Winged yam is known to have disprupted naturalarea plant communities, particularly coastal hammocks in south florida. The aplication of mutation induction by gamma irradiation on cultivars yam dioscorea alata l. Dioscorea alata is the most extensively cultivated of the edible yams. Dioscorea rotundata an overview sciencedirect topics. 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. The impact of cooking on the proximate composition and antinutritional factors of water yam dioscorea alata. Dioscorea alata grown in australasia and polynesia for its large root with fine edible white flesh water yam, white yam yam plant, yam any of a. It is a perennial climber, but it is grown as an annual. Dioscorea alata is a species of yam that is widely cultivated throughout the world, including china. We present these results in conjunction with evaluation completed with either the status assessment, itp, or the legal status of the species in florida. Hosted by the usgs core science analytics and synthesis.
Male flowers remained open for 45 hours and female flowers for 911 days. They have twining and sprawling stems with longpetioled smooth heartshaped leaves and dangling potato. It has swollen roots or tubers corms, which are formed from the vines, leaves, roots and stolons of the plant. Introduction for many people in the world the word yni or its translation, refers to dioscorea alata l. These are perennial herbaceous vines cultivated for the consumption of their starchy tubers in africa, asia. 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. In florida, herbarium records now reported for naturalized. These structures are elucidated by spectroscopic methods. Uses, benefits, cures, side effects, nutrients in dioscorea alata. Kumar s 1, mahanti p 2, rath sk 3 and patra jk 4 1 ambika prasad research foundation, cuttack, odisha, india.
This yam has the largest distribution worldwide of any cultivated yam, and it is grown throughout africa where its popularity is second only to white yam. Advances were also made in genetic transformation, including in vitro plant regeneration, gene delivery, and. Dioscorea alata, also known as purple yam, ube, or greater yam, among many other names, is a species of yam a tuber. Dioscorea alata winged yam this plant can be weedy or invasive according to the authoritative sources noted below. Yam is demanding in terms of soil fertility, and it is generally the first crop after long term fallows in traditional cropping sys. Lloyd investigated the dioscorea subject, and found that the variety of the vine yielding the drug originally em. Dioscorea alata ufifas center for aquatic and invasive plants. Dioscorea alata in the germplasm resources information network grin, u. Pronunciation of dioscorea alata with 1 audio pronunciation, 3 synonyms, 1 meaning, 2 translations and more for dioscorea alata.
It is a highly invasive plant included in the global compendium of weeds randall, 2012, and which creates management problems in many parts. Dioscorea alata, popularly known as white, water or winged yam, is a tuberous root vegetable which belongs to the genus of dioscorea. Dioscorea rotundata and dioscorea cayennensis both known as guinea yams are the most popular and economically important yams in west and central africa where they are indigenous, while dioscorea alata referred to as water yam or greater yam is the most widely distributed species globally. A superficial blackening of upper leaf surfaces of some cultivars is unusual and worthy of further study. Nevertheless, there is very limited knowledge on this type of yam diversity in china.
The aplication of mutation induction by gamma irradiation on. Martin, plant geneticist, mayaguez institute of tropical agri culture, agricultural research service, u. Several species are widely cultivated in many cultivars including dioscorea alata, d. Potential health benefits of water yam dioscorea alata. Our findings showed that the three plant extracts at various concentrations inhibited the mycelial growth of. Pdf download for rapid spread of the florido yam variety dioscorea. In florida, herbarium records now reported for naturalized populations in 7 counties. Dioscorea alata is mainly cultivated for its large white edible flesh roots which have. Vigorously twining herbaceous vine, from massive underground tuber. A number of wild crops remain unexplored in this world and among them some have excellent medicinal and nutritional properties. Dioscorea stock photos download 460 royalty free photos.
Dioscorea alata ufifas center for aquatic and invasive. Covered with large leaves, it can quickly grow into the tops of tall trees. Department of crop and soil science, faculty of agriculture, niger delta university, wilberforce island, bayelsa state, nigeria. The record derives from wcsp data supplied on 20120323 which reports it as an accepted name record 239747 with original publication details.
A practical guide to identifying yams university of hawaii. Stems to 10 m 30 ft or more in length, freely branching above. It is closely related to air potato dioscorea bulbifera. Dioscorea alata, known as purple yam, ube, or greater yam, among many other green dioscorea hispida dennst tree in the nature background. India is a harbor of biodiversity in general and phytodiversity in particular.
Dioscorea alata, commonly known as water yam or winged yam, is a fastgrowing, twining, tuberousrooted, herbaceous perennial vine of the yam family dioscoreaeae. A downloadable pdf document of a book in prepublication. Plastid phylogenetics of oceania yams dioscorea spp. Biosynthesis and functionalization of silver nanoparticles using nigellasativa, dioscorea alata and ferula asafoetida. Pdf ploidy analysis in water yam, dioscorea alata l. These are perennial herbaceous vines cultivated for the consumption of their starchy tubers in africa, asia, latin america, the caribbean and oceania. Purple sweet potato, purple yam, ubi, uhi, water yam, white yam, winged yam. Qualitative phytochemical analysis and antibacterial activity of dioscorea alata l a nutraceutical tuber crops of rural odisha. Control of dioscorea alata microtuber dormancy and. Usda, ars, germplasm resources information network. 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. The bulbils may also be eaten, but the large tubers are favored. Pdf potential health benefits of water yam dioscorea.
