Sophora tonkinensis

Sophora tonkinensis · Accepted scientific name

Scientific literature: Very Sparse (2 studies) · ★☆☆☆☆

Sophora tonkinensis is a significant Chinese medicinal plant primarily valued for its diverse biological activities, including potent antitumor and antiviral properties. The therapeutic potential of this species is largely attributed to key bioactive chemicals such as matrine, oxymatrine, trifolirhizin, and bayin. Researchers frequently study various plant parts, including the root, seed, and rhizome, to extract these valuable compounds. Scientific investigations often focus on the resilience of the plant under challenging conditions like dehydration, drought, and cryopreservation, while also monitoring for potential cardiotoxicity. Advanced cultivation and preservation methods frequently utilize nodal explants and somatic embryogenesis (STE) to manage rhizome-based preparations effectively.

Quick facts
Synonyms
Cephalostigmaton Tonkinensis
Common names
Not available
Family
Fabaceae
Distribution
Not available
Plant Parts
Root · Seed

Classification

Common Names

Sophora tonkinensis is a botanical species known by several distinct names across different regions and languages. In its native context, it is frequently referred to by the common name Hòe Bắc Bộ. It is also widely recognized in scientific and international circles as Tonkinsofora or simply Vietnamese sophora. Furthermore, the plant holds a significant place in traditional medicine under the name shan dou gen. This name is also written in Chinese characters as 山豆根, reflecting its deep cultural roots.

Sources: Catalogue of Life (COL)

Synonyms

Sophora tonkinensis is a distinctive plant species that is frequently encountered in botanical literature. In many taxonomic records, it is recognized by its synonym, Cephalostigmaton tonkinensis. This nomenclature overlap can sometimes cause confusion for researchers studying its specific classification. However, understanding these synonymous relationships is essential for accurate identification and data collection. Recognizing both names ensures that botanical information remains consistent across various scientific databases.

Sources: The World Checklist of Vascular Plants (WCVP)

Taxonomy

Sophora tonkinensis is a distinctive member of the kingdom Plantae. Within this vast biological realm, it is classified under the class Equisetopsida. The species belongs to the order Fabales, which helps define its evolutionary lineage. Further specialization places it within the family Fabaceae, a group known for its diverse botanical characteristics. Ultimately, this plant is identified by its specific genus, Sophora.

Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Fabales
Family Fabaceae
Genus Sophora

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

Geographic Regions

Sophora tonkinensis is a plant species characterized by a widespread distribution across several key regions of Asia. Within the temperate zones of China, it can be found throughout both the South-Central and Southeast provinces. The species also extends its reach into tropical environments located in the Indo-China peninsula. Specifically, it is documented as growing within the borders of Vietnam. This diverse range highlights the plant's ability to adapt to varying climatic conditions across the continent.

Sources: The World Checklist of Vascular Plants (WCVP)

Identification

Biological Activities

Sophora tonkinensis is a traditional Chinese medicinal herb that possesses significant therapeutic potential due to its diverse biological activities. Research into its elemental composition reveals a high concentration of zinc relative to copper, a characteristic often found in effective antitumor traditional medicines. Beyond its mineral profile, the seeds of this plant yield unique quinolizidine alkaloids that demonstrate powerful biological effects. Specifically, certain matrine-type alkaloids extracted from the species have shown significant antiviral activity against the tobacco mosaic virus. These combined properties highlight the plant's importance in both pharmacological research and the development of novel botanical agents.

Compounds

Sophora tonkinensis is a significant medicinal plant that serves as a rich source of various bioactive compounds. Research indicates that the plant contains key alkaloids such as matrine and oxymatrine, which are essential to its medicinal value. Furthermore, the metabolic profile of the species includes the flavonoid glycoside trifolirhizin. Studies involving endophytic fungi from the plant have also identified the presence of 5-methylmellein. Additionally, the roots of the plant have been found to contain the flavonol known as bayin.

Conditions

Sophora tonkinensis exhibits diverse biological capabilities, such as improving plant growth to treat Cd exposure and Cd stress through the regulation of DNA methylation genes. The plant also demonstrates significant immunomodulatory effects by treating IL-4-driven M2 macrophage polarization, effectively reprogramming them toward a pro-inflammatory M1 phenotype. In agricultural applications, specific genes from the species can treat PEG-induced osmotic stress to enhance plant resilience. Additionally, the medicinal properties of the plant include the ability to treat analgesic activity, contributing to its traditional use in various therapies.

Preparations

Sophora tonkinensis is a widely cultivated Chinese medicinal plant that is frequently prepared as rhizomes for the isolation of bioactive alkaloids and flavonoids. In laboratory settings, the plant is prepared as nodal explants (1.5-2.0 cm) to facilitate in vitro shoot multiplication. Research also utilizes a standardized extract of Sophora tonkinensis (STE) to investigate its ability to reprogram tumor-associated macrophages toward an M1-like phenotype. Additionally, the species is a component of TA pharmacopuncture, a seven-herb extract used as a treatment for various acute sprains.

Parts used

Sophora tonkinensis is a versatile medicinal plant that yields a diverse array of bioactive compounds from its various anatomical parts. Research indicates that the roots serve as a rich source of quinolizidine alkaloids and isoflavones, including the multifunctional flavonoid glycoside trifolirhizin. The seeds of the species are equally significant, containing matrine-type alkaloids and arylbenzofurans that exhibit potent insecticidal and antiviral properties. Furthermore, the rhizomes of the plant provide unique cytisine-type alkaloids and isoflavans with notable cytotoxic activities. Collectively, these chemical profiles from the roots, seeds, and rhizomes highlight the plant's extensive potential for pharmacological and agricultural applications.