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  • 1
    ISSN: 1573-1561
    Keywords: Manduca sexta (L.) ; Lepidoptera ; Sphingidae ; Lycopersicon hirsutum f.glabratum ; day length ; light intensity ; 2-tridecanone ; glandular trichome ; resistance ; allelochemic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract First instarManduca sexta (L.) larvae confined on foliage fromLycopersicon hirsutum f.glabratum (accession PI 134417) plants grown under a long-day regime exhibited greater mortality than larvae on foliage from plants grown under a short-day regime. 2-Tridecanone, a toxin important in the insect resistance of PI 134417, was significantly more abundant in the foliage of plants grown under the long-than the short-day regimes. Light intensity influenced neither 2-tridecanone levels nor the expression of resistance. The density of glandular trichomes, which secrete 2-tridecanone, was influenced by an interaction between day length and light intensity.
    Type of Medium: Electronic Resource
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