Detrimental effects of water extracts from surface and interior of Taxus baccata leaves on the two-spotted spider mite (Tetranychus urticae Koch).
Surface deposits on Taxus baccata needles removed by dipping in water of 96, 60 or 40 degrees C for 5 s caused changes in life history components of mites. Paclitaxel was among other peaks present in the removed fractions in concentrations between 0.017 and 0.170 microg/g of fresh weight (f.w.) increasing with temperature. Long extraction for 60 min at only 40 degrees C did not increase removable paclitaxel, but at 60 degrees C extraction rate was the highest (1.326 microg/g) suggesting that leakage from an interior of needles occurred. Mortality, developmental time, total fecundity, oviposition period and life history parameters of Tetranychus urticae Koch. were detrimentally affected.
Furmanowa
M
M
Department of Biology and Pharmaceutical Botany, Medical University, Warsaw, Poland. mfurman@farm.amwaw.edu.pl
Kropczyńska
D
D
Zobel
A
A
Głowniak
K
K
Sykłowska-Baranek
K
K
Rapczewska
L
L
D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000494:pharmacology; D007306:Insecticides / Q000737:chemistry* / Q000633:toxicity; D008925:Mites / Q000502:physiology*; D017239:Paclitaxel / Q000737:chemistry / Q000494:pharmacology; D010936:Plant Extracts / Q000737:chemistry / Q000633:toxicity; D018515:Plant Leaves / Q000737:chemistry; D020946:Taxus / Q000737:chemistry* / Q000633:toxicity; D014867:Water
D000972:Antineoplastic Agents, Phytogenic; D007306:Insecticides; D010936:Plant Extracts; D014867:Water; D017239:Paclitaxel