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Frontiers in microbiology
2020;11 2019.

Potential of Salt Tolerant PGPR in Growth and Yield Augmentation of Wheat ( L.) Under Saline Conditions.

Aniqa Nawaz, Muhammad Shahbaz, Asma Imran, Muhammad U Marghoob, Muhammad Imtiaz, Fathia Mubeen
Author Information
  1. Aniqa Nawaz: Stress Physiology Lab, Department of Botany, University of Agriculture, Faisalabad, Pakistan.
  2. Muhammad Shahbaz: Stress Physiology Lab, Department of Botany, University of Agriculture, Faisalabad, Pakistan.
  3. Asadullah: Phytohormone Lab, Department of Plant Sciences, Quaid-I-Azam University, Islamabad, Pakistan.
  4. Asma Imran: Microbial Physiology Lab, Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Constituent College of Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan.
  5. Muhammad U Marghoob: Microbial Physiology Lab, Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Constituent College of Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan.
  6. Muhammad Imtiaz: Microbial Physiology Lab, Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Constituent College of Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan.
  7. Fathia Mubeen: Microbial Physiology Lab, Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Constituent College of Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan.
PMID: 33117299 DOI: 10.3389/fmicb.2020.02019

Abstract

Soil salinity has emerged as a major obstacle to meet world food demands. Halo-tolerant plant growth promoting rhizobacteria (PGPR) are potential bioinoculants to enhance crop productivity in saline agriculture. Current work was aimed at studying individual or synergetic impact of salt tolerant PGPR on wheat growth and yield under saline conditions. A pot experiment was conducted on two wheat genotypes (Aas-11; salt tolerant and Galaxy-13; salt sensitive) inoculated with , and alone and in consortium. The salt tolerant variety (Aas-11) exhibited maximum root fresh (665.2%) and dry biomass (865%), free proline (138.12%) and total soluble proteins (155.9%) contents, CAT (41.7%) activity and shoot potassium uptake (81.08%) upon inoculation with , while improved shoot dry weight (70.39%), water (23.49%) and osmotic (29.65%) potential, POD (60.51%) activity, enhanced root potassium (286.36%) and shoot calcium (400%) were manifested by Highest shoot length (14.38%), fresh weight (72.73%), potassium (29.7%) and calcium (400%) acquisition as well as glycinebetaine (270.31%) content were found in plants treated with PGPR consortium. On the other hand, in the salt sensitive variety (Galaxy-13), treated plants showed significantly improved leaf-water relations, glycinebetaine (10.78%) content, shoot potassium (23.07%), root calcium (50%) uptake, and yield parameters, respectively. Plant root length (71.72%) and potassium content (113.39%), root and shoot fresh and dry biomass, turgor potential (231.02%) and free proline (317.2%) content were maximum upon PGPR inoculation in consortium. Overall, Aas-11 (salt tolerant variety) showed significantly better performance than Galaxy-13 (salt sensitive variety). This study recommends and for the salt tolerant (Aas-11) and for the salt sensitive (Galaxy-13) varieties, as potential bioinoculants to augment their growth and yield through modulation of morpho-physiological and biochemical attributes under saline conditions.

Keywords

climate change osmotically active compounds plant growth promoting rhizobacteria salt stress salt tolerance

References

  1. Proc Natl Acad Sci U S A. 1964 Jul;52(1):119-25 [PMID: 16591185]
  2. Sci Rep. 2016 Oct 06;6:34768 [PMID: 27708387]
  3. Front Plant Sci. 2015 Jul 01;6:491 [PMID: 26191069]
  4. Plant J. 2017 May;90(4):788-807 [PMID: 28333395]
  5. Mycorrhiza. 2016 Jan;26(1):67-76 [PMID: 26041568]
  6. Front Microbiol. 2016 Oct 13;7:1600 [PMID: 27790198]
  7. Front Plant Sci. 2017 Apr 24;8:611 [PMID: 28484479]
  8. Mol Cells. 2014 Feb;37(2):109-17 [PMID: 24598995]
  9. Arch Microbiol. 2016 May;198(4):379-87 [PMID: 26860842]
  10. Plant Cell Environ. 2009 Mar;32(3):237-49 [PMID: 19054352]
  11. Front Microbiol. 2018 Nov 15;9:2732 [PMID: 30498482]
  12. Front Plant Sci. 2016 Aug 30;7:1314 [PMID: 27625672]
  13. Plant Mol Biol. 2016 Apr;90(6):623-34 [PMID: 26830772]
  14. Cell Mol Biol (Noisy-le-grand). 2019 Aug 05;65(6):22-27 [PMID: 31472044]
  15. Ecotoxicol Environ Saf. 2019 Nov 15;183:109466 [PMID: 31408821]
  16. Fungal Biol. 2016 Jun-Jul;120(6-7):862-72 [PMID: 27268246]
  17. Crit Rev Biotechnol. 2018 Feb;38(1):141-156 [PMID: 28395514]
  18. Anal Biochem. 1976 May 7;72:248-54 [PMID: 942051]
  19. J Exp Bot. 2006;57(5):1025-43 [PMID: 16510517]
  20. BMC Plant Biol. 2015 Aug 12;15:195 [PMID: 26264238]
  21. Bull Exp Biol Med. 2007 Nov;144(5):702-5 [PMID: 18683501]
  22. Biomed Res Int. 2013;2013:863240 [PMID: 23957006]
  23. Plant Physiol Biochem. 2012 Sep;58:227-35 [PMID: 22846334]
  24. Plant Physiol. 1997 Nov;115(3):971-980 [PMID: 12223854]
  25. Res Microbiol. 2018 Jan;169(1):20-32 [PMID: 28893659]
  26. Annu Rev Plant Biol. 2008;59:651-81 [PMID: 18444910]
  27. Braz J Microbiol. 2018 Jan - Mar;49(1):7-9 [PMID: 28757098]
  28. Plant Physiol. 1977 Feb;59(2):309-14 [PMID: 16659839]
  29. Front Microbiol. 2019 Dec 18;10:2791 [PMID: 31921005]
  30. PLoS One. 2016 Jun 20;11(6):e0155026 [PMID: 27322827]
Journal Article
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Word Cloud

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