Biology:Lycium chinense

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Short description: Species of flowering plant

Lycium chinense
Lycium chinense marnay 25 sept 2008.jpg
Lycium chinense fruits
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Solanales
Family: Solanaceae
Genus: Lycium
Species:
L. chinense
Binomial name
Lycium chinense
Mill.
Synonyms[1][2]
  • Lycium barbarum var. chinense (Mill.) Aiton
  • Lycium megistocarpum var. ovatum (Poir.) Dunal
  • Lycium ovatum Poir.
  • Lycium potaninii Pojark.
  • Lycium rhombifolium Dippel
  • Lycium sinense Gren.
  • Lycium trewianum Roem. & Schult.

Lycium chinense is one of two species of boxthorn shrub in the family Solanaceae. Along with Lycium barbarum, it produces the goji berry ("wolfberry"). Two varieties are recognized,[3] L. chinense var. chinense and L. chinense var. potaninii. It is also known as Chinese boxthorn, Chinese matrimony-vine, Chinese teaplant, Chinese wolfberry, wolfberry,[4] and Chinese desert-thorn.[5]

Description

Wolfberry species are deciduous woody shrubs, growing 1–3 metres (3 ft 3 in–9 ft 10 in) high, somewhat shorter than L. barbarum. The stems are highly branched. Branches are pale gray, slender, curved or pendulous, with thorns 0.5–2 centimetres (0.20–0.79 in) long.[3]

Leaves

Lycium chinense leaves form on the shoot either solitary in an alternating arrangement or in bundles of 2 to 4. Their shape may be ovate, rombic, lanceolate, or linear-lanceolate, usually 1.5–5 centimetres (0.59–1.97 in) long and 0.5–2.5 centimetres (0.20–0.98 in) wide (but up to 10 centimetres (3.9 in) long and 4 centimetres (1.6 in) wide in cultivated plants).[3]

Flowers

The flowers grow in groups of one to three in the leaf axils, with pedicels 1–2 centimetres (0.39–0.79 in) long.[3] The bell-shaped or tubular calyx (eventually ruptured by the growing berry) splits halfway into short, triangular, densely ciliate lobes. The corollae is a tube that splits into lavender or light purple petals, 9–14 mm (0.35–0.55 in) wide with five or six lobes longer than the tube, with short hairs at the edge. The stamens are structured with filaments longer than the anthers, slightly shorter or longer than the corolla, with a villous ring slightly above the base and the adjacent corolla tube.[3] The anthers are longitudinally dehiscent.

Fruit and seeds

Lycium chinense produces a bright orange-red berry, whose shape is ovoid or oblong, 7–15 millimetres (0.28–0.59 in) long and 5 to 8 mm wide (but up to 22 millimetres (0.87 in) long and 10 millimetres (0.39 in) wide in cultivation).[3] It contains compressed yellow seeds, from 2.5 to 3 mm wide, with a curved embryo; their number varies widely based on cultivar and fruit size, from 10 to 60. The berries ripen from July to October in the Northern Hemisphere.

Disease

It can be parasitized by the oomycete species Peronospora lycii.[6]

Use

The fruits may be infused with hot water to make goji tea. The plant has been used for centuries in traditional Chinese medicine for treating various disorders,[citation needed] although there is no high-quality clinical evidence that consuming it has any effect on health or disease.

Chemistry

The fruit composition is similar to that of L. barbarum, with polysaccharides, carotenoids and flavonoids as main constituents.[7] Rutin is a prominent flavonoid, while the main carotenoid is zeaxanthin dipalmitate (49% of the carotenoid fraction), with β-carotene, two cerebrosides, and three pyrrole derivatives as other constituents.[7]

Dozens of secondary metabolites have been isolated and identified from the roots, root bark, and leaves, including cyclic peptides, alkaloids, and flavonoids.[7] Citric acid is the major nonvolatile organic acid in the leaves followed by oxalic acid.[7]

Gallery

  • Habitus

  • Leaves and buds

  • Leaves and flower

  • Leaves and flower

  • Berries

  • Dried berries

See also

References

  1. ↑ "The Plant List: Lycium chinense var. chinense". http://www.theplantlist.org/tpl/record/tro-29605810. 
  2. ↑ "The Plant List: Lycium chinense var. potaninii". http://www.theplantlist.org/tpl/record/tro-29604676. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "Flora of China treatment for L. chinense". http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200020538. 
  4. ↑ {{citation | mode = cs1 | title = Lycium chinense | work = Germplasm Resources Information Network (GRIN) | url = | publisher = [[Organization:Agricultural Research ServAgricultural Research Service (ARS), United States Department of Agriculture (USDA) | access-date = 10 January 2018 }}
  5. ↑ "Lycium chinense". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=LYCH. Retrieved 24 June 2015. 
  6. ↑ Constantinescu, O. (1991). "An annotated list of Peronospora names". Thunbergia 15. 
  7. ↑ 7.0 7.1 7.2 7.3 Olivier Potterat (2010). "Goji (Lycium barbarum and L. chinense): Phytochemistry, pharmacology and safety in the perspective of traditional uses and recent popularity". Planta Medica 76 (1): 7–19. doi:10.1055/s-0029-1186218. PMID 19844860. 

External links

Wikidata ☰ Q141303 entry



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