| 爵床提取物的抑菌杀虫活性研究 |
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| 引用本文： | 郭明程,李保同,汤丽梅,平新亮,李晓花,梁同军.爵床提取物的抑菌杀虫活性研究[J].中国生态农业学报,2013,21(2):212-216. |
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| 作者姓名： | 郭明程 李保同 汤丽梅 平新亮 李晓花 梁同军 |
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| 作者单位： | 江西农业大学农学院 南昌 330045;江西农业大学农学院 南昌 330045;江西农业大学农学院 南昌 330045;浙江省农业科学院柑橘研究所 台州 318020;江西庐山植物园 庐山 332900;江西庐山植物园 庐山 332900 |
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| 基金项目： | 国家自然科学基金项目(30960081)和江西省教育厅项目(GJJ11395)资助 |
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| 摘 要： | 爵床(Justicia procumbens var.procumbens L.)是一种传统中药。为探明爵床提取物的抑菌杀虫活性,采用冷浸和超声波提取相结合的方法,分别获得了爵床甲醇、氯仿、丙酮、乙酸乙酯和正己烷等溶剂提取物;并应用抑菌圈法研究了5种提取物对柑橘炭疽病菌(Colletotrichum gloeosprioides)、芦笋茎枯病菌(Phomopsisasparagi)、稻瘟病菌(Pyricularia grisea)、棉花红腐病菌(Fusarium graminearum)和草莓灰霉病菌(Botrytiscinerea)等5种植物病原真菌的抑制效果,测定了甲醇提取物对柑橘炭疽病、芦笋茎枯病、草莓灰霉病和柑橘溃疡病(Xanthomonas campestris)等4种植物病菌及白蚊伊蚊(Aedes albopictus)、家蝇(Musca domestica)和菜青虫(Pieris rapae)等3种害虫的毒力。结果表明,不同极性溶剂提取物8 mg.mL 1对5种植物病原真菌均有一定的抑制作用,其中甲醇提取物对柑橘炭疽病菌、芦笋茎枯病菌、草莓灰霉病菌的抑制率均达50%以上。爵床甲醇提取物具有较强的抑菌杀虫活性,对柑橘炭疽病菌、芦笋茎枯病菌和草莓灰霉病菌菌丝生长的抑制中浓度(EC50)分别为5.94 mg.mL 1、4.61 mg.mL 1和5.27 mg.mL 1,EC90分别为63.69 mg.mL 1、58.01 mg.mL 1和54.57 mg.mL 1;0.25~1.00 mg.mL 1爵床甲醇提取物对柑橘溃疡病病菌显示强抑菌作用,0.125 mg.mL 1显示中度抑菌作用,最小抑制浓度(MIC)为0.062 5 mg.mL 1;爵床甲醇提取物对白蚊伊蚊、家蝇和菜青虫的致死中浓度(LC50)分别为0.195 8 mg.mL 1、0.351 4 mg.mL 1和0.287 7 mg.mL 1,LC95分别为0.988 4 mg.mL 1、3.053 2mg.mL 1和2.584 4 mg.mL 1。因此,爵床提取物作为生物农药,在农业生产中具有较好的应用前景。
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| 关 键 词： | 爵床 提取物 冷浸提取 杀菌活性 杀虫活性 生物农药 |
| 收稿时间： | 2012/8/14 0:00:00 |
| 修稿时间： | 2012/10/18 0:00:00 |
Fungicide and insecticide activity of Justicia procumbens extracts |
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| GUO Ming-Cheng,LI Bao-Tong,TANG Li-Mei,PING Xin-Liang,LI Xiao-Hua and LIANG Tong-Jun.Fungicide and insecticide activity of Justicia procumbens extracts[J].Chinese Journal of Eco-Agriculture,2013,21(2):212-216. |
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| Authors: | GUO Ming-Cheng LI Bao-Tong TANG Li-Mei PING Xin-Liang LI Xiao-Hua and LIANG Tong-Jun |
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| Institution: | College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China;College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China;College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China;Institute of Citrus Research, Zhejiang Academy of Agricultural Sciences, Taizhou 318020, China;Jiangxi Lushan Arboretum, Lushan 332900, China;Jiangxi Lushan Arboretum, Lushan 332900, China |
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| Abstract: | Justicia procumbens is traditional Chinese medicine herb. To confirm fungicidal and insecticidal activity of J. procumbens extracts, methanol, chloroform, acetone, ethyl acetate and hexane extracts were obtained from J. procumbens by the combined method of cold-soaking and ultrasonic extraction. Extract inhibitory effects were studied using the inhibition zone method involving five species of plant pathogenic fungus-Colletotrichum gloeosprioides, Phomopsis asparagi, Pyricularia grisea, Fusarium graminearum and Botrytis cinerea. Methanol extract toxicity against four species of plant pathogenic fungus and bacteria (C. gloeosprioides, P. asparagi, B. cinerea and Xanthomonas campestris) and three species of insects (Aedes albopictus, Musca domestica and Pieris rapae) were also assayed. Results showed that 8 mg?mL-1 extracts of J. procumbens with different polar solvents had some inhibitory effects on five species of plant pathogenic fungus. The inhibition rates of methanol extract against C. gloeosprioides, P. asparagi and B. cinerea were over 50%. Methanol extract from J. procumbens had better fungicidal and insecticidal activity. EC50 of methanol extract against mycelium growth of C. gloeosprioides, P. asparagi and B. cinerea were 5.94 mg?mL-1, 4.61 mg?mL-1 and 5.27 mg?mL-1, respectively. The corresponding EC90 were 63.69 mg?mL-1, 58.01 mg?mL-1 and 54.57 mg?mL -1, respectively. Methanol extract at 0.25~1.00 mg?mL-1 showed strong inhibitory activity against X. campestris. The resultant extract at 0.125 mg?mL-1 showed moderate inhibitory activity. Methanol extract MIC was 0.062 5 mg?mL-1. Methanol extract LC50 against A. albopictus, M. domestica and P. rapae were 0.195 8 mg?mL-1, 0.351 4 mg?mL-1 and 0.287 7 mg?mL-1, respectively. The corresponding EC95 were 0.988 4 mg?mL-1, 3.053 2 mg?mL-1 and 2.584 4 mg?mL-1, respectively. This suggested that J. procumbens extracts had better application prospects as a biological pesticide in agricultural production. |
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| Keywords: | Justicia procumbens var procumbens L Extract Cold-soaking extraction Fungicidal activity Insecticidal activity Biology pesticide |
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