Heme oxygenase is involved in H2O2-induced lateral root formation in apocynin-treated rice | Faculty Open Information System

Heme oxygenase is involved in H2O2-induced lateral root formation in apocynin-treated rice

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Heme oxygenase is involved in H2O2-induced lateral root formation in apocynin-treated rice
出版類型SCI(Sciences Citation Index)
出版年度2013
AuthorsYi-Hsuan Chen, 陳怡萱, Yun-Yang Chao 趙雲洋, Yun Yen Hsu 許雲雁, & Ching-Huei Kao 高景輝
開始頁219
頁數7
出版日期2013 / 2
其他編號0000
中文摘要

Apocynin, also known as acetovanillone, is a natural organic compound structurally related to vanillin. Information concerning the effect of apocynin on plants is limited. In this study, we examined the effect of apocynin on lateral root (LR) formation in rice. Treatment with apocynin induced LR formation and increased H2O2 production, but had no effect on nitric oxide production. Diphenyleneiodonium chloride, an inhibitor of H2O2 generating NADPH oxidase, was effective in reducing apocynin-induced H2O2 production and LR formation. Apocynin treatment also increased superoxide dismutase activity and decreased catalase activity. H2O2 application was able to increase the number of LRs. Moreover, H2O2 production caused by H2O2 and apocynin was localized in the root area corresponding to the LR emergence. Treatment with H2O2 and apocynin also increased heme oxygenase (HO) activity and induced OsHO1 mRNA expression. Lateral root formation and HO activity induced by H2O2 and apocynin were reduced by Zn protoporphyrin IX (the specific inhibitor of HO). Our data suggest that both H2O2 and HO are required for apocynin-induced LR formation in rice.

網址http://link.springer.com/article/10.1007%2Fs00299-012-1356-3
期刊名稱Plant Cell Rep
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