Differential expression in response to biotic and abiotic stress from three potato glutaredoxins induced during suberization

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Title
Differential expression in response to biotic and abiotic stress from three potato glutaredoxins induced during suberization
Author(s)
W J Kang; Hyun Soon Kim; Y I Park; Hyouk Joung; Jae Heung Jeon
Bibliographic Citation
Journal of Plant Biology, vol. 50, no. 6, pp. 663-670
Publication Year
2007
Abstract
To determine their tissue-specific expression, three GRX genes were isolated from ESTs of a "6-hr post-suberization" cDNA library for Solanum tuberosum L cv. Desiree. Transcripts of a CCxC/S type GRX, StGRX1, accumulated to higher levels during the vegetative-growth stage in the leaves, stem, and roots. In contrast, transcripts of a CxxC/S type GRX, StGRX2, accumulated in the reproductive tissues, such as the flower and tuber. Differential expression of these three potato StGRXs suggest specific and unique physiological roles during plant development and in response to environmental cues. Therefore, we propose that StGRX1 is a housekeeping gene, functioning in the rapid defense against various abiotic and biotic stresses, while StGRX2 and -3 are selectively expressed during growth and in response to internal and external signals.
Keyword
biotic and abiotic stressesexpressionglutaredoxinpotato
ISSN
I000-0094
Publisher
Springer
DOI
http://dx.doi.org/10.1007/BF03030611
Type
Article
Appears in Collections:
Division of Research on National Challenges > Plant Systems Engineering Research > 1. Journal Articles
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