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Relationship of Tectoquinone to Durability in Tectona grandis
Nature, 1958THE heartwood of teak (Tectona grandis L.f.) is extremely resistant to attack by insects or by fungi; but the reasons for this resistance are not known. It is usually ascribed to the presence of toxic substances, and it has been suggested that tectoquinone (β-methyl anthraquinone), which is characteristically present in teak heartwood, may be ...
P. RUDMAN +3 more
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Effect of Tectona grandis on phenylhydrazine-induced anaemia in rats
Fitoterapia, 2008Traditional oral report indicates that Tectona grandis is used in the treatment of anaemia in Togo. For this purpose, the extract of T. grandis leaves is evaluated on anaemia model of rat induced by intraperitoneal injection of phenylhydrazine at 40 mg/kg for 2 days. Oral administration of T.
Aboudoulatif, Diallo +8 more
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Note: A NAPHTHOQUINONE DERIVATIVE FROM TECTONA GRANDIS (LINN.)
Journal of Asian Natural Products Research, 2004A new naphthoquinone derivative has been isolated, along with a number of prenylnaphthoquinone congeners, from the heartwood of Tectona grandis (Linn.). It was characterized as dehydro-alpha-isodunnione (1) by careful analysis of its spectral data.
Pradeep K, Gupta, Pahup, Singh
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Microfungi on Tectona grandis (teak) in Northern Thailand
Fungal Diversity, 2016To date there is virtually no information available concerning the fungi associated with Tectona grandis (teak) (Lamiaceae) in Thailand. In this study, samples of microfungi were collected from both asymptomatic stems and dead wood, and symptomatic branches, stem and leaves of T.
Mingkwan Doilom +9 more
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Insect pollinators of teak (Tectona grandis) in Kerala
Indian Journal of Forestry, 2009Insects play a major role in pollination of teak. Insect visitation was observed to commence in the morning and continued till noon after which the activity decreased. Maximum insect visit coincided with the anthesis, which occurred from 8 AM to 12 PM. Insects observed on the teak florescence belonged to the orders Hymenoptera, Lepidoptera, Coleoptera,
K. Mohanadas +2 more
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TREE BREEDING WITH TEAK (TECTONA GRANDIS)
Australian Forestry, 1962SUMMARY Teak is one of the most important commercial trees in the tropical lowlands. Considerable attention is toeing devoted to tree breeding with teak in countries possessing1 indigenous forests. The importance of selecting provenance strains and of tree breeding work in countries establishing exotic teak forests is stressed.
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A 1,4-Anthraquinone derivative from Tectona grandis
Phytochemistry, 1989Abstract A petrol extract of the heartwood of Tectona qrandis afforded a new 9,10-dimethoxy-2-methyl anthra-1,4- quinone along with tecomaquinone I and several known naptho- and anthra-quinone derivatives. The structure of the new quinone was elucidated by high field 1 H NMR and NOE studies.
Pahup Singh +2 more
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Clones production of Tectona grandis
2014A Tectona grandis é uma espécie florestal de interesse comercial que apresenta extensos plantios no mundo. Sua madeira pode ser destinada para diversas finalidades, incluindo aplicações nobres que elevam o seu preço no mercado. Contudo, apesar da importância, há uma carência de pesquisas em relação à multiplicação clonal em larga escala de genótipos ...
Santos, Anne Francis Agostini +6 more
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