A practical guide to identifying yams the main species of dioscorea in the pacific islands crops. Names of dioscorea alata in various languages of the world are also given. Coursey 1967, varying in the color and consistency of the flesh. Kaledupa, tomia, dioscorea alata, dioscorea esculenta, carbohydrate. The vast majority of the species are tropical, with only a few species extending into temperate climates. It is named after the ancient greek physician and botanist dioscorides. Significant differences in crude protein and starch contents were observed among cultivars.
How dioscorea alata is effective for various diseases is listed in repertory format. Pdf the impact of cooking on the proximate composition. Dioscorea is a genus of great economic value, including important food plants. The tubers are usually a vivid violetpurple to bright lavender in color hence the common name, but some range in color from cream to plain white. The exact time when it was introduced to china still remains unknown. Greater yam, water yam, white yam, winged yam synonymy. Ambayeba muimbakankolongo, in food crop production by smallholder farmers in southern africa, 2018. Nutritional and antinutritional evaluation of wild yam. Also to check the antibacterial activity of tuber extracts against vibrio cholerae mtcc 3909, salmonella typhimurium mtcc. To ascertain the potential health benefits and alternate usage of the species, 20 varieties of dioscorea alata water yam were investigated for their total dietary fiber tdf, dry matter and. Of all the cultivated yams, this is one of the most extensively grown. The plants database includes the following 30 species of dioscorea. Dioscorins from different dioscorea species all exhibit both carbonic anhydrase and trypsin inhibitor activities.
In the present study, we assessed the genetic diversity of chinese greater yam by analyzing their morphology, genotype, chromosome and ploidy. Growth and distribution of roots of dioscorea alata l. Media in category dioscorea alata the following 55 files are in this category, out of 55 total. A comparative assessment of diversity of greater yam. A detailed account of symptoms produced by colletotrichum gloeosporioides on susceptible and resistant cultivars of yam dioscorea alata in solomon islands is given. This is important in the regions of the tropics, where it is grown for food.
Water yam or purple yam dioscorea alata is the main food crop of the genus dioscorea. Page designed through the cooperative efforts of interagency itis teams. The nutrient and antinutrient components of tubers from seven cultivars ofdioscorea alata were determined. The record derives from wcsp which reports it as an accepted name record 239747 with original publication details. Dioscorea rotundata african orphan crops consortium. Download a recognition card pdf from invasive and nonnative plants you. Rapid spread of the florido yam variety dioscorea alata in ivory. Natural pollination was practically absent but parthenocarpic fruit development was observed in rare cases. Dioscorea alata, also known as greater yam or the water yam, has the largest world distribution and is one of the oldest cultivated yam species worldwide lebot, 2009. A downloadable pdf document of a book in prepublication awaiting illustration. Click below on a thumbnail map or name for species profiles.
The aplication of mutation induction by gamma irradiation. This species was also evaluated using the predictive tool. The ability of plants extract to protect yam tuber was also study. Guinea yams have been in cultivation in west africa. This plant may be known by one or more common names in different places, and some are listed above. The niacin content in the tubers of dioscorea alata, d. Genetic linkage maps have been constructed for one wild species, d.
Dioscorea bulbifera ufifas center for aquatic and invasive. Yam is the third most important root and tuber crop in the tropics but few species are grown as health food andor for medicinal purposes. Among the different tuber crops, dioscorea alata, commonly called greater yam or water yam, is a tropical plant originated from south east asia. Floral biology and artificial pollination in dioscorea. Winged yam dioscorea alata is another nonnative, invasive vine in florida. Dioscorea alata definition of dioscorea alata by the free. Dioscorea alata synonyms, dioscorea alata pronunciation, dioscorea alata translation, english dictionary definition of dioscorea alata.
To ascertain the potential health benefits and alternate usage of the species, 20 varieties of dioscorea alata. Two new anthocyanins, cyanidin and peonidin 3gentiobioside acylated with sinapic acid, have been isolated from the tuber of dioscorea alata l. Studies of colletotrichum gloeosporioides disease on yam. Dioscorea yams genus dioscorea plant genus a genus of plants dioscoreaceae, family dioscoreaceae, yam family yams yam plant, yam any of a. It is also called as ube in philippines where it is consumed as a delicious and delightful sweet jam. Nutritional assessment of yam dioscorea alata tubers. Pdf control of dioscorea alata microtuber dormancy and. Qualitative phytochemical analysis and antibacterial. Dioscorea alata herb uses, benefits, cures, side effects. Yams description yam is the common name for some plant species in the genus dioscorea family dioscoreaceae that form edible tubers. Two acylated anthocyanins from dioscorea alata sciencedirect. Therefore, these ten cultivars have been used as the source of carbohydrate for a long time in the wakatobi community. Dioscorea synonyms, dioscorea pronunciation, dioscorea translation, english dictionary definition of dioscorea.
Extraction and potential effects on enzymes related to metabolic syndrome. Several species are widely cultivated in many cultivars including dioscorea alata d. This plant may be known by one or more common names in. Effects of three aqueous plant extracts in the control of. The water yam is a large, vigorous tender perennial vine that produces starchy, edible, bulbous tubers that may be white or purple fleshed. Winged yam gets it name from its winged internodes, a characteristic feature of the species. Dioscorea alata water yam, winged yam, uvi fiji, ufi tau. The objective of this study is to evaluate some nutritional properties of fourteen water yam d. Bintoro 2 1department of biology, state university of manado, in tonsaru tondano north sulawesi, indonesia. Dioscorea species are widely used plants not only in eastern traditional medicine but also in modern western medicine. Download 460 dioscorea stock photos for free or amazingly low rates. Dioscorea alata plant finder missouri botanical garden. 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. It produces a large root crop of edible subterranean tubers yams which are an important starchy food source in many tropical to subtropical areas around the globe.
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