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Biologia Plantarum

, Volume 55, Issue 3, pp 536–540 | Cite as

Introduction of OsglyII gene into Oryza sativa for increasing salinity tolerance

  • S. H. WaniEmail author
  • S. S. Gosal
Brief Communication

Abstract

Mature seed-derived embryogenic calli of indica rice (Oryza sativa L. cv. PAU201) were induced on semisolid Murashige and Skoog medium supplemented with 2.5 mg dm−3 2,4-dichlorophenoxyacetic acid + 0.5 mg dm−3 kinetin + 560 mg dm−3 proline + 30 g dm−3 sucrose + 8 g dm−3 agar. Using OsglyII gene, out of 3180 calli bombarded, 32 plants were regenerated on medium containing hygromycin (30 mg dm−3). Histochemical GUS assay of the hygromycin selected calli revealed GUS expression in 50 % calli. Among the regenerants, 46.87 % were GUS positive. PCR analysis confirmed the presence of the transgene of 1 kb in 60 % of independent plants. Further, these plants have been grown to maturity in glasshouse. In vitro screening for salt tolerance showed increase in fresh mass of OsglyII putative transgenic calli (185.4 mg) as compared to control calli (84.2 mg) on 90 mM NaCl after 15 d. When exposed to 150 mM NaCl, OsglyII putative transgenic plantlets showed normal growth while the non-transgenic control plantlets turned yellow and finally did not survive.

Additional key words

embryonic callus growth regulators GUS expression hygromycin proline rice 

Abbreviations

BAP

benzylaminopurine

2,4-D

2,4-dichlorophenoxyacetic acid

GUS

β-glucoronidase

Kin

kinetin

NAA

napthaleneacetic acid

Osgly II

Oryza sativa glyoxalase II

PDS

particle delivery system

SLG

SD-lactoylglutathione

x-gluc

5-bromo-4-chloro-3-indolyl-β-D-glucuronic acid cyclohexylammonium salt

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Notes

Acknowledgement

We are grateful to Prof. Sudhir Kumar Sopory, Group Leader, Plant Molecular Biology, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg110 067, New Delhi, India, for kindly providing the Osgly II gene construct and Department of Biotechnology, Govt.of India, New Delhi for funding support.

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Department of Plant Breeding and Genetics PAULudhianaIndia
  2. 2.School of Agricultural Biotechnology PAULudhianaIndia

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