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Acta Physiologiae Plantarum

, Volume 33, Issue 3, pp 797–802 | Cite as

Combination of endophytic and rhizospheric plant growth promoting rhizobacteria in Oryza sativa shows higher accumulation of osmoprotectant against saline stress

  • Yachana JhaEmail author
  • R. B. Subramanian
  • Suchita Patel
Original Paper

Abstract

The effect of endophytic and rhizospheric bacteria was studied on salt stress in a local paddy rice (Oryza sativa L.) variety GJ-17. Plants inoculated with endophytic bacterium Pseudomonas pseudoalcaligenes showed significantly higher concentration of glycine betaine-like quaternary compounds and higher shoot biomass at lower salinity levels. While at higher salinity levels, mixture of both P. pseudoalcaligenes and Bacillus pumilus showed better response against the adverse effects of salinity. However, accumulation of proline showed an opposite trend against plant growth promoting rhizobacteria (PGPR) treatment in salinity stress. Proline concentration increased with salinity but decreased in plants inoculated with either of the PGPRs or mixture of both P. pseudoalcaligenes and B. pumilus. The present study shows that inoculation of paddy rice (Oryza sativa L.) with a mixture of endophytic and rhizospheric bacteria could serve as a useful tool for alleviating salinity stress.

Keywords

PGPR Endophytic Rhizospheric Glycine betaine-like quaternary compounds Proline 

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Copyright information

© Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków 2010

Authors and Affiliations

  • Yachana Jha
    • 1
    Email author
  • R. B. Subramanian
    • 2
  • Suchita Patel
    • 2
  1. 1.N. V. Patel College of Pure and Applied SciencesSardar Patel UniversityV. V. Nagar, AnandIndia
  2. 2.BRD School of BiosciencesSardar Patel UniversityV. V. NagarIndia

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