Methyl jasmonate application induces increased densities of glandular trichomes on tomato, Lycopersicon esculentum

Anthony J. Boughton, Kelli Hoover, Gary Felton

Research output: Contribution to journalArticle

102 Citations (Scopus)

Abstract

This study was designed to address whether applications of methyl jasmonate (MJ) or Benzothiadiazole (BTH) to cultivated tomato, Lycopersicon esculentum, induced elevated densities of defense-related glandular trichomes on new leaves. Four-leaf tomato plants were sprayed with MJ, BTH, or control solutions, and the density of type VI glandular trichomes on new leaves was subsequently determined at 3, 7, 14, 21, and 28 d. At 7, 14, and 21 d, the density of type VI glandular trichomes on new leaves was significantly higher on MJ-treated plants than on BTH- or control-treated plants. At 7 and 14 d after treatment, the mean density of glandular trichomes on new leaves of MJ-treated plants was ninefold higher than on leaves of control-treated plants. We observed entrapment of immature western flower thrips in trichomes on MJ-treated plants at higher rates than on BTH or control plants. Studies to evaluate potential trade-offs between reductions in pest populations by increased trichome density and possible negative impacts of trichome induction on biological control agents are needed.

Original languageEnglish (US)
Pages (from-to)2211-2216
Number of pages6
JournalJournal of Chemical Ecology
Volume31
Issue number9
DOIs
StatePublished - Sep 1 2005

Fingerprint

Trichomes
trichome
methyl jasmonate
Lycopersicon esculentum
Solanum lycopersicum var. lycopersicum
trichomes
tomatoes
leaves
Biological Control Agents
Thysanoptera
thrips
Frankliniella occidentalis
Plant Leaves
biological control
biological control agents
flower
benzo-1,2,3-thiadiazole
immatures
pests

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Ecology

Cite this

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abstract = "This study was designed to address whether applications of methyl jasmonate (MJ) or Benzothiadiazole (BTH) to cultivated tomato, Lycopersicon esculentum, induced elevated densities of defense-related glandular trichomes on new leaves. Four-leaf tomato plants were sprayed with MJ, BTH, or control solutions, and the density of type VI glandular trichomes on new leaves was subsequently determined at 3, 7, 14, 21, and 28 d. At 7, 14, and 21 d, the density of type VI glandular trichomes on new leaves was significantly higher on MJ-treated plants than on BTH- or control-treated plants. At 7 and 14 d after treatment, the mean density of glandular trichomes on new leaves of MJ-treated plants was ninefold higher than on leaves of control-treated plants. We observed entrapment of immature western flower thrips in trichomes on MJ-treated plants at higher rates than on BTH or control plants. Studies to evaluate potential trade-offs between reductions in pest populations by increased trichome density and possible negative impacts of trichome induction on biological control agents are needed.",
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Methyl jasmonate application induces increased densities of glandular trichomes on tomato, Lycopersicon esculentum. / Boughton, Anthony J.; Hoover, Kelli; Felton, Gary.

In: Journal of Chemical Ecology, Vol. 31, No. 9, 01.09.2005, p. 2211-2216.

Research output: Contribution to journalArticle

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