지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
The phenylpropanoid pathway plays an important role when plants are exposed to environmental stresses, such as wounding or pathogen attack. Its activity leads to the production of lignin, flavonoids, and phytoalexins. Cinnamate 4hydroxylase (C4H) is a cytochrome P450-dependent monooxygenase that catalyses the, hydroxylation of cinnamic acid to p-coumaric acid. We isolated C4H cDNA from Camptotheca acuminata and investigated the expression pattern of the C. acuminata C4H (CaC4H) gene following stress treatments. A search against the BLOCKS database of conserved protein motifs indicated that CaC4H shares common features with C4Hs from other species. C4H transcripts accumulated in the leaves in response to mechanical wounding or the application of molecules involved in the stress response, i.e., ethylene, methyl jasmonate, and hydrogen peroxide. Interestingly, the application of aminoethoxyvinylglycine, salicylic acid, or diphenylene iodonium, which are biosynthetic inhibitors of ethylene, methyl jasmonate, and hydrogen peroxide, respectively, did not inhibit this wound-induced expression. Based on these results, we suggest that C4H functions in response to various stresses in C. acuminata leaves.
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