bioactive compounds from neem tissue cultures and screening against insectsthe following are extended summaries based on material from poster presentations at the 9th international congress of pesticide chemistry, organised by the international union of pure and applied chemistry (iupac) and held in london, uk, 2–7 august 1998. they are entirely the responsibility of the authors and do not necessarily reflect the views of the editorial board of pesticide science.

Autor: Zounos, Athanassios K, Allan, Eunice J, Mordue(Luntz), A Jennifer
Zdroj: Pesticide Science (now called Pest Management Science); April 1999, Vol. 55 Issue: 4 p497-500, 4p
Abstrakt: Hairy root cultures have been derived from neem (Azadirachta indica A Juss, Family Meliacceae) using Agrobacterium rhizogenes and have been studied for the production of compounds with antifeedant effects on insects. Six-week-old hairy root cultures were extracted, and HPLC yielded fractions ranging from polar to non-polar compounds. High antifeedancy levels against the desert locust were observed in fractions(F) 2, 3 and 4 whilst F1 and F5 were not significantly antifeedant. Interestingly F3 did not contain any of the well-known neem chemicals while F2 contained azadirachtin and 3-tigloylazadirachtol and F4 nimbin and salannin. © 1999 Society of Chemical Industry
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