The leaves are trifoliate, and you may see them closely by clicking on the 4th photo. Different ethnic groups have been using several species of dioscorea in their area of certain ailments. Mar 15, 2000 read diosbulbin b, a constituent of dioscorea pentaphylla, acta crystallographica section c. It is a highly invasive plant included in the global compendium of weeds randall, 2012, and which creates management problems in many parts. Overharvesting of rare yams has threatened populations of several dioscorea species worldwide 18,22,23,24. For more multimedia, look at dioscorea pentaphylla on wikimedia commons. This effect suggests dioscorea villosa is a potentially useful supplement for skin. Diosbulbin b, a constituent of dioscorea pentaphylla, acta.
Show all show tabs fiveleaf yam general information. Antifungal, antibacterial, dioscoreapentaphylla, minimum inhibitory concentration. It can survive in a number of different habitats and environmental conditions, but is most commonly found at the edges of rich, mesic bottomland forests, along stream banks and drainageways and near fencerows. These are dioscorea alata, dioscorea bulbifera, dioscorea pentaphylla, dioscorea puber. It is grown as tuber crop for economic values by rural and tribal farmers. Dioscorea pentaphylla is a species of flowering plant in the yam family known by the common. I have been believing the posted plant to be dioscorea pentaphylla. Dioscorea batatas is a perennial growing to 3 m 9ft by 1. The record derives from wcsp data supplied on 20120323 which reports it as an accepted name record 240656 with original publication details. This yam has cylindrical roots as thick as an arm and of excellent quality. Dioscorea species, popularly known as yam worldwide and as ban aalu in odisha, india, is a prime staple medicinalfood substitute for the majority of rural and local people of the state of india.
Leaf paste mixed with mustard oil is rubbed on the effected part to treat rheumatism 24. Chromatographic, antibacterial and ftir analysis of dioscorea pentaphylla l. The institute of food and agricultural sciences ifas is an equal opportunity institution authorized to provide research, educational information and other services only to individuals and institutions that function with nondiscrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. General information buck yam is a perennial climbing plant producing annual stems from a perennial rootstock. In india, this yam is common in jungles and is found in the south sea islands. Small tubers can be cut into 2 4 sections, larger ones into 6 8 sections. Pdf amino acid composition of wild yam dioscorea spp. Reported from natural areas in 23 florida counties, from duval.
An dioscorea in nahilalakip ha familia nga dioscoreaceae. A native to tropical asia, air potato, dioscorea bulbifera, was first introduced to the americas from africa. In vitro propagation of two wild yams, dioscorea oppositifolia and dioscorea pentaphylla, is reported. This is not intended to be a comprehensive listing. Dioscorea pentaphylla is an extremely widespread and variable species, such that prain and burkill recognized a total of 16 varieties in their revision of asian species of dioscorea. An dioscorea pentaphylla in nahilalakip ha genus nga dioscorea, ngan familia nga dioscoreaceae. Pdf in vitro propagation of two wild yams, dioscorea oppositifolia and dioscorea pentaphylla, is reported. Files are available under licenses specified on their description page. Pdf chromatographic, antibacterial and ftir analysis of. The alternately arranged leaves are compound, divided into 3 to 5 leaflets each up to 10 centimeters long.
Both of these species originated in southeast asia and very early were carried by voyagers into the western pacific and brought d. However, this species can also be considered invasive and problematic. Dioscorea yam species comprise a genus of 6 tuberous climbing plants 1. Dioscorea oppositifolia is a fast growing twining vine that has escaped from cultivation. Winged yam gets it name from its winged internodes, a characteristic feature of the species. Thus, although dioscorea was introduced by the thomsonian school in medicine, it became a favorite in the eclectic school, where for decades it has found a cordial reception.
