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Masaki Inoue Kazuhiro Ohtani Ryoji Kasai Mayu Okukubo Marta Andriantsiferana Kazuo Yamasaki Tohru Koike 《Phytochemistry》2009,70(9):1195-1202
Brine shrimp lethality assay-guided separation of the MeOH extract of leaves of Physena sessiliflora, which is endemic to Madagascar, afforded eight triterpene glycosides, Physenoside S1–4 and 16-β-[(d-xylopyranosyl)oxy]oxohexadecanyl homologues, Physenoside S5–8. Structural elucidation of these compounds was based on both spectroscopic analyses and chemical properties. Physenoside S7 and S8 have significant cytotoxic activities in the brine shrimp lethality assay. 相似文献
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Mary Ndungu Wilber Lwande Ahmed Hassanali Lambert Moreka Sumesh Chander Chhabra 《Entomologia Experimentalis et Applicata》1995,76(3):217-222
The repellency of the essential oil of the shrubCleome monophylla (Family: Capparidaceae) and identified constituents of the oil were evaluated against the livestock tick,Rhipicephalus appendiculatus and the maize weevil,Sitophillus zeamais. In a tick climbing repellency bioassay, the oil ofC. monophylla exhibited repellency which, at the highest dose, was comparable to that of the commercial arthropod repellent N,N-diethyl
toluamide (DEET). In a Y-tube olfactometer bioassay,C. monophylla oil showed higher or comparable repellency againstS. zeamais relative to DEET at all the doses tested. 14 Compounds were identified in theC. monophylla oil by GC, GC-MS and coinjection with authentic samples. Terpenolene was found to occur in largest quantity (14%) followed
by 1-α-terpeneol (10%), pentacosane (9%), (α+β)-humulene (8%), phytol (5%) and 2-dodecanone (4%). The most repellent components
againstR. appendiculatus andS. zeamais were 1-α-terpeneol and 2-dodecanone. The overall pattern of repellency activity of theC. monophylla constituents with respect to the two arthropods was, however, different. The potential ofC. monophylla in tick and maize weevil control is discussed. 相似文献
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Epiafzelechin 5-glucoside was characterized from the bark of Crataeva religiosa together with other known compounds. 相似文献
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Capparis ovata var. palaestina Zoh., C. spinosa var. aegyptia Boiss. and C. spinosa var. deserti Zoh., were investigated for glucosinolates. Glucoiberin, glucocapparin, sinigrin, glucocleomin, glucocapangulin, glucobrassicin and neoglucobrassicin, in addition to two others, were isolated. Four of these viz. glucoiberin, sinigrin, glucobrassicin and neoglucobrassicin were detected for the first time in Capparis species. Comparative chromatographic analyses of the glucosinolates of the plants examined revealed qualitative differences. 相似文献
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Alkaloids were isolated from leaves of 33 of 36 species and l-stachydrine and l-3-hydroxystachydrine were the major components present. These alkaloids characterize the family Capparidaceae in the same way as do the glucosinolates. 相似文献
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