Stemona tuberosa
Stemona tuberosa · Accepted scientific name
Scientific literature: Very Sparse (2 studies) · ★☆☆☆☆
Stemona tuberosa is a medicinal plant primarily valued for the therapeutic properties found within its dried root tubers. Various preparations, including Stemonae Radix (SR), non tai yak, and crude-alkaloid extracts, are utilized to harness its biological potential. The plant is scientifically recognized for its significant antitussive activities, making it a useful resource for managing cough-related conditions. Research into its chemical composition has identified key compounds such as 1,9a-seco-Stemoenonine, 3,5-dihydroxy-4-methylbibenzyl, 3-hydroxy-2',5-dimethoxy-2-methylbibenzyl, and 9a-O-methylstemoenonine. Furthermore, recent studies have highlighted its promising antitumor capabilities, suggesting broader medicinal applications for this species.
- Synonyms
- Not available
- Common names
- Not available
- Family
- Stemonaceae
- Distribution
- Not available
- Plant Parts
- Root
Classification
Common Names
Stemona tuberosa is a versatile plant recognized by a wide variety of names across different cultures and languages. In many regions, it is commonly referred to as da bai bu or dui ye bai bu. It is also widely known simply by its botanical namesake, Stemona. In Russian-speaking areas, the species is identified as Стемона клубневая. Finally, in Thailand, this unique plant is frequently called หนอนตายหยาก.
Sources: Catalogue of Life (COL)
Taxonomy
Stemona tuberosa is a specialized botanical species belonging to the kingdom Plantae. Within this vast kingdom, the plant is classified under the class Equisetopsida. It follows the biological order Pandanales, which helps define its evolutionary lineage. Furthermore, this species is a member of the Stemonaceae family. It is ultimately identified by its specific membership in the genus Stemona.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Pandanales |
| Family | Stemonaceae |
| Genus | Stemona |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Stemona tuberosa exhibits a broad geographical range that spans across various temperate and tropical regions of Asia. In China, this species is widely distributed, appearing in South-Central and Southeast regions as well as on the island of Hainan. Its presence extends further into Eastern Asia, where it can be found growing in Taiwan. Beyond these mainland territories, the plant also thrives in the tropical climates of the Indian Subcontinent, specifically within Assam. This diverse distribution highlights the plant's ability to adapt to multiple ecological zones across the continent.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Stemona tuberosa is a self-supporting herb characterized by its distinct growth form. This plant can reach a maximum height of approximately 4 meters as it develops. Its structural nature allows it to stand firmly within its natural habitat.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Stemona tuberosa is a significant medicinal plant found within the rich biodiversity of Laos. Research indicates that this species possesses notable antitumor activity, with its bioactive compounds demonstrating potential cytotoxicity against cancer cells. Furthermore, the dried root tubers of this plant serve as an original source for Stemonae Radix, which is widely utilized for its antitussive properties. Scientists have developed advanced chromatographic fingerprinting methods to evaluate the chemical quality and authenticity of these medicinal roots. These findings highlight the therapeutic importance of the plant in the ongoing search for new agents to treat cancer and respiratory ailments.
Compounds
Stemona tuberosa is a plant of significant pharmacological interest due to the diverse array of bioactive compounds found within its roots. Chemical investigations have identified several specific alkaloids, including 9a-O-methylstemoenonine, oxystemoenonine, and oxystemoninine. Furthermore, the plant contains bisdehydrostemoninine, a stemoninine-type alkaloid that has demonstrated notable antitussive properties. Beyond these alkaloids, researchers have also isolated the bibenzyl glycoside stilbostemin B 3'-beta-d-glucopyranoside from the root extracts. These findings highlight the complex chemical profile of the species and its potential applications in treating cough and neurotoxic conditions.
Conditions
Stemona tuberosa serves as a significant medicinal source for antitussive treatments, particularly through its various alkaloids. The plant's bibenzyl glycosides have been shown to protect human neuroblastoma cells against 6-hydroxydopamine-induced neurotoxicity. Additionally, the root-derived alkaloid stemtuberoline C demonstrates notable anti-TMV activity. In studies involving animal models, components of the plant effectively treat citric acid-induced cough. These medicinal effects are specifically validated within the citric acid-induced guinea pig cough model.
Preparations
Stemona tuberosa is prepared as Non tai yak, a Thai traditional crude drug used for isolating iminosugar compounds. The dried root tubers of this species serve as the original source for the production of Stemonae Radix (SR), which is utilized for its antitussive and insecticidal activities. Additionally, the plant's roots are used as a primary material for extracting various chemical constituents. These roots can be processed into a crude-alkaloid extract to isolate specific stemoninine-type alkaloids. Through these various forms, the plant provides a diverse range of medicinal and chemical components.
Parts used
Stemona tuberosa is a medicinal plant whose primary therapeutic value is derived from its root components. Scientific investigations have successfully isolated several new bibenzyls and unique alkaloids, such as stemtuberolines A-G, specifically from these root structures. These underground tubers serve as the original source for Stemonae Radix, a traditional material used for its antitussive and insecticidal properties. Because the chemical constituents within the root tubers can vary based on processing methods, advanced chromatographic fingerprinting is essential for quality evaluation. Ultimately, the diverse chemical profile found in the roots of Stemona tuberosa provides significant potential for both medicinal applications and antiviral activities.