Rauvolfia micrantha

Rauvolfia micrantha · Accepted scientific name

Scientific literature: Very Sparse (0 studies) · ★☆☆☆☆

Rauvolfia micrantha is a significant botanical species known for producing valuable bioactive compounds such as ajmalicine and ajmaline. Researchers frequently focus on the plant's root systems to isolate these essential chemical constituents for pharmaceutical applications. To study these properties, various biotechnological approaches are employed, including the use of aseptic seedlings and hypocotyl explants. Furthermore, specialized techniques such as hairy root cultures and normal root cultures allow for controlled production of secondary metabolites. Understanding these diverse plant parts and preparations is crucial for optimizing the extraction of its medicinal alkaloids.

Quick facts
Synonyms
Rauvolfia Indosinensis · Rauvolfia Membranifolia · 1 more
Common names
Not available
Family
Apocynaceae
Distribution
Not available
Plant Parts
Root

Classification

Common Names

Rauvolfia micrantha is a botanical species widely recognized by its local Thai name, ระย่อมใบบาง. This plant belongs to the Apocynaceae family and is often noted for its specific leaf characteristics. Throughout various regions, it serves as an important subject for both traditional knowledge and scientific study. Understanding its unique identity helps researchers distinguish it from other closely related members of the genus. By identifying it as ระย่อมใบบาง, enthusiasts can more easily locate and categorize this particular plant in the wild.

Sources: Catalogue of Life (COL)

Synonyms

Rauvolfia micrantha is a plant species that is frequently identified by various botanical synonyms in scientific literature. One recognized synonym for this species is Rauvolfia indosinensis, which reflects different taxonomic classifications. Additionally, the plant has been referred to as Rauvolfia membranifolia in certain botanical contexts. It is also documented under the name Rauvolfia vietnamensis, highlighting its regional naming variations. Understanding these overlapping names is essential for accurate identification and study within the genus.

Sources: The World Checklist of Vascular Plants (WCVP)

Taxonomy

Rauvolfia micrantha is a fascinating botanical specimen that belongs to the kingdom Plantae. Within this vast kingdom, it is specifically categorized under the class Equisetopsida. This plant is further classified into the order Gentianales, showcasing its unique evolutionary lineage. As a member of the family Apocynaceae, it shares characteristics with many other notable flowering species. Finally, it is identified by its specific genus, Rauvolfia, which defines its botanical identity.

Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Gentianales
Family Apocynaceae
Genus Rauvolfia

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

Geographic Regions

Rauvolfia micrantha is a plant species with a widespread presence throughout the tropical regions of Asia. Its natural distribution spans the vast landscapes of the Indian Subcontinent, including many parts of India. The species is also highly prevalent across the Indo-China peninsula, establishing itself in diverse habitats. Specifically, it can be found growing in the lush environments of Cambodia, Laos, Thailand, and Vietnam. This broad geographic range highlights the plant's adaptability to various tropical ecosystems across the continent.

Sources: The World Checklist of Vascular Plants (WCVP)

Identification

Morphology

Rauvolfia micrantha is a self-supporting plant that maintains its own structural integrity without the need for external support.

Sources: Global Inventory of Floras and Traits (GIFT)

Biological Activities

Compounds

Rauvolfia micrantha is a rare and endemic medicinal plant recognized for its significant biochemical properties. Research has confirmed that this species contains the valuable alkaloids ajmalicine and ajmaline. These secondary metabolites were successfully produced in both normal root cultures and specialized hairy root cultures. Specifically, the application of certain auxins in the growth medium was shown to significantly enhance the yield of both ajmaline and ajmalicine. This discovery marks the first formal report of these specific chemical compounds being produced within the hairy root cultures of the plant.

Conditions

Preparations

Rauvolfia micrantha is prepared as aseptic seedlings to facilitate further tissue culture processes. These seedlings serve as the source for hypocotyl explants used in the induction of specialized cultures. Through this method, Rauvolfia micrantha is prepared as hairy root cultures using Agrobacterium rhizogenes. Additionally, the plant is prepared as normal root cultures to study the production of ajmalicine and ajmaline. These various preparation methods allow for the efficient cultivation of the medicinal plant's important alkaloids.

Parts used

Rauvolfia micrantha is a rare and endemic medicinal plant that holds significant biochemical potential. Research has focused on utilizing the root of this species to produce valuable alkaloids such as ajmalicine and ajmaline. By inducing hairy root cultures from hypocotyl explants, scientists can effectively cultivate these essential compounds in a controlled environment. Studies demonstrate that the application of specific auxins in the growth medium significantly enhances the yield of these medicinal substances compared to normal root cultures. This breakthrough represents the first successful report of producing ajmaline and ajmalicine through the specialized cultivation of Rauvolfia micrantha hairy roots.