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International Journal of Botany
  Year: 2010 | Volume: 6 | Issue: 4 | Page No.: 456-464
DOI: 10.3923/ijb.2010.456.464
Insight into the Role of Antioxidant Enzymes for Salt Tolerance in Plants
Baby Joseph and D. Jini

Abstract:
Salinity toxicity is a worldwide agricultural and eco-environmental problem. Salt stress is one of the major abiotic stresses faced by plants, which adversely affect their productivity. Salt stress causes reduction of crop yield and alterations in plant metabolism, including a reduced water potential, ion imbalances and toxicity and sometimes severe salt stress may even threaten survival. Salinity also leads to oxidative stress in plants due to the production of Reactive Oxygen Species (ROS) such as the super oxide radical, hydrogen peroxide and hydroxyl radical. Oxidative stress is one of the major limiting factors in plant productivity. Reactive Oxygen Species (ROS) generated during metabolic processes damage cellular functions and consequently lead to disease, senescence and cell death. Plants have evolved an efficient defense system by which the ROS is scavenged by antioxidant enzymes such as superoxide dismutase (SOD), calatase (CAT), peroxidase (POX), Polyphenoloxidase (PPO) and Glutathione Reductase (GR). Attempts to reduce oxidative damages under the salt stress conditions have included the manipulation of ROS scavenging enzymes by gene transfer technology. It is important to maintain and/or increase the productivity (photosynthetic capacity) under stressful environment by developing plants that have well adapted to environmental stress through manipulating antioxidant system. In this study, we discuss the role of antioxidant enzymes for salt tolerance in plants and this study will help to improve the tolerability of plants to salt by enhancing the expression of antioxidant enzymes.
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How to cite this article:

Baby Joseph and D. Jini, 2010. Insight into the Role of Antioxidant Enzymes for Salt Tolerance in Plants. International Journal of Botany, 6: 456-464.

DOI: 10.3923/ijb.2010.456.464

URL: http://scialert.net/abstract/?doi=ijb.2010.456.464

COMMENTS
27 September, 2010
sajjad zare:
Hi Dear Baby I had similar reaserch to your work. Your work is good. we can relate enzyme activity with yield. i worked on canola. this point is very important that Breeders could select resistance cultivars basis on enzyme activity in primary growth levels. Best regard
13 December, 2011
elmor exclamador:
can i have a copy of your paper?
 
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