Chemical inducement of 2,4-dihyroxy-7-methoxy-1, 4-benzoxazin-3-one (DIMBOA) in wheat seedlings
文献类型: 外文期刊
第一作者: Liu, Xingang
作者: Liu, Xingang;Yao, Jianren;Dong, Fengshou;Zhao, Yuan
作者机构:
关键词: allelopathy;chemical inducement;DIMBOA;induced resistance;mechanism;wheat
期刊名称:ALLELOPATHY JOURNAL ( 影响因子:0.962; 五年影响因子:0.99 )
ISSN: 0971-4693
年卷期: 2008 年 21 卷 2 期
页码:
收录情况: SCI
摘要: HPLC quantitative analysis of 2,4-dihyroxy-7-methoxy-1, 4-benzoxazin-3-one (DIMBOA) in seedling of 3 wheat varieties (Zhongfu 9507, Jing 411 and Zhon-beizhong 39) shoots showed that DIMBOA concentration could be induced by several chemicals [Methyl jasmonate (JA), methyl salicylate (SA), triadimefon, potassium dihydrogen phosphate (KH2PO4) and cupric chloride (CuCl,)] in different concentrations. The inducement effects on DIMBOA content in hydroponic solution were not obvious, but the inducement effects on DIMBOA production of shoot in wheat seedlings followed the order : JA > SA > triadimefon > KH2PO4 > CUCl2. Common inducers such as JA and SA showed significant inducement effects, whereas, the effects of systemic fungicide triadimefon and the fertilizer KH2PO4 were weak. A heavy metal ion CuCl2, showed inhibitory effects on Zhongfu 9507. The optimal concentration of JA is 561.0 mu g/ml (2.5 mu mol/ml), which was much higher than any other treatments.
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