Stephania longa
Stephania longa · Accepted scientific name
Scientific literature: Very Sparse (1 studies) · ★☆☆☆☆
Stephania longa is a medicinal plant that has garnered significant scientific interest due to its potent biological properties. Research indicates that the plant possesses notable antiviral activities that can be harnessed for therapeutic purposes. Specifically, the presence of the chemical compound cepharanthine plays a crucial role in its pharmacological profile. This compound has shown promise in addressing specific conditions, including the management of SARS-CoV-2. Scientists typically utilize either whole plants or concentrated extracts to study and apply these medicinal benefits.
- Synonyms
- Stephania Hispidula · Stephania Japonica Var. Hispidula · 1 more
- Common names
- Not available
- Family
- Menispermaceae
- Distribution
- Not available
- Plant Parts
- Not available
Classification
Common Names
Stephania longa is a unique botanical species known by several different names across various cultures and languages. In English-speaking regions, it is commonly referred to as Long Stephania. Its identity is further expanded through Japanese nomenclature, where it is called ケハスノハカズラ or コバノハスノハカズラ. The plant is also recognized by the Chinese names 毛千金藤 and 粪箕笃. Understanding these diverse common names helps enthusiasts identify this specific plant in various global contexts.
Sources: Catalogue of Life (COL)
Synonyms
Stephania longa is a botanical species that has been subject to various taxonomic reclassifications over time. Due to these historical shifts, the plant is frequently identified by several established synonyms in scientific literature. It is commonly referred to in older texts as Stephania hispidula. Additionally, the species has been linked to the varieties Stephania japonica var. australis and Stephania japonica var. hispidula. Understanding these overlapping names is essential for researchers tracking the plant's formal classification.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Stephania longa belongs to the vast kingdom Plantae, representing a unique branch of the natural world. Within this kingdom, it is classified under the class Equisetopsida and falls into the order Ranunculales. This botanical specimen is further identified as a member of the genus Stephania. More specifically, it resides within the family Menispermaceae, which defines its closely related relatives. Through this scientific hierarchy, we can better understand the intricate biological placement of this distinctive plant.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Ranunculales |
| Family | Menispermaceae |
| Genus | Stephania |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Stephania longa is a distinctive plant species primarily distributed throughout the Asia-Temperate regions. Its presence is most notable across various parts of China, including the South-Central and Southeast provinces. The species also thrives in the tropical environment of Hainan, showcasing its adaptability to different climates. Furthermore, its range extends into Eastern Asia, specifically encompassing Taiwan and the Nansei-shoto islands. This widespread geographical footprint highlights the plant's significant ecological role within these diverse Asian habitats.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Stephania longa is characterized by an obligatory climbing habit that dictates its growth pattern. This specialized way of life allows the plant to reach a maximum height of approximately 3 meters.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Stephania longa is a medicinal plant that has gained significant attention due to its unique biochemical properties. It is most notably recognized for producing cepharanthine, a compound that possesses potent antiviral activity against SARS-CoV-2. Recent genomic research has focused on developing high-quality, chromosome-level assemblies to better understand how this plant synthesizes such important metabolites. By integrating genomic, transcriptomic, and metabolomic data, scientists are uncovering the complex genetic pathways responsible for cepharanthine biosynthesis. These findings establish a vital foundation for the future therapeutic exploitation of the plant's natural alkaloids.
Compounds
Stephania longa is a medicinal plant highly valued in traditional Chinese medicine for its rich profile of bioactive alkaloids. A key component of this species is cepharanthine, a compound that has gained significant attention for its potential antiviral properties against SARS-CoV-2. Beyond this primary metabolite, the plant serves as a source for various other complex hasubanan-type alkaloids. Detailed chemical analyses have identified the presence of isolonganone and isostephaboline within its tissues. Additionally, the plant contains specific secondary metabolites such as isoprostephabyssine and norprostephabyssine, highlighting its diverse biosynthetic potential.
Conditions
Stephania longa exhibits significant therapeutic potential through its ability to treat various human cancer cell lines, including MCF7, BT20, A549, and U2OS. Research indicates that extracts from this plant demonstrate cytotoxicity against breast cancer (BT20 and MCF7), lung cancer (A549), and bone cancer (U2OS) cells. Furthermore, the plant possesses notable antiviral properties, specifically showing the ability to treat SARS-CoV-2. These biological activities are linked to the biosynthesis of cepharanthine within the species. Consequently, the plant serves as a valuable source for developing both anticancer and antiviral treatments.
Preparations
Stephania longa is utilized in medicinal research both as prepared extracts and as whole plants. In studies evaluating Yao ethnomedicine, extracts of the species were tested for their potential anticancer properties and cytotoxicity against various human cancer cell lines. These extracts also demonstrated significant selectivity against cancer cells compared to normal cell lines and were shown to induce apoptosis. Furthermore, the whole plants of Stephania longa serve as a source for isolating numerous alkaloids, including thirteen newly discovered hasubanan type stephalonines. Through these different preparations, the plant provides both pharmacological efficacy and complex chemical constituents for scientific study.