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Original Articles

A Basic Class I Chitinase Expression in Winged Bean is Up-regulated by Osmotic Stress

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Pages 1663-1668 | Received 22 Dec 2000, Accepted 01 Mar 2001, Published online: 22 May 2014
 

Abstract

We isolated a cDNA for basic class I chitinase (ChitiWb1). ChitiWb1 cDNA encodes a protein that consists of 315 amino acid residues and has a signal peptide. Northern blot analysis indicated that the class I chitinase mRNA in leaves and cultured cells of winged bean was increased by treatments with NaCl, KCl, CaCl2, mannitol or saccharose, but not with abscisic acid. Thus, class I chitinase expression was shown to be up-regulated by osmotic stress.

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