Isovitexin-2'-O-beta-[6-O-E-p-coumaroylglucopyranoside] from UV-B irradiated leaves of rice, Oryzasativa L. inhibits fertility of Helicoverpa armigera

Merdelyn Caasi-Lit, Gregory Tanner, Murali Nayudu, Malcolm Whitecross

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    UV-B irradiated rice leaves (Oryza sativa L.) contained four closely related flavonoids, with either an isoorientin or isovitexin aglycone. These flavonoids have previously been purified and characterized, and were added to artificial diets of the African bollworm (Helicoverpa armigera Hübner) at 0.1× concentration found in irradiated rice leaves. Consumption of different diets had relatively small effects on laval, pupal and adult duration, weight and survival, indicating the insects lived near normal life cycles on all diets. However, one of the compounds, flavonoid IIa, isovitexin-2″-O-β-[6-O-E-p-coumaroylglucopyranoside], dramatically reduced the number of fertile eggs laid to 7% of control insects (P < 0.001) when added to insect diets at 18 nmol gFW−1 (14 ppm). A similar antifertility effect was observed when only the male partner consumed diet containing flavonoid IIa, indicating that the reduced fertility may be male specific. In contrast, the fecundity and fertility of insects eating diets containing the closely related flavonoids, isoorientin-2″-O-β-[6-O-E-p-coumaroylglucopyranoside] or isoorientin-2″-O-β-[6-O-E-p-feruloylglucopyranoside], were not significantly different to control diets
    Original languageEnglish
    Pages (from-to)1167-1173
    Number of pages7
    JournalPhotochemistry and Photobiology
    Volume83
    Issue number5
    DOIs
    Publication statusPublished - 2007

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    fertility
    diets
    rice
    homoorientin
    Nutrition
    leaves
    Fertility
    Flavonoids
    Diet
    insects
    Insects
    bollworms
    Insect control
    eating
    Insect Control
    eggs
    Oryza
    isovitexin
    Life Cycle Stages
    Eggs

    Cite this

    Caasi-Lit, Merdelyn ; Tanner, Gregory ; Nayudu, Murali ; Whitecross, Malcolm. / Isovitexin-2'-O-beta-[6-O-E-p-coumaroylglucopyranoside] from UV-B irradiated leaves of rice, Oryzasativa L. inhibits fertility of Helicoverpa armigera. In: Photochemistry and Photobiology. 2007 ; Vol. 83, No. 5. pp. 1167-1173.
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    title = "Isovitexin-2'-O-beta-[6-O-E-p-coumaroylglucopyranoside] from UV-B irradiated leaves of rice, Oryzasativa L. inhibits fertility of Helicoverpa armigera",
    abstract = "UV-B irradiated rice leaves (Oryza sativa L.) contained four closely related flavonoids, with either an isoorientin or isovitexin aglycone. These flavonoids have previously been purified and characterized, and were added to artificial diets of the African bollworm (Helicoverpa armigera H{\"u}bner) at 0.1× concentration found in irradiated rice leaves. Consumption of different diets had relatively small effects on laval, pupal and adult duration, weight and survival, indicating the insects lived near normal life cycles on all diets. However, one of the compounds, flavonoid IIa, isovitexin-2″-O-β-[6-O-E-p-coumaroylglucopyranoside], dramatically reduced the number of fertile eggs laid to 7{\%} of control insects (P < 0.001) when added to insect diets at 18 nmol gFW−1 (14 ppm). A similar antifertility effect was observed when only the male partner consumed diet containing flavonoid IIa, indicating that the reduced fertility may be male specific. In contrast, the fecundity and fertility of insects eating diets containing the closely related flavonoids, isoorientin-2″-O-β-[6-O-E-p-coumaroylglucopyranoside] or isoorientin-2″-O-β-[6-O-E-p-feruloylglucopyranoside], were not significantly different to control diets",
    author = "Merdelyn Caasi-Lit and Gregory Tanner and Murali Nayudu and Malcolm Whitecross",
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    doi = "10.1111/j.1751-1097.2007.00125.x",
    language = "English",
    volume = "83",
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    Isovitexin-2'-O-beta-[6-O-E-p-coumaroylglucopyranoside] from UV-B irradiated leaves of rice, Oryzasativa L. inhibits fertility of Helicoverpa armigera. / Caasi-Lit, Merdelyn; Tanner, Gregory; Nayudu, Murali; Whitecross, Malcolm.

    In: Photochemistry and Photobiology, Vol. 83, No. 5, 2007, p. 1167-1173.

    Research output: Contribution to journalArticle

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    T1 - Isovitexin-2'-O-beta-[6-O-E-p-coumaroylglucopyranoside] from UV-B irradiated leaves of rice, Oryzasativa L. inhibits fertility of Helicoverpa armigera

    AU - Caasi-Lit, Merdelyn

    AU - Tanner, Gregory

    AU - Nayudu, Murali

    AU - Whitecross, Malcolm

    PY - 2007

    Y1 - 2007

    N2 - UV-B irradiated rice leaves (Oryza sativa L.) contained four closely related flavonoids, with either an isoorientin or isovitexin aglycone. These flavonoids have previously been purified and characterized, and were added to artificial diets of the African bollworm (Helicoverpa armigera Hübner) at 0.1× concentration found in irradiated rice leaves. Consumption of different diets had relatively small effects on laval, pupal and adult duration, weight and survival, indicating the insects lived near normal life cycles on all diets. However, one of the compounds, flavonoid IIa, isovitexin-2″-O-β-[6-O-E-p-coumaroylglucopyranoside], dramatically reduced the number of fertile eggs laid to 7% of control insects (P < 0.001) when added to insect diets at 18 nmol gFW−1 (14 ppm). A similar antifertility effect was observed when only the male partner consumed diet containing flavonoid IIa, indicating that the reduced fertility may be male specific. In contrast, the fecundity and fertility of insects eating diets containing the closely related flavonoids, isoorientin-2″-O-β-[6-O-E-p-coumaroylglucopyranoside] or isoorientin-2″-O-β-[6-O-E-p-feruloylglucopyranoside], were not significantly different to control diets

    AB - UV-B irradiated rice leaves (Oryza sativa L.) contained four closely related flavonoids, with either an isoorientin or isovitexin aglycone. These flavonoids have previously been purified and characterized, and were added to artificial diets of the African bollworm (Helicoverpa armigera Hübner) at 0.1× concentration found in irradiated rice leaves. Consumption of different diets had relatively small effects on laval, pupal and adult duration, weight and survival, indicating the insects lived near normal life cycles on all diets. However, one of the compounds, flavonoid IIa, isovitexin-2″-O-β-[6-O-E-p-coumaroylglucopyranoside], dramatically reduced the number of fertile eggs laid to 7% of control insects (P < 0.001) when added to insect diets at 18 nmol gFW−1 (14 ppm). A similar antifertility effect was observed when only the male partner consumed diet containing flavonoid IIa, indicating that the reduced fertility may be male specific. In contrast, the fecundity and fertility of insects eating diets containing the closely related flavonoids, isoorientin-2″-O-β-[6-O-E-p-coumaroylglucopyranoside] or isoorientin-2″-O-β-[6-O-E-p-feruloylglucopyranoside], were not significantly different to control diets

    U2 - 10.1111/j.1751-1097.2007.00125.x

    DO - 10.1111/j.1751-1097.2007.00125.x

    M3 - Article

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    JO - Photochemistry and Photobiology

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    ER -