Mitragyna inermis

Mitragyna inermis · Accepted scientific name

Scientific literature: Very Sparse (6 studies) · ★☆☆☆☆

Mitragyna inermis is a botanical species recognized for its diverse pharmacological potential, particularly through the use of its leaves and bark. Scientific investigations into its acetone-water, aqueous, and dichloromethane preparations have revealed significant bioactive properties. The plant is rich in essential chemical constituents, including flavonoids, condensed tannins, arjungenin, and ellagic acid. These compounds contribute to its notable anthelmintic, antioxidant, antiplasmodial, and antiviral activities. Research has specifically demonstrated its efficacy against challenging biological conditions such as Malaria, Bacillus subtilis, and Pseudomonas syringae.

Quick facts
Synonyms
Adina Inermis · Nauclea Africana · 5 more
Common names
Not available
Family
Rubiaceae
Distribution
Asia-Tropical
Plant Parts
Leaf

Classification

Common Names

Mitragyna inermis is a plant species recognized by several distinct regional names. It is commonly referred to as Jun in certain areas. In other contexts, the species is known by the name Shɛɣu. Furthermore, historical botanical records such as Crétois (1983: 72) identify it as Xoos. These varied common names highlight the diverse linguistic traditions associated with the plant.

Sources: Catalogue of Life (COL)

Synonyms

Mitragyna inermis is a botanical species that has been classified under several different scientific names throughout history. In various taxonomic records, it is recognized by the synonym Adina inermis. The plant is also frequently associated with several names within the Nauclea genus, including Nauclea africana, Nauclea inermis, and Nauclea platanocarpa. Additionally, the nomenclature includes the synonym Platanocarpum africanum. These shifting classifications highlight the complex and evolving nature of plant relationships within botanical studies.

Sources: The World Checklist of Vascular Plants (WCVP)

Taxonomy

Mitragyna inermis is a fascinating botanical specimen that belongs to the vast kingdom Plantae. Within this diverse kingdom, the plant is classified under the class Equisetopsida. It is further categorized into the order Gentianales, which helps scientists understand its evolutionary lineage. The species is a member of the genus Mitragyna, a group known for its specific structural characteristics. Finally, it finds its taxonomic home within the Rubiaceae family, connecting it to many other well-known tropical plants.

Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Gentianales
Family Rubiaceae
Genus Mitragyna

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

Geographic Regions

Mitragyna inermis is a plant species with a broad distribution spanning across the African continent. In Northeast Tropical Africa, it can be found throughout regions such as Chad and the areas encompassing Sudan and South Sudan. Its presence extends into West Tropical Africa, where it is commonly documented in Benin and Burkina Faso. Additionally, the species is known to inhabit the territory of Gambia. This wide geographical range highlights the adaptability of the plant within diverse African ecosystems.

Sources: The World Checklist of Vascular Plants (WCVP)

Identification

Morphology

Mitragyna inermis is a distinct tree species characterized by its sturdy, self-supporting growth form. This botanical specimen can reach a significant stature, often standing at a height of at least 6.1 meters. For many mature individuals, the height typically settles into a range starting around 12 meters. At its most impressive, the tree can reach a maximum height of approximately 12.19 meters. These dimensions make it a notable presence within its natural habitat.

Sources: Global Inventory of Floras and Traits (GIFT)

Biological Activities

Mitragyna inermis is a versatile medicinal plant that exhibits a diverse range of biological activities beneficial to both human and animal health. Research has confirmed its potent anthelmintic properties, making it a valuable resource in traditional veterinary medicine for treating gastrointestinal parasites in small ruminants. Beyond parasite control, the plant demonstrates significant antioxidant activity through its ability to scavenge free radicals. Its therapeutic potential extends to combating infectious diseases, as evidenced by its strong antiplasmodial activity against various strains of Plasmodium falciparum. Furthermore, Mitragyna inermis has shown promising antiviral effects, specifically demonstrating activity against human coronaviruses including HCoV-229E and SARS-CoV-2.

Compounds

Mitragyna inermis has emerged as a significant subject of study due to its potential role in addressing the global challenge of malaria. Recent bio-guided investigations have successfully isolated several natural products from the stem bark and twigs of this medicinal plant. Notably, the plant was found to contain arjungenin, a compound identified during the purification process. Furthermore, research confirmed that Mitragyna inermis contains ellagic acid, which demonstrated potent cross-activity against both sensitive and multidrug-resistant strains of Plasmodium falciparum. These findings highlight the therapeutic promise of the plant's chemical constituents as starting points for new antimalarial drug discovery.

Conditions

Mitragyna inermis demonstrates significant antioxidant properties by effectively scavenging the 2,2'-diphényl-1-picrylhydrazyl (DPPH) radical. The plant also exhibits potent antimicrobial activity, showing efficacy against the bacteria Bacillus subtilis and Pseudomonas syringae. Additionally, its extracts have been found to treat the fungus Cladosporium herbarum. Regarding veterinary applications, the plant serves as an effective anthelmintic agent against the nematode Haemonchus contortus. These diverse biological activities highlight the plant's broad therapeutic potential against various pathogens and oxidative stress.

Preparations

Mitragyna inermis is prepared as acetone-water extracts to evaluate their ability to inhibit larval migration in gastrointestinal nematodes. The plant is also prepared as aqueous extracts to estimate its antioxidant and anthelmintic activities. Research has utilized the bark of Mitragyna inermis to isolate triterpenoid saponins with potential anti-tumor properties. Additionally, the plant is prepared as a dichloromethane fraction to investigate its biological effects compared to crude extracts. Finally, Mitragyna inermis is prepared as an ethanol fraction during the study of various hydroethanolic extract components.

Parts used

Mitragyna inermis is a medicinal plant highly valued in traditional veterinary medicine for its ability to treat gastrointestinal parasites in small ruminants. Research indicates that the leaves of this species are particularly significant, as they are frequently utilized to create effective extracts and powders. Studies have demonstrated that these leaf extracts possess notable antioxidant and anthelmintic properties, successfully reducing the motility and migration of worms like Haemonchus contortus. The efficacy of the plant's leaves can be influenced by seasonal variations and agro-ecological origins, with dry-season harvests often showing superior results. Ultimately, the scientific validation of the leaf's bioactive compounds supports its long-standing role in sustainable parasite control.