Antioxidative Responses in Banana (Musa Sp.) Cultivars Under Water Stress

Chai, Tsun Thai (2003) Antioxidative Responses in Banana (Musa Sp.) Cultivars Under Water Stress. Masters thesis, Universiti Putra Malaysia.

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Abstract

Responses of the enzymatic and non-enzymatic antioxidant defence systems as well as oxidative injury in banana ptants (Musasp.) subjected to polyethylene glycol (PEG)-induced water stress were investigated. Micropropagated plantlets of two banana cultivars, '8erangan' and 'Mas' were subjected to 0%, 10%, 20% and 40% PEG 6000 treatments in vitro for a duration of 14 days. Progressive decline in the leaf water content of both cultivars with time and increased concentrations of PEG used, indicates that water stress was successfully imposed. Based on the enhanced levels of lipid peroxidation and membrane permeability, this study shows that water stress resulted in oxidative injury in both cultivars. Relatively lower level of membrane leakage and malondialdehyde concentrations in 'Berangan' indicate that it was more tolerant than 'Mas' to water stress-induced oxidative damage.

Item Type:Thesis (Masters)
Subject:Plant - Effect of water waves on
Subject:Bananas
Chairman Supervisor:Associate Professor Dr. Nor' Aini Mohd. Fadzillah
Call Number:FSAS 2003 8
Faculty or Institute:Faculty of Environmental Studies
ID Code:9539
Deposited By: Muizzudin Kaspol
Deposited On:14 Feb 2011 08:21
Last Modified:21 May 2012 02:16

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