Ornithine decarboxylase gene (CaODC1) is specifically induced during TMV-mediated but salicylate-independent resistant response in hot pepper [Capsicum annuum]
2004
Yoo, T.H. (Korea Univ., Seoul (Korea R.)) | Park, C.J. | Ham, B.K. | Kim, K.J. | Paek, K.H.
A gene encoding putative ornithine decarboxylase (ODC) has been isolated by differential screening of a cDNA library from the resistant hot pepper (Capsicum annuum L.) inoculated with avirulent tobacco mosaic virus (TMV) pathotype P sub0. In hot pepper plants, transcripts of the caODCI (C. annuum ODCI) gene started to accumulate at 24 h post-inoculation of TMV-P sub0 and the signal was spread systemically. The transcript level of CaODCI was increased rapidly in a hot pepper resistant to Xanthomonas campestris pv. vesicatoria (Xcv) but not in a susceptible hot pepper after inoculation. These results suggest possible role(s) for CaODCI in plant defense against a broad range of pathogens including viruses and bacteria.
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