Concerted biosynthesis of an insect elicitor of plant volatiles

P. W. Paré, H. T. Alborn, J. H. Tumlinson

Research output: Contribution to journalArticle

117 Citations (Scopus)

Abstract

A variety of agricultural plant species, including corn, respond to insect herbivore damage by releasing large quantities of volatile compounds and, as a result, become highly attractive to parasitic wasps that attack the herbivores. An elicitor of plant volatiles, N-(17-hydroxylinolenoyl)-L- glutamine, named volicitin and isolated from beet armyworm caterpillars, is a key component in plant recognition of damage from insect herbivory. Chemical analysis of the oral secretion from beet armyworms that have fed on 13C- labeled corn seedlings established that the fatty acid portion of volicitin is plant derived whereas the 17-hydroxylation reaction and the conjugation with glutamine are carried out by the caterpillar by using glutamine of insect origin. Ironically, these insect-catalyzed chemical modifications to linolenic acid are critical for the biological activity that triggers the release of plant volatiles, which in turn attract natural enemies of the caterpillar.

Original languageEnglish (US)
Pages (from-to)13971-13975
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume95
Issue number23
DOIs
StatePublished - Nov 10 1998

Fingerprint

Herbivory
Insects
Glutamine
Beta vulgaris
Zea mays
Plant Structures
Wasps
alpha-Linolenic Acid
Hydroxylation
Seedlings
Fatty Acids
volicitin

All Science Journal Classification (ASJC) codes

  • General

Cite this

@article{921ec91b8e214368bdd03f1dcc84bf7d,
title = "Concerted biosynthesis of an insect elicitor of plant volatiles",
abstract = "A variety of agricultural plant species, including corn, respond to insect herbivore damage by releasing large quantities of volatile compounds and, as a result, become highly attractive to parasitic wasps that attack the herbivores. An elicitor of plant volatiles, N-(17-hydroxylinolenoyl)-L- glutamine, named volicitin and isolated from beet armyworm caterpillars, is a key component in plant recognition of damage from insect herbivory. Chemical analysis of the oral secretion from beet armyworms that have fed on 13C- labeled corn seedlings established that the fatty acid portion of volicitin is plant derived whereas the 17-hydroxylation reaction and the conjugation with glutamine are carried out by the caterpillar by using glutamine of insect origin. Ironically, these insect-catalyzed chemical modifications to linolenic acid are critical for the biological activity that triggers the release of plant volatiles, which in turn attract natural enemies of the caterpillar.",
author = "Par{\'e}, {P. W.} and Alborn, {H. T.} and Tumlinson, {J. H.}",
year = "1998",
month = "11",
day = "10",
doi = "10.1073/pnas.95.23.13971",
language = "English (US)",
volume = "95",
pages = "13971--13975",
journal = "Proceedings of the National Academy of Sciences of the United States of America",
issn = "0027-8424",
number = "23",

}

Concerted biosynthesis of an insect elicitor of plant volatiles. / Paré, P. W.; Alborn, H. T.; Tumlinson, J. H.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 95, No. 23, 10.11.1998, p. 13971-13975.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Concerted biosynthesis of an insect elicitor of plant volatiles

AU - Paré, P. W.

AU - Alborn, H. T.

AU - Tumlinson, J. H.

PY - 1998/11/10

Y1 - 1998/11/10

N2 - A variety of agricultural plant species, including corn, respond to insect herbivore damage by releasing large quantities of volatile compounds and, as a result, become highly attractive to parasitic wasps that attack the herbivores. An elicitor of plant volatiles, N-(17-hydroxylinolenoyl)-L- glutamine, named volicitin and isolated from beet armyworm caterpillars, is a key component in plant recognition of damage from insect herbivory. Chemical analysis of the oral secretion from beet armyworms that have fed on 13C- labeled corn seedlings established that the fatty acid portion of volicitin is plant derived whereas the 17-hydroxylation reaction and the conjugation with glutamine are carried out by the caterpillar by using glutamine of insect origin. Ironically, these insect-catalyzed chemical modifications to linolenic acid are critical for the biological activity that triggers the release of plant volatiles, which in turn attract natural enemies of the caterpillar.

AB - A variety of agricultural plant species, including corn, respond to insect herbivore damage by releasing large quantities of volatile compounds and, as a result, become highly attractive to parasitic wasps that attack the herbivores. An elicitor of plant volatiles, N-(17-hydroxylinolenoyl)-L- glutamine, named volicitin and isolated from beet armyworm caterpillars, is a key component in plant recognition of damage from insect herbivory. Chemical analysis of the oral secretion from beet armyworms that have fed on 13C- labeled corn seedlings established that the fatty acid portion of volicitin is plant derived whereas the 17-hydroxylation reaction and the conjugation with glutamine are carried out by the caterpillar by using glutamine of insect origin. Ironically, these insect-catalyzed chemical modifications to linolenic acid are critical for the biological activity that triggers the release of plant volatiles, which in turn attract natural enemies of the caterpillar.

UR - http://www.scopus.com/inward/record.url?scp=0032506153&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032506153&partnerID=8YFLogxK

U2 - 10.1073/pnas.95.23.13971

DO - 10.1073/pnas.95.23.13971

M3 - Article

C2 - 9811910

AN - SCOPUS:0032506153

VL - 95

SP - 13971

EP - 13975

JO - Proceedings of the National Academy of Sciences of the United States of America

JF - Proceedings of the National Academy of Sciences of the United States of America

SN - 0027-8424

IS - 23

ER -