This species of dioscorea does not produce nearly as many bulbils as d. Dioscorea species have capacity to reduce food problems in 3rd world authorstream presentation. The vast majority of the species are tropical, with only a few species extending into temperate climates. Winged yam is known to have disprupted naturalarea plant communities, particularly coastal hammocks in south florida. Cells are blank where information is not available in the rapid assessment vegetation model.
Dioscorea pentaphylla diupeoverview eppo global database. Chemical composition diosgenin an aglycone is a chemical substance found in dioscorea and are used commercially in pharmaceutical industry. These are primarily included because names of species rank are. Several species are widely cultivated in many cultivars including dioscorea alata d. We do not intend the plant list to be complete for names of infraspecific rank. Dietary pes plant estrogens of dioscorea can provide wide range of health benefits including protection. It is a highly invasive plant included in the global compendium of weeds randall, 2012, and. Dioscorea villosa is one of the species of yam referred to as wild yam dioscorea villosa has been claimed to alleviate symptoms of menopause, but there is currently no evidence to support this effect animal evidence suggests dioscorea villosa can increase skin thickness after lowdose supplementation. Department of agriculture agricultural research service. Of the dioscorea species available in sbr, 10 species. Covered with large leaves, it can quickly grow into the tops of tall trees. Enjoy unrestricted access to all content and features, including. Pdf investigation of antimicrobial properties of doscorea. Please note that this is a trial program and may end.
It is named after the ancient greek physician and botanist dioscorides. Around 15 species of dioscorea are used as a source of diosgenin 20. Bioefficacy of dioscorea pentaphylla from midmidwestern ghats. Presentations ppt, key, pdf logging in or signing up. Pdf antinociceptive activity of methanol extract of. Dioscorea bulbifera bulbils are used in the treatment of piles, dysentery, syphilis, ulcers, cough, leprosy, diabetes, asthma, and cancer. The plant list includes 1,192 scientific plant names of species rank for the genus dioscorea. Produces large numbers of aerial tubers, which accelerate its spread. Dioscorea villosa supplement health benefits, dosage. The roots, cut into slices and boiled, have a very pleasant taste. A number of wild crops remain unexplored in this world and among them some have excellent medicinal and nutritional properties. Multiple shoots were initiated from nodal explants on murashige and skoog ms medium. Dioscorea alata or winged yam can easily be mistaken for air potato, d.
In india, the male flowers are sold in the bazaars and eaten as greens. This page was last edited on 14 december 2019, at 15. Tubers of nepal, plant foods for human nutrition 60. List of plants of mallur hills with vernacular name, habit. Dioscorea alata ufifas center for aquatic and invasive plants.
The pdf file linked from each plant community name describes the model and synthesizes the. Dioscorea is a genus of over 600 species of flowering plants in the family dioscoreaceae, native throughout the tropical and warm temperate regions of the world. Most of the species of dioscorea have a wide adaptability to diverse agro climatic condition. The socalled dioscorein is not a definite principle of the rhizoma, but is simply a dried solid extract, and to call it other. Dioscorea pentaphylla in the germplasm resources information network grin, u. The goal of the traditional pacific island crops web site is to provide organized access to quality, free web resources that provide information on these twelve important traditional pacific island crops. The plant diversity is distributed from the western ghats to eastern ghats, along with the northeastern region and from the greater himalayas to the plain of ganga. Synonyms based on material from outside china are not listed here.
Dioscorea is a genus of great economic value, including important food plants. Dioscorea villosa is claimed to alleviate symptoms of menopause because the molecular structures of the yam are similar to many steroidlike compounds. Access is allocated within two business days of purchase and lasts one year. Lloyd investigated the dioscorea subject, and found that the variety of the vine yielding the drug originally em. The pdf file linked from each plant community name describes the model and synthesizes the knowledge available on vegetation composition, structure, and dynamics in that community. Pdf antioxidant activity, antibacterial potential and. Plants grow best in lowland tropical areas with a temperature around 26 34c. It has no odor, and but little taste beyond a slight acridity after prolonged chewing. Dioscorea bulbifera is used by tribal ladies of rajasthan as contra receptive choudhary et al. Dioscorea bulbifera ufifas center for aquatic and invasive plants. All structured data from the file and property namespaces is available under the creative commons cc0 license. In vitro propagation of wild yams, dioscorea oppositifolia. In vitro propagation of wild yams, dioscorea oppositifolia linn and. Pdf in vitro propagation of wild yams, dioscorea oppositifolia.
