Jump to content

Withania somnifera: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous editNext edit →
Content deleted Content added
VisualWikitext
Corrected bias
Tags: Mobile edit Mobile web edit
Offersaki (talk | contribs)
21 edits
m (edit summary removed)
Line 13: Line 13:
[[File:Withania somnifera MHNT.BOT.2012.10.13.jpg|thumb|Fruits]]
[[File:Withania somnifera MHNT.BOT.2012.10.13.jpg|thumb|Fruits]]


'''''Withania somnifera''''', known commonly as '''ashwagandha''',<ref name=GRIN>{{GRIN | accessdate = 2011-10-29 }}</ref> '''Indian ginseng''',<ref name=prota>{{cite web | url =http://database.prota.org/dbtw-wpd/exec/dbtwpub.dll?AC=GET_RECORD&XC=/dbtw-wpd/exec/dbtwpub.dll&BU=http%3A%2F%2Fdatabase.prota.org%2Fsearch.htm&TN=Protabase&SN=AUTO1559&SE=108&RN=0&MR=20&TR=0&TX=1000&ES=0&CS=1&XP=&RF=Webreport&EF=Basic+Record+Form&DF=Webdisplay&RL=0&EL=1&DL=0&NP=3&ID=&MF=&MQ=&TI=0&DT=&ST=0&IR=1202&NR=0&NB=0&SV=0&SS=0&BG=&FG=&QS=Search&OEX=ISO-8859-1&OEH=ISO-8859-1 | title = ''Withania somnifera'' (L.) Dunal | publisher = Gurib-Fakim A. and Schmelzer G. H. | work = PROTA (Plant Resources of Tropical Africa / Ressources végétales de l’Afrique tropicale) [Online Database] | location = Wageningen, Netherlands | accessdate = 2012-08-07 }}</ref> '''poison gooseberry''',<ref name=prota/> or '''winter cherry''',<ref name=GRIN/> is a plant in the [[Solanaceae]] or nightshade family. Several other species in the genus ''Withania'' are morphologically similar.<ref name="drugs">{{cite web|url=https://www.drugs.com/npp/ashwagandha.html|title= Ashwagandha|publisher=Drugs.com|date=2009|accessdate=27 August 2017}}</ref> Although thought to be useful as a [[herbalism|medicinal herb]] in [[Ayurveda]], there is no conclusive [[evidence-based medicine|clinical evidence]] by any pharmaceutical company that it is effective for treating any ailment.<ref name=drugs/><ref name="mlp">{{cite web|title=Ashwagandha|url=https://medlineplus.gov/druginfo/natural/953.html|publisher=MedlinePlus, US National Library of Medicine|accessdate=21 December 2017|date=26 June 2017}}</ref>
'''''Withania somnifera''''', known commonly as '''ashwagandha''',<ref name=GRIN>{{GRIN | accessdate = 2011-10-29 }}</ref> '''Indian ginseng''',<ref name=prota>{{cite web | url =http://database.prota.org/dbtw-wpd/exec/dbtwpub.dll?AC=GET_RECORD&XC=/dbtw-wpd/exec/dbtwpub.dll&BU=http%3A%2F%2Fdatabase.prota.org%2Fsearch.htm&TN=Protabase&SN=AUTO1559&SE=108&RN=0&MR=20&TR=0&TX=1000&ES=0&CS=1&XP=&RF=Webreport&EF=Basic+Record+Form&DF=Webdisplay&RL=0&EL=1&DL=0&NP=3&ID=&MF=&MQ=&TI=0&DT=&ST=0&IR=1202&NR=0&NB=0&SV=0&SS=0&BG=&FG=&QS=Search&OEX=ISO-8859-1&OEH=ISO-8859-1 | title = ''Withania somnifera'' (L.) Dunal | publisher = Gurib-Fakim A. and Schmelzer G. H. | work = PROTA (Plant Resources of Tropical Africa / Ressources végétales de l’Afrique tropicale) [Online Database] | location = Wageningen, Netherlands | accessdate = 2012-08-07 }}</ref> '''poison gooseberry''',<ref name=prota/> or '''winter cherry''',<ref name=GRIN/> is a plant in the [[Solanaceae]] or nightshade family. Several other species in the genus ''Withania'' are morphologically similar.<ref name="drugs">{{cite web|url=https://www.drugs.com/npp/ashwagandha.html|title= Ashwagandha|publisher=Drugs.com|date=2009|accessdate=27 August 2017}}</ref> Although thought to be useful as a [[herbalism|medicinal herb]] in [[Ayurveda]], there is no conclusive [[evidence-based medicine|clinical evidence]] that it is effective for treating any ailment.<ref name=drugs/><ref name="mlp">{{cite web|title=Ashwagandha|url=https://medlineplus.gov/druginfo/natural/953.html|publisher=MedlinePlus, US National Library of Medicine|accessdate=21 December 2017|date=26 June 2017}}</ref>


==Description==
==Description==

Revision as of 17:42, 17 August 2020

Withania somnifera
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Solanales
Family: Solanaceae
Genus: Withania
Species:
W. somnifera
Binomial name
Withania somnifera
Synonyms[1]
  • Physalis somnifera L.
  • Withania kansuensis Kuang & A. M. Lu
  • Withania microphysalis Suess.
Flower
Fruits

Withania somnifera, known commonly as ashwagandha,[2] Indian ginseng,[3] poison gooseberry,[3] or winter cherry,[2] is a plant in the Solanaceae or nightshade family. Several other species in the genus Withania are morphologically similar.[4] Although thought to be useful as a medicinal herb in Ayurveda, there is no conclusive clinical evidence that it is effective for treating any ailment.[4][5]

Description

This species is a short, tender perennial shrub growing 35–75 cm (14–30 in) tall. Tomentose branches extend radially from a central stem. Leaves are dull green, elliptic, usually up to 10–12 cm (4 to 5 in) long. The flowers are small, green and bell-shaped. The ripe fruit is orange-red.

