期刊
JOURNAL OF CHEMICAL ECOLOGY
卷 36, 期 4, 页码 396-404出版社
SPRINGER
DOI: 10.1007/s10886-010-9769-3
关键词
Allelopathy; Verbenaceae; Tectona grandis; Terpene; Clerodane
资金
- Ministerio de Ciencia y Tecnologia, Spain (Ministerio de Ciencia e Innovacion) [AGL2008-04716/AGR]
A study was carried out on the allelopathic potential of four forest species, Tectona grandis, Aleurites fordii, Gliricidia sepium, and Maytenus buxifolia. The most active species, T. grandis, was selected to perform a phytochemical study. A new compound, abeograndinoic acid, was isolated, and elucidation of its structure showed that this compound has an unusual carbon skeleton. A further 21 known terpenoids-including 4 sesquiterpenoids, 8 diterpenes and 9 triterpenes-also were isolated. A biosynthetic scheme for the presence of the new compound is proposed. Bioactivity profiles that used etiolated wheat coleoptiles and phytotoxicity bioassays on the isolated compounds were conducted. The compounds that presented the highest phytotoxic activity are the diterpenes 9 (2-oxokovalenic acid) and 12 (19-hydroxyferruginol).
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