4-羟基-3-甲氧基肉桂酸衍生物除草活性研究  

Study on herbicidal activity of 4-hydroxy-3-methoxy cinnamic acid and its derivatives

作　　者：张明月[1] 刘策[1] 杨鹏[1] 张利辉[1] 董金皋[1] 

机构地区：[1]河北农业大学植物保护学院,河北保定071001

出　　处：《河北农业大学学报》2017年第1期76-80,共5页Journal of Hebei Agricultural University

基　　金：国家自然科学基金(31401759);留学人员科技活动择优资助项目

摘　　要：为了寻找新的除草活性化合物,利用茎叶处理、叶绿体光密度测定及相对电导率测定等方法对天然产物4-羟基-3-甲氧基肉桂酸及其3个衍生物进行了除草活性研究。结果表明:4-羟基-3-甲氧基肉桂酸、4-羟基-3-甲氧基肉桂酸酰肼、4-乙酰氧基-3-甲氧基肉桂酸和4-羟基-3-甲氧基肉桂酸乙酯在光照条件下对马唐的抑制中浓度(IC50)分别为4.31,1.97,4.26和0.67mg/mL;黑暗条件下分别为2.65,0.83,2.54和0.36mg/mL;4-乙酰氧基-3-甲氧基肉桂酸对马唐叶绿体光密度的影响呈上升趋势;4-羟基-3-甲氧基肉桂酸酰肼、4-乙酰氧基-3-甲氧基肉桂酸和4-羟基-3-甲氧基肉桂酸乙酯处理后,马唐的相对电导率分别增加了19.24%,11.96%和18.33%。可见这3个衍生物的除草活性均高于母体化合物。In order to get new compounds with high herbicidal activity,apreliminary research of herbicidal activity to Digitaria sanguinalis of 4-hydroxy-3-methoxy cinnamic acid and its three derivatives was performed by using the method of foliar treatment,optical density determination of chloroplast and relative conductivity determination.The results showed that the inhibition concentration（IC50）of 4-hydroxy-3-methoxy cinnamic acid,4-hydroxy-3-methoxy cinnamic acid hydrazide,4-acetoxy-3-methoxy cinnamic acid and 4-hydroxy-3-methoxycinnamate to D.sanguinalis in light was 4.31mg/mL,1.97mg/mL,4.26mg/mL and 0.67mg/mL,respectively;and in darkness the IC50 of them was 2.65 mg/mL,0.83mg/mL,2.54 mg/mL and 0.36mg/mL,respectively.There was an increasing trend of the effect of 4-acetoxy-3-methoxy cinnamic acid on the chloroplast optical density of D.sanguinalis.And the relative conductivity of D.sanguinalis increased by 19.24%,11.96% and 18.33% after treating by 4-hydroxy-3-methoxy cinnamic acid hydrazide,4-acetoxy-3-methoxy cinnamic acid and 4-hydroxy-3-methoxycinnamate.It indicated that the herbicidal activities of the three derivatives were higher than that of the parent compound.

关 键 词：4-羟基-3-甲氧基肉桂酸衍生物 作用机制 天然除草剂 

分 类 号：S482.4[农业科学—农药学]