• Printed Journal
  • Indexed Journal
  • Refereed Journal
  • Peer Reviewed Journal
Journal of Pharmacognosy and Phytochemistry

Journal of Pharmacognosy and Phytochemistry

Vol. 8, Special Issue 2 (2019)

Non-enzymatic antioxidant defense system in plants

Author(s):

KB Sujatha, Priyanka A, Pavithra S and Manoj Kumar K

Abstract:
The defense system in plants have efficient complex enzymatic and non-enzymatic antioxidant defense systems to avoid the toxic effects of free radicals. Chloroplasts and mitochondria are the two main powerhouses and sites of reactive oxygen species (ROS) generation within plant cells AA is the most abundant and the most extensively studied antioxidant compound. It is can donate electrons to a wide range of enzymatic and non-enzymatic reactions. Majority of AA in plant cells is the result of Smirnoff-Wheeler pathway, catalyzed by L-galactano-γ-lactone dehydrogenase in the plant mitochondria, with the remaining being generated from D-galacturonic acid. Vitamin E (α-tocopherol), is an efficient lipid soluble antioxidant that functions as a ‘chain breaker’ during lipid peroxidation in cell membranes and various lipid particles including low-density lipoprotein (LDL). It functions to intercept lipid peroxyl radicals (LOO) and to terminate the lipid peroxidation chain.

Pages: 929-932  |  1342 Views  420 Downloads

How to cite this article:
KB Sujatha, Priyanka A, Pavithra S and Manoj Kumar K. Non-enzymatic antioxidant defense system in plants. J Pharmacogn Phytochem 2019;8(2S):929-932.

Important Publications Links
Journal of Pharmacognosy and Phytochemistry Pharmacognosy

Journal of Pharmacognosy and Phytochemistry

Call for book chapter