We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Overexpression of NtERF5, belonging to the ethylene response factor gene family, inhibits potato virus X infection and enhances expression of jasmonic acid/ethylene signaling marker genes in tobacco.
- Authors
Suzuki, Hiyori; Ito, Tomoki; Ogata, Takuya; Tsukahara, Yuki; Nelson, Richard S.; Sasaki, Nobumitsu; Matsushita, Yasuhiko
- Abstract
Transcription factors belonging to the family of ethylene response factors (ERFs) in plants function in disease resistance to pathogens. One of the tobacco ERF genes, NtERF5, inhibits the accumulation of tobacco mosaic virus (genus Tobamovirus) when overexpressed in tobacco carrying the resistance gene N. Here, we report that NtERF5 can function as a transcriptional activator through binding of the GCC-box in planta. We then determined whether overexpression of NtERF5 in tobacco lacking the N gene (nn tobacco) inhibited infection by potato virus X (PVX: genus Potexvirus). Transient overexpression of NtERF5 inhibited the accumulation of PVX without affecting virus spread and increased the transcript levels of NtPRB-1b and NtPR6, which are jasmonic acid/ethylene-signaling marker genes encoding pathogenesis-related (PR) proteins. Stable overexpression of NtERF5 in nn tobacco also resulted in decreased PVX accumulation and the induction of the expression of NtPRB-1b and NtPR6. Our results revealed that overexpression of NtERF5 limited successful infection and accumulation of PVX, suggesting the role of NtERF5 as a positive regulator of basal defense against virus infection.
- Subjects
POTATO virus X; GENE expression; GENE families; VIRUS diseases; JASMONIC acid; POTATO virus Y; POTATOES
- Publication
Journal of General Plant Pathology, 2024, Vol 90, Issue 3, p125
- ISSN
1345-2630
- Publication type
Article
- DOI
10.1007/s10327-023-01166-w