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Muhammad Arshadullah
Syed Ishtiaq Hyder
Raheel Baber
Tariq Sultan
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Syed Ishtiaq Hyder
Raheel Baber
Tariq Sultan
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International Journal of Plant Breeding and Crop Science

Screening Rhizobacteria containing Acc-Deaminase for Growth and Yield of Rice (Oryza sativa) under Salt Stress Conditions

Muhammad Arshadullah, Syed Ishtiaq Hyder, Raheel Baber and Tariq Sultan

Land Resources Research Institute, National Agricultural Research Centre, Park Road, Islamabad-45500, Pakistan

Accepted 4 July, 2017

Citation: Arshadullah M, Hyder SI, Baber R, Sultan T. Screening Rhizobacteria containing Acc-Deaminase for Growth and Yield of Rice (Oryza sativa) under Salt Stress Conditions. International Journal of Plant Breeding and Crop Science 4(2): 243-247.

Copyright: © 2017 Arshadullah et al. 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 cited.

Abstract

Bacteria possessing ACC deaminase activity reduce the level of stress ethylene conferring resistance and stimulating growth of plants under various biotic and abiotic stresses. Therefore, this study was carried out at National Agriculture Research Centre Islamabad to screen rhizobacteria containing ACC deaminase for inducing salt tolerance and improving rice plant growth and enhancement in paddy production under salt-stressed conditions. (ECe=9.65 dS m-1) during June, 2015 to November, 2016. Rice variety Basmati-385 seeds were inoculated with rhizobacterial strains which were: SBCC (M9), RPR (32), RPR (33), WPS (8) PBS, SBCC (M8) and RPR (41). Salinity (9.65dS m-1) was artificially developed using salts. This study resulted that rice crop improved growth and yield under salt stressed conditions with the induction of salt tolerance through ACC deaminaze PGPR and this was accomplished with the reduction in ethylene production. Reduction in sodium uptake by the utilization of different rhizobial strains having ACC deaminaze activity under saline environment is a encouraging sign to induce salt tolerance naturally and reduce the toxic effects of utilization of chemicals for reclamation of salt – affected lands.

KEY WORDS: Rice growth and yield, Salinity, Ethylene, Rhizobial strains, Salt tolerance, PGPR ACC Deaminaze