Dioscorea


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Dioscorea

(dī″ō-skŏr′ē-ă) [NL]
A genus of yams, a potato-like root vegetable used in many cultures as a source of dietary carbohydrates. There are approx. 150 species. Dioscorea villosa, the wild yam, is used as a source of topically applied cosmetics and plant-derived steroids.
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References in periodicals archive ?
Leaf PtNPs PdNPs 15 Dioscorea bulbifera Tuber PtNPs PdNPs 16 Barleria prionitis Leaf PtNPs PdNPs Serial Shape Size (nm) Reference number Spherical 2.4 [+ or -] 0.8 [38] 1 Irregular and rod shaped -- [39] 2 Spheres and plates 2-20 [36] 3 Irregular 23 [42] 4 Hexagonal and pentagonal 30 [43] 5 Spherical 15-20 [44] 6 Spherical, rod, and 3-5 [45] 7 three-dimensional polyhedra Spherical 15 [29] 8 Spherical 16-23 [46] 9 Irregular 6 [30] 10 Spherical 100 [41] 11 Spherical 20-25 [46, 47] 12 Spherical 2-4 [48] 13 Spherical 2.1 [+ or -] 0.4 [40] 14 Spherical 3.8 [+ or -] 0.2 Spherical 2-5 10-25 [8] 15 Spherical and blunt ended cubes Spherical 1-2 [14] 16 Spherical and irregular 5-7
For each sample of Manihot esculenta starch, Musa paradisiaca, and Dioscorea trfida, the procedure was repeated in triplicate [19].
Dioscorea, with ten species, placed Dioscoreaceae as the richest family of the two vegetation types.
Productivity of yams (Dioscorea spp.) as affected by soil fertility.
[109] determined diosgenin contents by GC-MS in a tuber collection of Dioscorea spp.
However, some analytes (e.g., Dioscorea saponin aglycones), for structural and polar reasons, cannot produce enough strong ions with ESI; in these cases, APCI can be used to increase the ion yield.
Scientific name Common name Pre-1940 Alliaria petiolata garlic mustard Artemesia vulgaris mugwort Carduus nutans (D) musk thistle Centaurea stoebe spotted knapweed Cirsium arvense Canada thistle x Cirsium vulgare bull thistle x Clematis terniflora sweet autumn clematis Conium maculatum (D) poison hemlock Convolvulus arvense field bindweed x Coronilla varia (P) crown vetch x Cynanchum louiseae black swallow-wort x Daucus carota Queen Anne's lace x Dioscorea polystachya (D) Chinese yam Dipsacus fullonum common teasel x Dipsacus laciniatus cut-leaved teasel x Euphorbia esula leafy spurge x Glechoma hederacea creeping Charlie x Hesperis matronalis dame's rocket x Humulus japonicus (D) Japanese hops Hypericum perforatum St.