Changes in growth and antioxidant capacity of canola by salinity and salicylic acid under in vitro
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 5, Issue 2
Abstract
The study was conducted to evaluate alterations in growth and antioxidant capacity of salt stressed canola plants in present of salicylic acid (SA). Seeds of Brassica napuscultivar Ocapy were cultured in MS (Murashig and Skoog) medium containing 0, 50 and 100 mMNaCl and different levels of SA (0, 2 and 5 ?M) under in vitro condition. After 4 weeks, the effect of salinity and SA treatments were studied on growth and the antioxidant enzymes activity, ascorbate peroxidase (APX) and catalase (CAT), in roots and shoots. The percentage of seed germination was decreased with increase in salt levels. SA significantly increased it under salinity. Shoot length and fresh weight decreased not only under salt and SA treatments but also in response to NaCl and SA interactions, whereas enhancement of root length and fresh weight was presented under salt stress in the absence of SA. Treatment with SA and interaction of NaCl and SA reduced root length. Total anthocyanin content was significantly reduced under salt concentrations and SA in comparison to the control. Salt stress increased significantly reducing sugars in roots, while SA-treated plants exhibited high accumulation of reducing sugars in shoots under salinity. Individual NaCl treatment did not show a significant effect on antioxidant activity (CAT and APX) while the presence of SA decreased CAT activity in root and APX activity in shoot under salt stress.
Authors and Affiliations
Roya Razavizadeh *| Asistant Professor, Department of Biology, Faculty of Science, Payame Noor University, PO BOX 19395- 3697 Tehran. Iran, email:razavi.roya@gmail.com, Fatemeh Rostami| Department of Biology, Faculty of Science, Payame Noor University, Iran
Establishment of Inula helenium hairy root culture with the use of Agrobacterium rhizogenes
Elecampane (Inula helenium L, composite) is one of the medicinal plants whose roots have secondary metabolites such as Inulin, helenin and sesquiterpene lactones. In this research, hairy root culture of I. helenium was e...
Superior Occident: British Hegemony over Orients in Virginia Woolf’s Orlando
Superiority of Occident and inferiority of Orient were and are the place of challenge for many centuries till now. The superiority of British people resulted in a form of British hegemony. In this paper, Orlando: A Biogr...
Studying Decreased Methods of Stress Concentration around Holes and Openings of Plate and Shell Structures’ Body
Phenomenon of stress concentration and creating it in shells is one of the scientifically and practically critical issues in structural and mechanical engineering. Submarines, vessels, wings and fuselages of airplanes, m...
The relation between conservativeness and transparency in financial reporting (Divided with Respect to Profit Smoothing and Non- Smoothing Companies)
Accounting conservativeness is as a part of a functional contractual technology which helps the decrease in essential losses due to representativeness issues. Based on this concept, conservative accounting, by influencin...
Analysis of the Archetype of Shadow in Mythical part of Shahname of Ferdousi
The archetype of shadow is one of the most important subjects of Jung theory. Jung considers shadow as a negative and animal aspect of personality and a summary of unpleasant traits that is has no relevance with laws and...