Frank WallerAxel MüllerKwi Mi ChungYun Kiam YapKimiyo NakamuraElmar WeilerHiroshi SanoNara Institute of Science and TechnologyRuhr-Universitat BochumJustus Liebig University GiessenMahidol University2018-08-202018-08-202006-08-01Plant and Cell Physiology. Vol.47, No.8 (2006), 1169-117414719053003207812-s2.0-33749030697https://repository.li.mahidol.ac.th/handle/20.500.14594/22880NtWIF 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.Mahidol UniversityAgricultural and Biological SciencesBiochemistry, Genetics and Molecular BiologyArticleSCOPUS10.1093/pcp/pcj079