Article
Single amino acid substitution in the methyltransferase domain of Paprika mild mottle virus replicase proteins confers the ability to overcome the high temperature-dependent Hk gene-mediated resistance in Capsicum plants.
Virus research - 1 Mar 2009
Matsumoto Katsutoshi, Johnishi Kousuke, Hamada Hiroyuki, Sawada Hiromasa, Takeuchi Shigeharu, Kobayashi Kappei, Suzuki Kazumi, Kiba Akinori, Hikichi Yasufumi
Abstract excerpt
Capsicum plants harboring the Hk gene (Hk) show resistance to Paprika mild mottle virus (PaMMV) at 32 degrees C but not 24 degrees C. To identify the viral elicitor that activates the Hk-mediated resistance, several chimeric viral genomes were constructed between PaMMV and Tobacco mosaic virus-L. Infection patterns of these chimeric viruses in Hk-harboring plants revealed responsibility of PaMMV replicase genes...
Topics
- Amino Acid Substitution
- Capsicum
- Gene Expression Regulation, Plant
- Genes, Plant
- Genome, Viral
- Hot Temperature
- Immunity, Innate
- Methyltransferases
- Mutation
- Plant Diseases
- RNA, Viral
- RNA-Dependent RNA Polymerase