Identification of a CaRAV1 possessing an AP2/ERF and B3 DNA-binding domain from pepper leaves infected with Xanthomonas axonopodis pv. glycines 8ra by differential display
- 作者：Soo-Yong Kim ; Young-Cheol Kim ; Jeong-Hee Lee ; Sang-Keun Oh ; Eunsook Chung ; Sanghyeob Lee ; Yong-Hwan Lee ; Doil Choi and Jeong Mee Park
- 关键词：AP2/ERF-domain ; Chili pepper ; Host resistance ; Hypersensitive response ; Non-host resistance ; RAV transcription factor
- 刊名：Biochimica et Biophysica Acta (BBA)/Gene Structure and Expression
- 出版年：2005
- 期刊代码：15_01674781
- 类别：bio
- 出版时间：2005
- 卷：1729
- 期：3
- 页码：141-146
- 文件大小：439 K
摘要
We isolated a cDNA clone, CaRAV1, which exhibited significant similarity to those of Arabidopsis RAV proteins containing AP2/ERF and B3-like DNA-binding domains. CaRAV1 expression was rapidly and specifically induced in both host and non-host resistant responses against bacterial pathogens in the chili pepper plant. CaRAV1 also strongly increased following salicylic acid and ethephon treatments, whereas methyl-jasmonate only had mild effects. Furthermore, CaRAV1 transcript levels were also investigated in response to ABA and abiotic stress. No significant CaRAV1 expression was evident following ABA, mannitol, or cold treatments. These observations collectively provide initial evidence that the pepper RAV transcription factor homolog may function in plant defense responses.