Tectona grandis
Tectona grandis · Accepted scientific name
Scientific literature: Very Sparse (3 studies) · ★☆☆☆☆
Tectona grandis is a versatile botanical species known for its significant medicinal properties derived from its leaves, flowers, and fruits. Scientific investigations into its methanolic extracts and isolated compounds have revealed potent antibacterial, anthelmintic, anti-HIV, and anticancer activities. The presence of key chemical constituents, such as iron and 6-methyl-1,4-dihydroxyanthraquinone, plays a crucial role in its therapeutic potential. Various preparations, including leaf extracts and specific chemical fractions, are utilized to address diverse health conditions. Consequently, this plant shows great promise in managing ailments ranging from malaria and bronchitis to cholelithiasis and hemorrhoids.
- Synonyms
- Jatus Grandis · Tectona Grandis F. Abludens · 6 more
- Common names
- Not available
- Family
- Lamiaceae
- Distribution
- Not available
- Plant Parts
- Leaf · Flower
Classification
Common Names
Tectona grandis is a highly versatile tree known by a diverse array of regional names. It is frequently referred to as Bangkok teak in certain botanical circles, showcasing its global significance. In other areas, it is recognized by the unique names Didysis tikmedis and Granda tektono. The species is also widely celebrated under the common moniker of Indian Oak. Whether called Indian-oak or by its other aliases, this plant remains a vital subject of study.
Sources: Catalogue of Life (COL)
Synonyms
Tectona grandis is a botanical species that is known by several different scientific names throughout various classifications. It is formally recognized under the synonym Jatus grandis in certain historical records. The plant also encompasses several distinct forms, including the varieties Tectona grandis f. abludens and Tectona grandis f. canescens. Additional taxonomic variations are identified as Tectona grandis f. pilosula and Tectona grandis f. punctata. Understanding these various synonyms is essential for accurate identification and study within the field of botany.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Tectona grandis is a remarkable species that belongs to the vast kingdom Plantae. Within this biological kingdom, it is specifically classified under the class Equisetopsida. This plant is a distinguished member of the genus Tectona, which defines its unique morphological traits. Further taxonomic refinement places it within the order Lamiales, showcasing its evolutionary connections. Finally, its lineage is completed by its membership in the family Lamiaceae.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Tectona |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Tectona grandis maintains a significant presence across the African continent, showcasing a diverse geographical distribution. In Northeast Tropical Africa, the species is notably found within the regions of Sudan and South Sudan. Its range extends further into South Tropical Africa, where it is established in Angola. The plant also thrives throughout West Tropical Africa, making appearances in countries such as Benin, Gambia, and Togo. This wide-reaching footprint highlights the adaptability of the species to various African environments.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Tectona grandis is a robust, self-supporting tree that establishes a commanding presence in its ecosystem. Reaching a maximum height of 30 meters, this species exhibits a sturdy growth form designed for stability. Its impressive stature makes it a significant feature of the forest canopy.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Tectona grandis, commonly known as teak, serves as a versatile resource in traditional folk medicine due to its diverse pharmacological properties. Research indicates that the fruits of this plant possess significant antibacterial activity, particularly against various Gram-negative bacteria strains. In addition to its antimicrobial potential, certain isolated compounds from the plant have demonstrated potent antioxidant capacities. The species is also widely recognized for its medicinal use as a reputed laxative in specific African regions. Together, these biological activities highlight the therapeutic importance of T. grandis in treating various ailments ranging from digestive issues to oxidative stress.
Compounds
Tectona grandis is a plant of significant medicinal interest due to its diverse chemical profile and nutritional value. Research has identified that its leaves contain a variety of bioactive compounds, including flavonoids and terpenoids. Notably, the plant also contains tectone, a new anthraquinone that has demonstrated significant antihyperglycemic activity. Beyond these organic compounds, Tectona grandis is a highly promising source of iron, which is essential for treating conditions such as anaemia. These combined properties underscore the importance of the species in both pharmacological research and traditional ethnomedicine.
Conditions
Tectona grandis demonstrates significant therapeutic potential through its ability to treat malaria, as evidenced by the antiplasmodial activity of its methanol fractions against Plasmodium falciparum. The plant also exhibits potent antibacterial properties, specifically targeting Escherichia aerogenes (ATCC 13048) with the compound 6-methyl-1,4-dihydroxyanthraquinone. Furthermore, Tectona grandis treats Escherichia coli (ATCC 8739) through the moderate activity of the isolated metabolite tectograndone. Its medicinal value extends to the treatment of Gram-negative Escherichia coli when used in the synthesis of silver nanoparticle nanocatalysts. Finally, the phytochemicals in the leaves of Tectona grandis contribute to antibacterial activity against the Gram-positive Bacillus cereus.
Preparations
Tectona grandis is prepared as leaf extract to investigate its ability to ameliorate hepatic fibrosis by modulating the TGF-β/Smad signaling pathway. The plant is also prepared as aqueous extracts to evaluate its toxicological profile and potential for treating typhoid fever in traditional medicine. Research further shows that Tectona grandis is prepared as methanolic extracts, which are utilized to study antioxidant, anti-inflammatory, and anti-diabetic activities. These methanolic preparations are further processed so that the plant is prepared as fractions to identify specific therapeutic agents. Finally, Tectona grandis is prepared as isolated compounds, such as those identified through spectral experiments, to reveal novel medicinal properties and inhibitory activities.
Parts used
Tectona grandis is a medicinal plant of significant pharmacological importance, with various parts offering diverse therapeutic benefits. The leaves of the plant are rich in bioactive compounds that provide potent antioxidant, anti-inflammatory, and antihyperglycemic activities. Additionally, the flowers contain polyphenolic constituents that demonstrate significant blood glucose-lowering effects in diabetic models. The fruits also hold medicinal value, as they possess specific metabolites capable of exhibiting strong antibacterial activity against various bacterial strains. Collectively, these different components of Tectona grandis highlight its extensive potential for treating inflammation, diabetes, and infectious diseases.