Journal
PLANT PHYSIOLOGY AND BIOCHEMISTRY
Volume 48, Issue 6, Pages 451-460Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.plaphy.2010.02.005
Keywords
Abiotic stress; Catalase (CAT); Panax ginseng CA Meyer
Categories
Funding
- Kyung Hee University [KHU-20090444]
- Agriculture and Forestry, Ministry of Agriculture and Forestry, Republic of Korea
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A cDNA clone containing a catalase (CATO gene, designated PgCat1, was isolated from Panax ginseng C.A. Meyer (Korean ginseng). PgCat1 is predicted to encode a precursor protein of 492 amino acid residues, and its sequence shares high degrees of homology with a number of other CAT1s. Genomic DNA hybridization analysis indicated that PgCat1 represents a multi-gene family. Reverse transcriptase (RT)-PCR results showed that PgCat1 expressed at different levels in leaves, stem, roots of P. ginseng seedlings. Different stresses, heavy metals, plant hormones, osmotic agents, high light irradiance, abiotic stresses, triggered a significant induction of PgCat1. The positive responses of PgCat1 to the various stimuli suggested that P. ginseng PgCat1 may help to protect the plant against reactive oxidant related environmental stresses. (C) 2010 Elsevier Masson SAS. All rights reserved.
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