Publication: Expression of a WIPK-activated transcription factor results in increase of endogenous salicylic acid and pathogen resistance in tobacco plants
1
Issued Date
2006-08-01
Resource Type
ISSN
14719053
00320781
00320781
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2-s2.0-33749030697
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Mahidol University
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SCOPUS
Bibliographic Citation
Plant and Cell Physiology. Vol.47, No.8 (2006), 1169-1174
Suggested Citation
Frank Waller, Axel Müller, Kwi Mi Chung, Yun Kiam Yap, Kimiyo Nakamura, Elmar Weiler, Hiroshi Sano Expression of a WIPK-activated transcription factor results in increase of endogenous salicylic acid and pathogen resistance in tobacco plants. Plant and Cell Physiology. Vol.47, No.8 (2006), 1169-1174. doi:10.1093/pcp/pcj079 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/22880
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Title
Expression of a WIPK-activated transcription factor results in increase of endogenous salicylic acid and pathogen resistance in tobacco plants
Abstract
NtWIF is a transcription factor activated upon phosphorylation by wound-induced protein kinase (WIPK) in tobacco plants. Transgenic tobacco plants overexpressing NtWIF exhibited constitutive accumulation of transcripts for pathogenesis-related genes, PR-1a and PR-2. Salicylic acid levels were 50-fold higher than those in wild-type plants. The levels of jasmonic acid and IAA did not significantly differ, while an increase of ABA upon wounding was delayed by 3 h in the transgenics. When challenged with tobacco mosaic virus, lesions developed faster and were smaller in the transgenic plants. The results suggest that NtWIF is likely to influence salicylic acid biosynthesis, being located downstream of WIPK. © The Author 2006. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. All rights reserved.