Etymology

The species name somnifera means "sleep-inducing" in Latin.[6] The name, ashwagandha, is a combination of the Sanskrit words ashva, meaning horse, and gandha, meaning smell, reflecting that the root has a strong horse-like odor.[5]

Cultivation

Withania somnifera is cultivated in many of the drier regions of India. It is also found in Nepal, China[7] and Yemen.[8] It prefers dry stony soil with sun to partial shade. To propagate it can be grown from seed in the early spring, or from greenwood cuttings in the later spring.[9]

Diseases and pests

Withania somnifera is prone to several pests and diseases. Leaf spot disease caused by Alternaria alternata is the most prevalent disease, which occurs in a severe form in Punjab, Haryana, and Himachal Pradesh. A decline in the concentration of its secondary metabolites occurs by leaf spot disease.[10] A treehopper feeds on the apical portions of the stem, making them rough and woody in appearance and brown in colour.[citation needed]

The carmine red spider mite (Tetranychus urticae) is the most prevalent pest of the plant in India.[11] In recent years, this plant has been serving as a new reservoir host for an invasive mealybug species Phenacoccus solenopsis.[12]

Phytochemistry

The main phytochemical constituents are withanolides – which are triterpene lactones – withanolides, withaferin A, alkaloids, steroidal lactones, tropine, and cuscohygrine.[4] Some 40 withanolides, 12 alkaloids, and numerous sitoindosides have been isolated.[4] Withanolides are structurally similar to the ginsenosides of Panax ginseng, leading to a common name for W. somnifera, "Indian ginseng".[4]

Traditional medicine

Druggist's jar containing dried roots of Withania somnifera.
Dried roots of Withania somnifera.

The plant, particularly its root powder, has been used for centuries in traditional Indian medicine.[4][7] Mainly due to the poor quality of clinical research, there is no high-quality evidence that it provides any medicinal benefit and may cause adverse effects if taken together with prescription drugs.[4][5][13] Dietary supplements containing ashwagandha are marketed in the U.S., but there is no evidence they have any effect.[4]

References

  1. ^ "Withania somnifera (L.) Dunal". Tropicos. Missouri Botanical Garden. Retrieved 25 Feb 2012.
  2. ^ a b "Withania somnifera". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 2011-10-29.
  3. ^ a b "Withania somnifera (L.) Dunal". PROTA (Plant Resources of Tropical Africa / Ressources végétales de l’Afrique tropicale) [Online Database]. Wageningen, Netherlands: Gurib-Fakim A. and Schmelzer G. H. Retrieved 2012-08-07.
  4. ^ a b c d e f g h "Ashwagandha". Drugs.com. 2009. Retrieved 27 August 2017.
  5. ^ a b c "Ashwagandha". MedlinePlus, US National Library of Medicine. 26 June 2017. Retrieved 21 December 2017.
  6. ^ Stearn, W. T. (1995). Botanical Latin: History, Grammar, Syntax, Terminology and Vocabulary (4th ed.). Timber Press. ISBN 978-0-88192-321-6.
  7. ^ a b Pandit, S.; Chang, K.-W.; Jeon, J.-G. (February 2013). "Effects of Withania somnifera on the growth and virulence properties of Streptococcus mutans and Streptococcus sobrinus at sub-MIC levels". Anaerobe. 19: 1–8. doi:10.1016/j.anaerobe.2012.10.007. PMID 23142795.
  8. ^ Hugh Scott & Kenneth Mason, Western Arabia and the Red Sea, Naval Intelligence Division: London 1946, p. 597 ISBN 0-7103-1034-X.
  9. ^ Deni., Bown (1995). Encyclopedia of herbs & their uses. Montréal: RD Press. ISBN 0888503342. OCLC 32547547.
  10. ^ Pati, P. K.; Sharma, M.; Salar, R. K.; Sharma, A.; Gupta, A. P.; Singh, B. (2009). "Studies on leaf spot disease of Withania somnifera and its impact on secondary metabolites". Indian Journal of Microbiology. 48 (4): 432–437. doi:10.1007/s12088-008-0053-y. PMC 3476785. PMID 23100743.
  11. ^ Sharma, A.; Pati, P. K. (2012). "First record of the carmine spider mite, Tetranychus urticae, infesting Withania somnifera in India". Journal of Insect Science. 12 (50): 1–4. doi:10.1673/031.012.5001. PMC 3476950. PMID 22970740.
  12. ^ Sharma, A.; Pati, P. K. (2013). "First record of Ashwagandha as a new host to the invasive mealybug (Phenacoccus solenopsis Tinsley) in India". Entomological News. 123 (1): 59–62. doi:10.3157/021.123.0114.
  13. ^ "Ashwagandha". New York City: Memorial Sloan Kettering Cancer Center. 13 April 2018. Retrieved 26 May 2018.

Media related to Withania somnifera at Wikimedia Commons

Retrieved from "https://en.wikipedia.org/enwiki/w/index.php?title=Withania_somnifera&oldid=973520994"