Effect of Short Term NaCl Stress on Cultivars of S. lycopersicum: A Comparative Biochemical Approach
Journal Title: Журнал ÑтреÑÑ-физиологии и биохимии - Year 2014, Vol 10, Issue 1
Abstract
Tomato is a crop plant with high fruit nutritive value and other useful properties. The cultivation of this species is dependent on many environmental factors, e.g. temperature, salinity, nutrients etc, affecting the yield and reproductive potential of the plant. Salinity in soil or water is of increasing importance to agriculture because it causes stress to crop plants. Plants exposed to an excess amount of salts such as NaCl undergo osmotic stress, water deficit and ionic imbalances and can increase production of reactive oxygen species(ROS). Higher plants possess very efficient enzymatic and non-enzymatic antioxidative defense mechanisms that allow the scavenging of ROS and protection of cellular components from oxidative damage. Studies were conducted to investigate the effect of short term salinity stress on some physiological alterations in three tomato cultivars Pusa Ruby(PR), Punjab Keshari (PK) and Ailsa Craig(AC). Some biochemical parameters (anthocyanin and carotenoeid content, polyamines, proline, cysteine, peroxidase and malondialdehyde) were set and applied at two month old stage of tomato plants. Three tomato cultivars were grown in 0.5xMS for 2 months and at this stage, they were treated with 0 and 200mM NaCl for a short period of six hours in hydroponic conditions. The genotypes exhibited different responses in terms of different osmoprotectant, antioxidant, and pigment level. The relationships among the salinity and accumulation of these compounds in leaf were then determined. It was concluded that, tomato cultivars under study responded differently showing their sensitivity or tolerance to salinity stress. Among three cultivars PK appeared to be more tolerant genotype than the other two cultivars PR and AC. PK could rapidly evolve physiological and antioxidant mechanisms to adapt to salt and manage the oxidative stress. The research was conducted in a completely randomized design with three replications.
Authors and Affiliations
Chaitali Roy, D. Sengupta
Keywords
Related Articles
- EP ID EP120944
- DOI -
- Views 81
- Downloads 0
Mathematical modeling of heat transfer in plant community
The conductive, convective and radiation heat exchange process in a natural system including plants aggregation, air lower layer and ground upper layer, is examined. The mathematical model of process is formulated in 1d...
Seed Germination, Seedling Growth and Enzyme Activity of Wheat Seed Primed under Drought and Different Temperature Conditions
The study aimed was to determine the effects of drought stress (0, -4, -8, -12 bar) and osmopriming (-15 bar PEG 6000 for 15 at 24 h) on seed germination, seedling growth and enzyme activity at different temperatures we...
Combined Effects of Zinc and High Irradiance Stresses on Photoinhibition of Photosynthesis in Bean
Seedlings of bean plants (Phaseolus vulgaris L. Sel 9) were grown for 2 weeks with half strength Hoagland solution containing 0 ppm (deficient), 5 ppm (sufficient) and 50 ppm (excess) ZnSO4*7H2O. Changes in photosyntheti...
LIGHT INFLUENCE ON SUCCINATE DEHYDROGENASE ACTIVITY IN<br /> MAIZE LEAVES
Photosynthesis and respiration participates in energy production by plants undo different light conditions. It looks quite important to provide a balanced regulation of these processes. It was show in presented study tha...
Salinity stress effects changed during Aloe vera L. vegetative growth
Salt stress is a limiting factor of plant growth and yield, and becoming a serious problem in the world so in reason to determine salinity effect on aloe growth experiment was conducted in a greenhouse as a bi-factorial...