Molecular biology, biotechnology and genomics of flooding-associated low O2 stress response in plants

Agarwal, Sangeeta ; Grover, Anil (2006) Molecular biology, biotechnology and genomics of flooding-associated low O2 stress response in plants Critical Reviews in Plant Sciences, 25 (1). pp. 1-21. ISSN 0735-2689

Full text not available from this repository.

Official URL:

Related URL:


Low O2 stress to a varied extent affects almost all the organisms either throughout or at specific stages in their life cycle. Plants experience this stress generally in field conditions when flooding, submergence or waterlogging of roots/plants occurs. Low O2 availability during flooding stress results in enormous yield losses in variety of crops. There is overwhelming evidence indicating that adaptations to low O2 stress involves changes in molecular, biochemical, physiological, genetical and anatomical/morphological attributes in plants. Most plants respond to anaerobiosis by switching their respiration from the oxidative (involving complete oxidation of pyruvate into CO2) to the fermentation (involving incomplete oxidation of pyruvate into lactate/ethanol) pathway. Fermentation pathway-related proteins (such as pyruvate decarboxylase and alcohol dehydrogenase enzymes) have been characterized to a significant extent. However, attempts made in altering levels of pyruvate decarboxylase and alcohol dehydrogenase proteins in transgenic plants have not yielded significantly enhanced levels of low O2/flooding stress tolerance as yet. Applying modern tools of transcriptome and proteome analysis, mechanism(s) responsible for low O2/flooding stress tolerance phenotype are being addressed. Progress made in understanding plant responses to low O2 stress is herewith discussed.

Item Type:Article
Source:Copyright of this article belongs to Taylor and Francis Ltd.
Keywords:Genomics; Low O2 Stress Response; Molecular Biology; Rice; Submergence Tolerance; Transgenic Plants
ID Code:15784
Deposited On:13 Nov 2010 12:33
Last Modified:15 Feb 2011 06:39

Repository Staff Only: item control page