NDLI: Effects of water-saving superabsorbent polymer on antioxidant enzyme activities and lipid peroxidation in oat (Avena sativa L.) under drought stress.

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Effects of water-saving superabsorbent polymer on antioxidant enzyme activities and lipid peroxidation in oat (Avena sativa L.) under drought stress.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Islam, M. Robiul Xue, Xuzhang Mao, Sishuai Ren, Changzhong Eneji, A. Egrinya Hu, Yuegao
Description	Country affiliation: China Author Affiliation: Islam MR ( College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.)
Abstract	BACKGROUND: Drought stress significantly limits oat (Avena sativa L.) growth and productivity. Thus an efficient management of soil moisture and study of metabolic changes in response to drought are important for improved production of oat. The objective was to gain a better understanding of drought tolerance mechanisms and improve soil water management strategies using water-saving superabsorbent polymer (SAP) at 60 kg ha(-1) under three irrigation levels (adequate, moderate and deficit) using a new type of hydraulic pressure-controlled auto irrigator. RESULTS: The results showed that the relative water content and leaf water potential (ψ(1) ) were much higher in oats treated with SAP. Although the SAP had little effect on plant biomass accumulation under adequate and moderate irrigation, it significantly increased the biomass by 52.7% under deficit irrigation. Plants treated with SAP under deficit irrigation showed a significant decrease in superoxide dismutase, catalase, peroxidase, ascorbate peroxidase and glutathione reductase activities in leaves compared with control plants. CONCLUSION: Our results suggested that drought stress leads to production of oxygen radicals, which results in increased lipid peroxidation and oxidative stress in the plant, and the application of SAP could conserve soil water, making same available to plants for increased biomass accumulation and reduced oxidative stress especially under severe water stress.
File Format	HTM / HTML
ISSN	00225142
Issue Number	4
Volume Number	91
e-ISSN	10970010
Journal	Journal of the Science of Food and Agriculture
Language	English
Publisher	Wiley
Publisher Date	2011-03-15
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Agriculture Agricultural Irrigation Methods Antioxidants Metabolism Avena Sativa Physiology Droughts Lipid Peroxidation Oxidative Stress Water Absorption Adaptation, Physiological Biomass Enzymes Plant Leaves Polymers Pressure Reactive Oxygen Species Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Nutrition and Dietetics Food Science Biotechnology Agronomy and Crop Science

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