Counteraction of exogenous L-proline with NaCl in salt-sensitive cultivar of rice
The counteraction of exogenous L-proline at different concentrations with salinity (100 mM NaCl at sublethal concentration) were observed on germinating rice. Supplemented 30 mM L-proline was shown to be the most effective; at higher concentration it reduced seedling growth and K+/Na+ ratio. Thus 30 mM L-proline can alleviate the salinity stress in rice seedlings.
KeywordsProline Salt Tolerance Rice Seedling Free Proline Sublethal Concentration
- Arnon, D.I., Hoagland, D.R.: The water culture method for growing plants without soil.—Univ. Calif. Agr. exp. Circ.347: 1–39, 1938.Google Scholar
- Kumar, V., Sharma, R.D.: Effect of exogenous proline on growth and ion content in NaCl stressed and non-stressed cells of mung bean,Vigna radiata var. radiata.—Indian J. exp. Biol27: 813–815, 1989.Google Scholar
- Krishnamurthy, R., Anbazhagan, M., Bhagwat, A.K.: Accumulation of free amino acids and distribution of Na+, Cl− and K+ ion rice varieties exposed to NaCl stress.—Indian J. Plant Physiol.30: 183–188, 1987.Google Scholar