ORYZA- An International Journal on Rice
  • Year: 2017
  • Volume: 54
  • Issue: 1

RGG1 transgenic rice plants and their physiological characteristics in relation to salinity stress

  • Author:
  • Durga Madhab Swain1, Ranjan Kumar Sahoo1, Narendra Tuteja1,2,
  • Total Page Count: 8
  • Page Number: 13 to 20

1International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi-110067, India

2Amity University, Noida-201313, Uttar Pradesh, India

*Corresponding author e-mail: narendra@icgeb.res.in, ntuteja@amity.edu

Gene Bank Accession Number of RGG1: GU111573.1

Abstract

The heterotrimeric G-protein complex, comprising of G α, G β, and G λ subunits. It is an evolutionarily conservedsignaling molecular machine which transmits signals from transmembrane receptors to downstream target proteins. Now-a-days their functions in plant stress-signalling have been reported. Here we report the physiological function of rice G-protein λ subunit (RGG1) rice (Oryza sativa L. cv. IR64) plants under salinity stress in T3 generation. The overexpression of CaMV35S promoter driven RGG1 in transgenic rice confers high salinity (200 mM NaCl) stress tolerance. Agronomic parameters were studied and found to be higher in the transgenic plants with respect to wild type (WT) plants.

Keywords

Antioxidative enzymes, G-protein gamma interacting partners, oxidative stress, hormones, RGG1, salinity stress tolerance, transgenic rice