancement of nutrient uptake, induction of the accumulation of osmolytes, antioxidants, upregulation or down regulation of the stress responsive genes. Inoculating plants with PGP microbes can increase tolerance against abiotic stresses such as drought, salinity and metal toxicity. The PGP microbes play important role in plant growth and soil health, which belong to diverse genera Arthrobacter, Azospirillum, Azotobacter, Bacillus, Burkholderia, Enterobacter, Klebsiella, Lysinibacillus, Paenibacillus, Pseudomonas, Serratia, and Streptomyces .

Keywords: Alleviation; Diversity; Drought Stress; Plant Growth Promotion; Stress-Adaptive Microbes

Copyright: © 2018 Ajar Nath Yadav and Neelam Yadav. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.




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