Curcuminoids Inhibit Botrytis cinerea and Colletotrichum gloeosporioides  

姜黄素类物质对番茄灰霉病菌和芒果炭疽病菌的抑制作用

作　　者：ZHOU Li-ting HE Yan-biao GUO Kai-fa LI Yi-cheng LIU Xiu 周丽婷;何衍彪;郭开发;李意成;刘秀(湖南人文科技学院农业与生物技术学院,湖南省高校农作物有害生物绿色防控重点实验室,湖南娄底417000;娄底市农业科学研究所,湖南娄底417000)

机构地区：[1]Key Laboratory of Green Control of Crop Pests in Hunan Higher Education,College of Agriculture and Biotechnology,Hunan University of Humanities,Science and Technology,Loudi 417000,PRC [2]Loudi Institute of Agricultural Sciences,Loudi 417000,PRC

出　　处：《Agricultural Science & Technology》2024年第2期33-37,共5页农业科学与技术（英文版）

基　　金：湖南人文科技学院博士科研启动费项目(82500250);湖南省普通高等学校科技创新团队。

摘　　要：The growth rate method was adopted to measure the inhibitory effect of curcumin,tetrahydrocurcumin,demethoxycurcumin,and bisdemethoxycurcumin on the mycelial growth of Botrytis cinerea and Colletotrichum gloeosporioides.The results showed that the four curcuminoids inhibited the mycelial growth of the two pathogens in a concentration-dependent manner.Bisdemethoxycurcumin at 600 mg/L exerted the strongest inhibitory effect on the mycelial growth of B.cinerea and C.gloeosporioides,with the relative inhibition rates of 98.19%and 100%,respectively;followed by demethoxycurcumin;curcumin exerted the worst inhibitory effect.Toxicity test results also showed that four curcuminoids all had a certain toxicity to B.cinerea and C.gloeosporioides,among which,bisdemethoxycurcumin exhibited the strongest toxicity,with the EC_(50)of 131.125 and 122.235 mg/L,respectively;while curcumin had the lowest toxicity,with the EC_(50)of 273.143 and 194.943 mg/L,respectively.该文采用生长速率法研究了4种姜黄素类物质姜黄素、四氢姜黄素、去甲氧基姜黄素、双去甲氧基姜黄素对番茄灰霉病菌丝和芒果炭疽病菌丝的抑制作用。结果表明:这4种姜黄素类物质对番茄灰霉病菌丝和芒果炭疽病菌丝均有不同程度的抑制作用,抑制率随其浓度的增大而提高。其中双去甲氧基姜黄素对两种病原菌菌丝的抑制效果最好,浓度为600 mg/L时对番茄灰霉病菌和芒果炭疽病菌抑制率分别为98.19%和100%;其次为去甲氧基姜黄素;姜黄素的抑制作用最小。毒力测定结果也表明4种姜黄素类物质对两种病菌均具有一定的毒力作用。其中双去甲氧基姜黄素的毒力最强,其对番茄灰霉病菌和芒果炭疽病菌的有效中浓度EC_(50)分别为131.125和122.235 mg/L;姜黄素的毒力作用最小,有效中浓度EC_(50)分别为273.143和194.943 mg/L。

关 键 词：CURCUMIN CURCUMINOIDS Tomato gray mold Mango anthracnose Antifungal activity 

分 类 号：S436.412.13[农业科学—农业昆虫与害虫防治] S436.67[农业科学—植物保护]