Duguetia staudtii explained

Duguetia staudtii is a medium-sized evergreen tree within the Annonaceae family. Species is one of four within the genus Duguetia that is native to Africa.[1]

Description

Tree grows up to 36 meters tall. Straight, cylindrical trunk that can be branchless for up to 20 meters, stem bark is rarely scaly, commonly thick and soft and yellow or grey-green in colour.[2] Leaf: simple, alternate arrangement, petiole, 0.2 - 0.5 cm. Leaf-blade, narrowly elliptical to obovate in outline, 10 x 24 cm long and 2 x 5 cm wide;[3] dark green upper surface is coriaceous and glabrous while lower surface is duller.

Distribution

Occurs in Tropical West and Central Africa, from Sierra Leone to the Central African Republic and southwards to Gabon and the Democratic Republic of Congo. It is locally called Ntom in Central African Republic.[4]

Chemistry

Stem bark contains the bioactive compounds, 2,4,5 trimethoxystyrene and 1-(2,4,5- trimethoxyphenyl)-ethanone.[5] [6] It contains members of the group of alkaloids: berberines, tetrahydroprotoberberines and aporphines.[7]

Uses

Bark extracts used by traditional healers as treatment for bronchitis, toothache, edema and head lice. Wood used as timber in local carpentry work, especially as planks or for poles in house construction.

Notes and References

  1. Book: Timbers. 2008. PROTA Foundation. D. Louppe, A. A. Oteng-Amoako, M. Brink, Plant Resources of Tropical Africa. 978-90-5782-209-4. Wageningen. 323–324. 299747129.
  2. Book: Voorhoeve, A. G.. Liberian high forest trees : a systematic botanical study of the 75 most important or frequent high forest trees, with reference to numerous related species. 1979. Pudoc. 90-220-0701-4. 2nd impr. Wageningen. 57. 63303450.
  3. Web site: Yapi. T.. Boti. J.. Félix. Tonzibo Z.. Ahibo. Antoine Coffy. 2012. Pachypodanthium Staudtii Engl & Diels from Côte d'Ivoire: Composition of Leaf, Stem Bark and Roots Oils. 96718956. en.
  4. Ngouonpe. Alain W.. Mbobda. Alexis Sylvain W.. Happi. Gervais M.. Mbiantcha. Marius. Tatuedom. Ostend K.. Ali. Muhammad S.. Lateef. Mehreen. Tchouankeu. Jean Claude. Kouam. Siméon F.. 2019. Natural products from the medicinal plant Duguetia staudtii (Annonaceae). Biochemical Systematics and Ecology. en. 83. 22–25. 10.1016/j.bse.2018.12.015. 91652782.
  5. 1989-01-01. Pachypophyllin and pachypostaudins A and B: three bisnorlignans from pachypodanthium staudtii. Phytochemistry. en. 28. 1. 231–234. 10.1016/0031-9422(89)85044-7. 1989PChem..28..231N . 0031-9422 . Ngadjui . Bonaventure T. . Lontsi . David . Ayafor . Johnson Foyere . Sondengam . B. Lucas .
  6. Nahar. Lutfun. Sarker. Satyajit D.. 2006. Isolation and Characterization of 2,4,5-Trimethoxy-benzaldehyde and 1-(2,4,5-trimethoxyphenyl)-Ethanone from Pachypodanthium Staudtii, and their General Toxicity towards Brine Shrimps. Natural Product Communications. en. 1. 5. 1934578X0600100. 10.1177/1934578X0600100506. 1934-578X. free.
  7. Book: Cassels. Bruce. The alkaloids : chemistry and biology. Volume 68. Perez. Edwin. 2010. Elsevier. Geoffrey A. Cordell. 978-1-283-02035-0. Amsterdam. Alkaloids from the Genus Duguetia. 1127154170.

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