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Showing papers by "Tom J. Mabry published in 1978"


Journal ArticleDOI
TL;DR: In this article, 13 C NMR spectra for a variety of flavonoid glycosidcs are presented and analyzed, and evidence is presented which demonstrates that 13 C nMR spectroscopy is a valuable technique for distinguishing the sites of methylation, glycosylation and acylation in glycoiides.

858 citations


Journal ArticleDOI
TL;DR: In this paper, 15 flavonols, five aglycones and ten glucosides were isolated from the four species of Tetragonotheca, T. texana and T. ludoviciana.

34 citations


Journal ArticleDOI
TL;DR: Four flavonoid geographical races based on twenty flavonol 3-O-glycosides were found to exist in Chenopodium fremontii with those populations from the northern part of the range producing 7-methyl ethers and 3- O-galactosides and glucosides.

31 citations


Journal ArticleDOI
TL;DR: Five species in the Prosopis juliflora complex, as well as two varieties and putative hybrid, were found to have similar flavonoid patterns, and 12 major compounds were identified.

30 citations


Journal ArticleDOI
TL;DR: The investigation of several Brickellia species and two further related species afford besides known compounds four new labdane derivatives, a new acetylenic carbinol and a new dihydrobenzofuran derivative as discussed by the authors.

21 citations


Journal ArticleDOI
TL;DR: The structure for trichoclin, (E )-8-(3-methyl-4-hydroxy-2-butenyloxy)-psoralen, a new furocoumarin isolated from Trichocline incana, has been established as discussed by the authors.

20 citations


Journal ArticleDOI
TL;DR: In this paper, the exudate farina of the ceroptin chemotype of Pityrogramma triangularis was detected as a minor component in the extract of the extract.

19 citations


Journal ArticleDOI
TL;DR: In this article, four C -glycosylflavones isolated from Mollugo distica were identified as 8-C -β-d -glucopyranosyl-genkwanin, 8- C -α- l -arabinopyrano-nylgenknin and their 2″-rhamnosides.

18 citations


Journal ArticleDOI
TL;DR: Data indicate that Hexorella belongs to the Chenopodiineae, the betalain suborder of theCentrospermae, and excludes alignment with the anthocyanin family the Caryophyllaceae.
Abstract: Roots ofHectorella caespitosaHook. f. were induced to produce a red pigment which was shown to be a betalain and not an anthocyanin. These data indicate thatHectorella belongs to theChenopodiineae, the betalain suborder of theCentrospermae, and excludes alignment with the anthocyanin family theCaryophyllaceae.

14 citations


Journal ArticleDOI
TL;DR: In this article, nine kaempferol glycosides, including the hitherto unkown 3-β-d -(6- O -acetylglucoside)-7-α- l -rhamnoside, have been isolated from Equisetum telmateja of European origin.

13 citations



Journal ArticleDOI
TL;DR: The flavonoid patterns in Hazardia species support species delimitations and relationships based on morphology and geography, and the compounds thus far elucidated are glycosides of quercetin, kaempferol, isorhamnetin, luteolin, and apigenin, glycoflavones of apigen in, and methoxylated flavonol aglycones.