Winged yam dioscorea alata is another nonnative, invasive vine in florida. Wight has never seen it cultivated in india, although the natives dig the tubers to eat. Diosbulbin b, a constituent of dioscorea pentaphylla. Dioscorea pentaphylla is a prickly vine that twines counterclockwise around objects and other plants.
Tm 10420 emergency food plants and poisonous plants on the islands of the pacific obsolete 19430415. India is a harbor of biodiversity in general and phytodiversity in particular. Dioscorea bulbifera is boiled and used as vegetable in odisha misra and misra, 2014. Antioxidant activity, antibacterial potential and characterization of. Yam traditional pacific island crops research guides.
Species in this genus are dioecious, twining, and herbaceous to woody vines with single or clustered large tubers, some of which are edible and are known as. The pdf file linked from each plant community name describes the model and synthesizes the knowledge available on. Tuber, flowers and young shoot taken as vegetables 14 tubers are boiled and eaten 6. The species is dioecious individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required. Use of dioscorea species in traditional medicines is documented to at least 2000 bc 25, including leaf material 26 as. The two most important ones in the pacific are dioscorea alata greater yam, water yam and dioscorea esculenta lesser yam, potato yam. Germoplasm collection includes vegetables seed in cold storage and orthodox seeds like coffee cacao, peach palm and others. The palatability of dioscorea alata is high due to less bitterness. These stems scramble over the ground, or twine into the surrounding vegetation. A study was under taken to quantify the biochemical composition of protein, fat, starch, crude fiber, ash and dry matter in 22 different collections c1 to c22 of dioscorea alata fresh tubers.
The pdf file you selected should load here if your web browser has a pdf. Investigation of antimicrobial properties of doscorea pentaphylla from mid western ghats, india article pdf available october 2010 with 53 reads how we measure reads. Yam is the common name applied to plants of about 500 species of the genus dioscorea of the dioscoreaceae family. The plant contains the alkaloid, carbohydrate, tannin, gum protein, steroid, glycoside, flavonoids. Metabolite profiling of dioscorea yam species reveals. Dioscorea villosa has one of the firmest of rhizomae, it being very difficult to powder or crush. Nomenclature and classification taxon record name scientific name. Dioscorea alata ufifas center for aquatic and invasive. Jun 14, 2018 this effect suggests dioscorea villosa is a potentially useful supplement for skin care, but more research is needed before it can be specifically recommended as a cosmetic supplement.
Of these, seven to ten are cultivated on a large scale 2,3 and two d. Dioscorea calcicola is the sole member of dioscoreales that was also examined by johnson et al. Page 2 of 10 please provide details on the components of biodiversity for food and agriculture involved species, breeds, varieties. The plant list includes a further 316 scientific plant names of infraspecific rank for the genus dioscorea. Structural chemistry on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Other uses none known propagation seed not normally used to propagate this species. Among available dioscorea species, four species are major as per consumption rate fjg. The genus dioscorea includes about 350800 species distributed largely in the tropics, but also in warm and temperate regions. Dioscorea bulbifera ufifas center for aquatic and invasive. Plants profile for dioscorea pentaphylla fiveleaf yam. Species in this genus are dioecious, twining, and herbaceous to woody vines with single or clustered large tubers, some of which are edible and are known as yams acevedorodriguez, 2005. Jstor is part of ithaka, a notforprofit organization helping the academic community use digital technologies to preserve the scholarly record and to advance research and teaching in sustainable ways.
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