کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4514572 1322214 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identification of an insecticidal polyacetylene derivative from Chrysanthemum macrotum leaves
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Identification of an insecticidal polyacetylene derivative from Chrysanthemum macrotum leaves
چکیده انگلیسی

Compounds responsible for insecticidal properties of Chrysanthemum macrotum (D.R.) Ball. leaves against Spodoptera littoralis Boiduval caterpillars have been investigated. The screening of the insecticidal activity was performed by incorporating methanol, buthanol or ethyl acetate extracts, or some chromatographic fractions to the caterpillars’ artificial diet. It was noted that extracts and fractions ameliorated or disturbed nutritional indexes, being not always toxic for caterpillars. Among the tested fractions, one pure compound with a high insecticidal activity (percentage of mortality 66.7%) was purified. The nuclear magnetic resonance study allowed its identification as a polyacetylene derivative, in particular a spiroketal enol ether one.


► We study toxicity of Chrysanthemum macrotum against Spodoptera littoralis.
► Extracts decrease growth rate and disturb insect consumption.
► Fractions increase significantly insect mortality.
► We identify the structure of an insecticidal polyacetylene derivative.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Industrial Crops and Products - Volume 34, Issue 1, July 2011, Pages 1128–1134
نویسندگان
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