您好,欢迎来到试剂仪器网! [登录] [免费注册]
试剂仪器网
位置:首页 > 产品库 > Pymetrozine(CGA 215944)
立即咨询
咨询类型:
     
*姓名:
*电话:
*单位:
Email:
*留言内容:
请详细说明您的需求。
*验证码:
 
Pymetrozine(CGA 215944)
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
Pymetrozine(CGA 215944)图片
CAS NO:123312-89-0
规格:98%
分子量:217.23
包装与价格:
包装价格(元)
250mg电议
500mg电议
1g电议
5g电议

产品介绍
Pymetrozine是同翅类的饲养抑制剂,可防止蚜虫种Mysuspersicae(Sulzer)传播花椰菜马铃薯毛霉病毒。
CAS:123312-89-0
分子式:C10H11N5O
分子量:217.23
纯度:98%
存储:Store at -20°C

Background:

Pymetrozine is a feeding inhibitor of Homoptera, in preventing transmission of cauliflower mosaic caulimovirus by the aphid species Myzus persicae (Sulzer).



Pymetrozine, a fast-acting and selective inhibitor of aphid feeding. In-situ studies with electronic monitoring of feeding behaviour. Pymetrozine, a pyridine azomethine compound, represents a novel insecticide with a selective activity against homopteran insects. It acts in a unique way: aphids are not knocked down on contact but seem to die of starvation. This implies an effect of Pymetrozine on feeding behaviour. The aim of the present work is to elucidate how and at which step Pymetrozine interferes with the complex mechanisms underlying phloem feeding. The effect of Pymetrozine, applied in various ways, on different phases of stylet penetration and feeding activity of individual aphids is studied using the Electrical Penetration Graph technique (EPG). Initial choice experiments indicated that Pymetrozine does not have a deterrent or antifeedant action. Topical application (150 ng/mg fresh weight) inhibits stylet insertion into the plant. When injected, less than 30 ng/mg is sufficient to produce the same effect. When Pymetrozine is systemically applied via plant spraying or root uptake, aphids started feeding normally. After some time, however, they withdrew their stylets from the phloem and walked around with unaffected locomotion. At low doses aphids eventually recovered and resumed feeding. High doses, however, irreversibly disrupted feeding and prevented stylet reinsertion. Aphid motility is not affected up to an estimated haemolymph concentration of 1 mM Pymetrozine. Aphids which eventually stopped feeding on Pymetrozine-treated plants showed EPGs with distorted salivation/ingestion patterns[2].


[1]. I D BEDFORD, et al. The effect of Pymetrozine, a feeding inhibitor of Homoptera, in preventing transmission of cauliflower mosaic caulimovirus by the aphid species Myzus persicae (Sulzer). Annals of Applied Biology. 1998 Jun; 132(3): 453-462 [2]. Paul Harrewijn, et al. Pymetrozine, a Fast-Acting and Selective Inhibitor of Aphid Feeding. In-situ Studies with Electronic Monitoring of Feeding Behaviour. Pest Management Science. 1997 Feb;49(2):130-140.