The Effect Of Peroxidase Production On Stressed Plants Essay

control. To help detoxify ROS, enzymatic and non-enzymatic antioxidants including speroxide dismutase (SOD), glutathione, α-tocopherol (vitamin E), catalase, will react with most oxidants. In addition, the antioxidant enzymes catalase and glutathione peroxidase detoxify H2O2 by converting it to O2 and H2O. However, when ROS levels exceed the antioxidant capacity of a cell, a deleterious condition known as oxidative stress occurs. Unchecked, excessive ROS can lead to the destruction of cellular components

Plants respond to environmental stresses such as drought, excessive salinity and low temperature through a wide variety of biochemical and physiological adaptive changes such as the accumulation of compatible solutes and synthesis of many regulatory proteins (Wu and Garg, 2003; Gong et al., 2005). It inhibits the photosynthesis of plants by causing changes in chlorophyll contents and components, damaging photosynthetic apparatus (Gong et al., 2005), reducing the net CO2 uptake by leaves because of

85719 Revised December, 2012 TABLE OF CONTENTS CHAPTER 1: Controlled Environment Agriculture and Hydroponics: Past, Present and Future The Plant How to grow greenhouse crops Plant Protection: Insects and Diseases Basic Principals of Hydroponics Transplant Production Pollination, Fertilization and Bee Management Fruit Harvesting, Grading and Storage Plant Nutrition and Nutritional Disorders Fertigation Systems and Nutrient Solutions Greenhouse Site Selection Greenhouse Structures Greenhouse Control