Gnetum cleistostachyum

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Gnetum cleistostachyum
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Division: Gnetophyta
Class: Gnetopsida
Order: Gnetales
Family: Gnetaceae
Genus: Gnetum
Species:
G. cleistostachyum
Binomial name
Gnetum cleistostachyum

Gnetum cleistostachyum is a liana species in the Sessiles subsection of the genus Gnetum described from South East Yunnan.

The name is still invalid and efloras states it is advisable to postpone validating it until more complete collections, particularly with seeds, can be studied. [1]

The stilbene derivatives, gnetucleistol A, B and C, gnetifolin A, p-hydroxycinnamic acid, piceatannol, resveratrol, [2] bisisorhapontigenin A, gnetuhainin P, gnetulin, [3] the stilbenolignans, gnetucleistol F, gnetofuran A, lehmbachol D, gnetifolin F and gnetumontanin, [4] gnetucleistol D (2-methoxyoxyresveratrol), gnetucleistol E (3-methoxy-isorhapontigenin), rhapontigenin, isorhapontigenin, 4-methoxyresveratrol and pinosylvin [5] can be found in G. cleistostachyum.

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<i>p</i>-Coumaric acid

p-Coumaric acid is a hydroxycinnamic acid, an organic compound that is a hydroxy derivative of cinnamic acid. There are three isomers of coumaric acid—o-coumaric acid, m-coumaric acid, and p-coumaric acid—that differ by the position of the hydroxy substitution of the phenyl group. p-Coumaric acid is the most abundant isomer of the three in nature. p-Coumaric acid exists in two forms trans-p-coumaric acid and cis-p-coumaric acid.

Pinosylvin

Pinosylvin is a pre-infectious stilbenoid toxin that is synthetized in plants during fungal infections, ozone induced stress and physical damage for example. It is a fungitoxin protecting the wood from fungal infection. It is present in the heartwood of Pinaceae and also found in Gnetum cleistostachyum.

Piceatannol

Piceatannol is a stilbenoid, a type of phenolic compound.

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Amurensin may refer to:

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Rhapontigenin

Rhapontigenin is a stilbenoid. It can be isolated from Vitis coignetiae or from Gnetum cleistostachyum.

Paeonol

Paeonol is a phenolic compound found in peonies such as Paeonia suffruticosa, in Arisaema erubescens, and in Dioscorea japonica. It is a component found in some Traditional Chinese medicine remedies.

Psoralidin

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Isorhapontigenin

Isorhapontigenin is a tetrahydroxylated stilbenoid with a methoxy group. It is an isomer of rhapontigenin and an analog of resveratrol. It is found in the Chinese herb Gnetum cleistostachyum, in Gnetum parvifolium and in the seeds of the palm Aiphanes aculeata.

Stilbenolignan

Stilbenolignans are phenolic compounds formed from a stilbenoid and a lignan.

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Amurensin A

Amurensin A is an oligostilbene isolated from the roots of Vitis amurensis. It is a partially oxidized resveratrol dimer with a C8-C8' connection.

4-Methoxyresveratrol

4-Methoxyresveratrol is a stilbenoid found in the Chinese herb Gnetum cleistostachyum.

Gnetucleistol D

Gnetucleistol D is a stilbenoid found in the Chinese herb Gnetum cleistostachyum.

Gnetucleistol E

Gnetucleistol E is a stilbenoid found in the Chinese herb Gnetum cleistostachyum.

Oligostilbenoid

Oligostilbenoids are oligomeric forms of stilbenoids. Some molecules are large enough to be considered polyphenols and constitute a class of tannins.

References

  1. Gnetum at efloras.org
  2. Yao, Chun-Suo; Lin, Mao; Liu, Xin; Wang, Ying-Hong (2005). "Stilbene derivatives from Gnetum cleistostachyum". Journal of Asian Natural Products Research. 7 (2): 131–7. doi:10.1080/10286020310001625102. PMID   15621615.
  3. Yao, CS; Lin, M (2005). "Bioactive stilbene dimers from Gnetum cleistostachyum". Natural Product Research. 19 (5): 443–8. doi:10.1080/14786410412331271041. PMID   15938189.
  4. Yao, CS; Lin, M; Wang, L (2006). "Isolation and biomimetic synthesis of anti-inflammatory stilbenolignans from Gnetum cleistostachyum". Chemical & Pharmaceutical Bulletin. 54 (7): 1053–7. doi: 10.1248/cpb.54.1053 . PMID   16819232. INIST:18028605.
  5. Yao Chun-Suo; Lin Mao; LIiu Xin; Wang Ying-Hong (2003). "Stilbenes from Gnetum cleistostachyum". Huaxue xuebao. 61 (8): 1331–1334. ISSN   0567-7351. INIST:15332136.