Disulfooxy fatty acids from the American bird grasshopper Schistocerca americana, elicitors of plant volatiles
Disulfooxy fatty acids from the American bird grasshopper Schistocerca americana, elicitors of plant volatiles
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DOI：
10.1073/pnas.0705947104
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发表时间：
2007-08-07
影响因子：
11.1
通讯作者：
Teal, Peter E. A.
中科院分区：
文献类型：
--
作者：
Alborn, Hans T.;Hansen, Trond V.;Teal, Peter E. A.
从美洲血吸虫（Schistocerca americana）的寄生虫中分离出一类以前未鉴定的化合物。这些化合物（此处称为“caeliferins”）由饱和和单不饱和硫酸化α-羟基脂肪酸组成，其中ω-碳被硫酸化羟基或羧基官能化，所述羧基通过酰胺键与甘氨酸缀合。该抗氧化剂含有一系列具有15-20个碳的脂肪酸链的这些化合物，并且比例不同。其中，16-碳类似物是主要的，并且当施用于玉米幼苗的受损叶片时，在诱导挥发性有机化合物的释放方面也是最活跃的。Caeliferins是在昆虫食草动物中鉴定的非鳞翅目诱导子。这增加了一类昆虫植食动物产生的植物反应激发子，提供了植物检测和响应广泛的昆虫植食动物产生的化合物的能力的进一步证据。
A previously unidentified class of compounds has been isolated from the regurgitant of the grasshopper species Schistocerca americana. These compounds (named here "caeliferins") are composed of saturated and monounsaturated sulfated a-hydroxy fatty acids in which the omega-carbon is functionalized with either a sulfated hydroxyl or a carboxyl conjugated to glycine via an amide bond. The regurgitant contains a series of these compounds with fatty acid chains of 15-20 carbons and in varying proportions. Of these, the 16-carbon analogs are predominant and are also most active in inducing release of volatile organic compounds when applied to damaged leaves of corn seedlings. Caeliferins are nonlepidopteran elicitors identified in insect herbivores. This adds a category of insect herbivore-produced elicitors of plant responses, providing further evidence of the ability of plants to detect and respond to a broad range of insect herbivore-produced compounds.