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首页> 外文期刊>The Asian and Australasian Journal of Plant Science and Biotechnology >Effects of Different Classes of Insecticides on Cotton Leaf Secondary Metabolites
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Effects of Different Classes of Insecticides on Cotton Leaf Secondary Metabolites

机译：不同种类的杀虫剂对棉叶次生代谢产物的影响

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摘要

The influence of 5 insecticides: Karate, Sumi-alfa, Cypermethrin (pyrethroids), Avaunt (oxadizine) and Carbophos (organophosphate) on the nutritious soluble proteins, sugar quantity and the quantity of terpenoid aldehydes of cotton leaves on the plantdefense mechanism against insects was studied. Field experiments were conducted on cotton plants before flowering. Treatment with pyrethroid insecticides changed plant leaf secondary metabolites significantly compared to control leaves treated with water. Colorimetrical analysis showed that Sumi-alfa, Cypermethrin and Avaunt increased the quantity of soluble proteins 5.8, 6.2 and 5.4 times (on the 10th, 10th, 16th days), and the quantity of reducing sugars to 43.7%, 51.5% and 43.3% (on the 10th, 7th, 10th days) over the control, respectively. An increase in the population of sucking insects such as aphids in the treated plants may be due to the more nutritious quality of the leaves compared to insect populations on the control plants. In addition, HPLC analysis of leaves showed the total concentration of defensive terpenoid aldehydes: gossypol, heliocides HI, H2, H3, H4 and their precursors hemigossypolone, and methylhemigossypolone were reduced in all insecticide-sprayed samples except for Carbophos. Avaunt and Karate decreased the total sum of these defensive compounds most of all. On the 10th day of the treatment with Avaunt and on the 1st day with Karate terpenoid aldehydes lowered 3.1 and 4.6 times, respectively. Sumi-alfa on the 4th day and Cypermethrin on the 7th day lowered terpenoids to 40% and 19%, the minimum level. In leaf samples taken on the 1st, 4th and 7th days of the treatment with Carbophos, the quantity of defensive terpenoid aldehydes was 12, 33 and 19% higher than the control.This was followed by a slump in which their quantity was 38, 40 and 36% lower than the control. These results indicate that treatment with pyrethroid insecticides influences cotton plant secondary metabolites and makes the plant more attractive to pests.
机译：空手道，苏米-阿尔法，氯氰菊酯（拟除虫菊酯），Avaunt（草二胺）和Carbophos（有机磷酸酯）这5种杀虫剂对棉叶营养可溶性蛋白质，糖含量和萜类醛醛含量的影响是植物防御昆虫的机理。研究。开花前对棉株进行了田间试验。与用水处理的对照叶片相比，用拟除虫菊酯杀虫剂处理显着改变了植物叶片的次生代谢产物。比色分析表明，苏米-阿尔法，氯氰菊酯和阿瓦特在第10、10、16天分别将可溶性蛋白的含量提高了5.8、6.2和5.4倍，还原糖的含量提高了43.7％，51.5％和43.3％（分别在第10、7、10天）。经处理的植物中诸如蚜虫的吸食昆虫的种群增加可能是由于与对照植物上的昆虫种群相比，叶片的营养价值更高。此外，叶片的HPLC分析显示防御性类萜醛的总浓度：除Carbophos外，在所有喷洒了农药的样品中棉酚，Helicocides HI，H2，H3，H4及其前体hemosgossypolone和甲基hemigossypolone均降低。最重要的是，Avaunt和Karate减少了这些防御性化合物的总和。在用Avaunt治疗的第10天和用空手道萜类化合物醛治疗的第1天分别降低了3.1和4.6倍。第4天的Sumi-alfa和第7天的氯氰菊酯将萜类化合物降至最低水平40％和19％。在用Carbophos处理的第1天，第4天和第7天采集的叶片样品中，防御性萜类醛的含量分别比对照高12、33和19％，其次是暴跌，其数量分别为38、40和40并且比对照组低36％。这些结果表明用拟除虫菊酯类杀虫剂处理会影响棉花植物的次生代谢产物，并使植物对害虫更具吸引力。

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