Arid
DOI10.1111/j.1365-313X.2007.03119.x
Co(i)-ordinating defenses: NaCOI1 mediates herbivore-induced resistance in Nicotiana attenuata and reveals the role of herbivore movement in avoiding defenses
Paschold, Anja; Halitschke, Rayko; Baldwin, Ian T.
通讯作者Baldwin, Ian T.
来源期刊PLANT JOURNAL
ISSN0960-7412
出版年2007
卷号51期号:1页码:79-91
英文摘要

Arabidopsis and tomato plants mutated in the F-box protein COI1 mediating jasmonate (JA) responses are more susceptible to herbivores in laboratory trials, but the exact mechanisms of COI1-mediated resistance are not known. We silenced COI1 by transformation with an inverted repeat construct (ir-coi1) in Nicotiana attenuata, a plant the direct and indirect defenses of which against various herbivores have been well studied. ir-coi1 plants are male sterile and impaired in JA-elicited direct [nicotine, caffeoylputrescine and trypsin proteinase inhibitor (TPI) activity] and indirect (cis-alpha-bergamotene emission) defense responses; responses not elicited by JA treatment (ethylene production and flower TPI activity) were unaffected. Larvae of Manduca sexta, a common herbivore of N. attenuata, gained three times more mass feeding on ir-coi1 than on wild-type (WT) plants in glasshouse experiments. By regularly moving caterpillars to unattacked leaves of the same plant, we demonstrate that larvae on WT plants can grow and consume leaves as fast as those on ir-coi1 plants, a result that underscores the role of COI1 in mediating locally induced resistance in attacked leaves, and the importance of herbivore movement in avoiding the induced defenses of a plant. When transplanted into native habitats in the Great Basin Desert, ir-coi1 plants suffer greatly from damage by the local herbivore community, which includes herbivores not commonly found on N. attenuata WT plants. Choice assays with field-grown plants confirmed the increased attractiveness of ir-coi1 plants for both common and unusual herbivores. We conclude that NaCOI1 is essential for induced resistance in N. attenuata, and that ir-coi1 plants highlight the benefits of herbivore movement for avoiding induced defenses.


英文关键词Coronatine insensitive1 induced resistance Manduca sexta Tupiocoris notatus Epitrix hirtipennis caterpillar movement Nicotiana attenuata
类型Article
语种英语
国家Germany ; USA
收录类别SCI-E
WOS记录号WOS:000247478200006
WOS关键词MANDUCA-SEXTA LEPIDOPTERA ; PROTEINASE-INHIBITOR PRODUCTION ; INDUCED PLANT VACCINATION ; MOLECULAR-INTERACTIONS ; JASMONIC ACID ; ARABIDOPSIS ; ACCUMULATION ; EXPRESSION ; RESPONSES ; SPHINGIDAE
WOS类目Plant Sciences
WOS研究方向Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/155713
作者单位(1)Max Planck Inst Chem Ecol, Dept Mol Ecol, D-07745 Jena, Germany;(2)Cornell Univ, Dept Ecol & Evolutionary Biol, Ithaca, NY 14853 USA
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Paschold, Anja,Halitschke, Rayko,Baldwin, Ian T.. Co(i)-ordinating defenses: NaCOI1 mediates herbivore-induced resistance in Nicotiana attenuata and reveals the role of herbivore movement in avoiding defenses[J],2007,51(1):79-91.
APA Paschold, Anja,Halitschke, Rayko,&Baldwin, Ian T..(2007).Co(i)-ordinating defenses: NaCOI1 mediates herbivore-induced resistance in Nicotiana attenuata and reveals the role of herbivore movement in avoiding defenses.PLANT JOURNAL,51(1),79-91.
MLA Paschold, Anja,et al."Co(i)-ordinating defenses: NaCOI1 mediates herbivore-induced resistance in Nicotiana attenuata and reveals the role of herbivore movement in avoiding defenses".PLANT JOURNAL 51.1(2007):79-91.
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