Salt stress-induced proline accumulation, changes in ionic adjustment (na+/k+) and catalase in the tomato (solanum lycopersicum) leaf
International Journal of Development Research
Salt stress-induced proline accumulation, changes in ionic adjustment (na+/k+) and catalase in the tomato (solanum lycopersicum) leaf
Received 08th July, 2017; Received in revised form 28th August, 2017; Accepted 14th September, 2017; Published online 30th October, 2017
Copyright ©2017, Dr. Asha Sharma, Pooja and Govinda. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Soil salinity is a major limitation to plant in many areas of the world. Present study has explored the effect of salinity on Proline content, mineral composition and antioxidant enzyme of tomato. Tomato plants were exposed to 0, 60, 90,120,150 mM NaCl.The Proline accumulation was studied by reading the absorption of chromophore at 520nm using spectrophotometer. The content of proline increase in tomato as the level of NaCl increase. Using atomic absorption spectrophotometer ion uptake for Na+, K+, Ca+ and Mg2+ were determined. The Na content significantly increase but the content of K+, Ca+, K+ and Mg2+ decrease significantly decrease as the salinity increase. The changes in the activity of antioxidant enzymes such as super oxide dismutase catalase (CAT: EC 1.11.1.6), in leaves of tomato cultivar (cv.) differing in salt tolerance were investigated. The activity of catalase increase as the level of salinity increase.
