Dioscorea


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

Dioscorea

 

a genus of plants, usually lianas, of the family Dioscoreaceae. They are dioecious perennial herbs, less often subshrubs, with tubers or rhizomes. The leaves are usually alternate and simple. The flowers are small, diclinous, and gathered into racemes or spikes. The fruit is a pod. There are more than 600 species in the tropics and sub-tropics, rarely in the temperate zones. In the USSR there are two species—D. caucasica in western Transcaucasia and D. polystachya in the southern parts of the Far East. Their rhizomes contain saponins; the preparation diosponin has been suggested for treating atherosclerosis The species D. batatas, D. alata, and D. saliva, among others, are cultivated for their edible tubers and are better known by the name yams.

References in periodicals archive ?
Al tener en cuenta los anteriores argumentos, la presente investigacion tiene como objetivo el aislamiento de bacterias asociadas a la rizosfera de Dioscorea rotundata, caracterizacion molecular mediante secuenciacion del gen rpoB, caracterizacion de capacidades de promocion de crecimiento vegetal por produccion de AIA y solubilizacion de fosforo y evaluacion del efecto a nivel de invernadero de su inoculacion sobre el crecimiento de plantulas in vitro Dioscorea rotundata.
Dewle et al., "Novel platinum-palladium bimetallic nanoparticles synthesized by Dioscorea bulbifera: anticancer and antioxidant activities," International Journal of Nanomedicine, vol.
Maceration: The samples were divided into slices, and water was added to then decrease size to the maximum in a blender for two minutes for the case of Musa paradisiaca and Dioscorea trfida; for Manihot esculenta this had a grating process.
Only one species, Dioscorea sinuata, was found fertile in all four SDF plots, while Serjania caracasana was the only species occurring as a fertile specimen in three cerradao plots.
The most diverse species was Musa x paradisiaca with 14 varieties, followed by Mangifera indica with nine, Manihot esculenta with eight, Psidium guajava with seven, and Citrus limon (L.) Osbeck, Dioscorea alata L.
Effect of the application of the leaf mulch of Gliricidia sepium on early development, leaf nutrient content and tuber yields of water yam (Dioscorea alata).
El name (Dioscorea rotundata Poir) es un tuberculo utilizado como alimento basico en muchas regiones tropicales, principalmente en el occidente de Africa, Asia, el Pacifico y el Caribe (Martinez y Ortiz, 2009).
In addition, the previously referred to conventional techniques were optimized using multienzymatic catalysis in combination with acid hydrolysis, allowing obtaining high purity diosgenin (>96%) from Dioscorea zingiberensis C.
In the previous study, authors of the present report established a mixed microscopic method for differentiating DN from several Dioscorea species in order to ensure the authentic origin of DN during herb collection [4] and later demonstrated that major constituents of DN include Dioscorea saponins but contained no free diosgenin [5,6] and that DN mediates a cardioprotective effect [7].
He, "Preparation of insoluble dietary fiber from Dioscorea batatas Decne Residu by enzymatic method," Anhui Medical & Pharmaceutical Journal, vol.
As informants reported, the roots of Dioscorea cayenensis Lam.