Generalist and specialist lepidopteran larvae elicit different transcriptional responses in Nicotiana attenuata, which correlate with larval FAC profiles

被引：82

作者：

Voelckel, C ^{[1
]}

Baldwin, IT ^{[1
]}

机构：

[1] Max Planck Inst Chem Ecol, D-07745 Jena, Germany

来源：

ECOLOGY LETTERS | 2004年 / 7卷 / 09期

关键词：

elicitors; fatty acid-amino acid conjugates; induced plant defence; noctuidae; sphingidae;

D O I：

10.1111/j.1461-0248.2004.00633.x

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Unlike generalist herbivores, specialists are believed to share a history of evolutionary interactions with their host plants. We determine whether a specialist lepidopteran species alters plant metabolism differently from two generalist species despite similarities in feeding mode and larval elicitors. With a cDNA microarray enriched in defence-related genes, we compared the transcriptional responses elicited in the native tobacco Nicotiana attenuata by the oligophagous larvae of Manduca sexta and the polyphagous larvae of Heliothis virescens and Spodoptera exigua, which are all members of N. attenuata's natural herbivore community. We found the differences in plant responses to be correlated with the profile of larval elicitors [fatty acid-amino acid conjugates (FAC)] and discuss how variation in FAC composition may shape the interaction between generalist or specialist lepidopteran larvae and plants.

引用

页码：770 / 775

页数：6

共 33 条

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[2]

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