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- W1990200317 abstract "Leaves and roots of 19 species and six subspecies of Hawaiian Bidens were examined for polyacetylenes. Eleven C13 hydrocarbons, aromatic and thiophenyl derivatives, one C14 tetrahydropyran and three C17 hydrocarbons were isolated all identified. All can be derived from a common precursor, oleic acid. Polyacetylenes were not detected in the leaves of 13 taxa although they are found in the roots of all. The occurrence of 2-[2-phenyl-ethyne-1-yl]-5 acetoxymethyl thiopene in Bidens has not been previously reported. Its ubiquitous presence is consistent with other evidence that the Hawaiian species are all derived from a single ancestral immigrant to the islands. Most taxa could be distinguished by their complement of polyacetylenes in roots and leaves. No variation was found to occur within taxa except in B. torta, in which each population had a unique array of polyacetylenes. Above the species level there appeared to be no taxonomically significant pattern to the distribution of polyacetylenes in this group." @default.
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- W1990200317 date "1984-05-01" @default.
- W1990200317 modified "2023-10-14" @default.
- W1990200317 title "Polyacetylenes in Hawaiian bidens" @default.
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- W1990200317 doi "https://doi.org/10.1016/0305-1978(84)90030-9" @default.
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