Alstonia scholaris
What's the taxonomical classification of Alstonia scholaris?
Alstonia scholaris belongs to the kingdom Plantae and is classified within the phylum Streptophyta. Moving down the taxonomic hierarchy, it is placed in the class Equisetopsida and the subclass Magnoliidae. Within the order Gentianales, it is a member of the family Apocynaceae. Finally, the plant is categorized under the genus Alstonia, with its specific identification being the species scholaris.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Gentianales |
| Family | Apocynaceae |
| Genus | Alstonia |
| Species | scholaris |
What are the morphological characteristics of this plant?
Alstonia scholaris has pinnate leaves composed of several pairs of oblong to lanceolate leaflets that are arranged oppositely along a central rachis. These leaflets typically feature entire margins and a smooth, slightly leathery texture that distinguishes them from many other members of the Sapindaceae family. The plant develops a woody structure with a trunk and branches that can reach significant heights in its natural habitat. Small, inconspicuous flowers emerge in panicles, which eventually give way to fleshy, orange or red fruits. These fruits are often capsule-like and contain seeds that facilitate the plant's dispersal.
What is the geographical distribution of this plant?
This plant is native to the tropical and subtropical regions of Southeast Asia, specifically including countries such as Thailand, Malaysia, Indonesia, and parts of Southern China. It thrives in humid, lowland environments and is frequently found in secondary forests or along riverbanks. The species is also widely distributed across various islands within the Malay Archipelago. Because it prefers warm climates with high rainfall, its presence is strictly limited to these equatorial zones. Its natural range is defined by these specific moisture and temperature requirements.
How is this plant cultivated?
This plant, commonly known as the clown cane, requires bright, indirect sunlight and well-draining soil to thrive in a tropical environment.
It flourishes when kept in temperatures between 65 and 85 degrees Fahrenheit with consistent humidity levels. Regular watering is essential to keep the soil moist, though the roots should never sit in stagnant water. Providing organic fertilizer during the growing season helps support its vibrant, multicolored stalks.
Proper air circulation also prevents fungal issues from developing on its broad leaves.
What parts of this plant are used medicinally?
This plant known as Alstonia scholaris provides medicinal value through its bark, leaves, stem, juice, and epidermis. The bark is frequently decocted to treat malaria and various gastrointestinal ailments. Its leaves are often used in topical applications or infusions to reduce fever and inflammation. Extracts from the stem and the plant's natural juice serve as potent sources of alkaloids for treating digestive issues. Even the epidermis of certain parts can be utilized in traditional remedies to address specific skin or internal conditions.
According to a study published by "Integrative cancer therapies", the bark of Alstonia scholaris is used to create a hydro-alcoholic extracted material known as ASE. In studies involving Swiss albino mice, ASE was administered orally at a dosage of 100 mg/kg body weight/d for 5 consecutive days prior to whole-body gamma irradiation of 7.5 Gy. This treatment provided radioprotective efficacy against radiation-induced alterations where erythrocyte and hemoglobin levels declined significantly (P<.001) until the third day. While hematocrit percentage declined significantly (P<.001) until day 15 in irradiated mice, ASE-pretreated animals maintained significantly higher erythrocyte, hematocrit, and hemoglobin values. Furthermore, ASE pretreatment resulted in a considerably lower increase in lipid peroxidation and caused a significant increase in glutathione levels in both serum and liver compared to irradiated animals.
The parts of this plant that are ued medicinally are shown in the list below.
- bark
- leaf
- stem
- juice
- epidermis
What traditional systems uses this plant?
This plant, Alstonia scholaris, is utilized across various traditional healing practices such as Ayurveda, the Dai ethnomedicine system, Mizo traditional medicine, and the Siddha medicinal system to treat various ailments. In Ayurveda, it is frequently employed for its properties to manage fever and digestive issues. The Dai ethnomedicine system utilizes different parts of the tree to address specific localized illnesses. Mizo traditional medicine incorporates the plant into various herbal remedies for skin and systemic health. Similarly, the Siddha medicinal system relies on its botanical components to balance bodily elements and promote healing.
According to a study published by "Journal of ethnopharmacology", Alstonia scholaris (L.) R.Br. has been utilized in the Ayurveda and Siddha medicinal systems. These traditional uses have demonstrated promising anti-inflammatory and wound-healing properties. The study investigated the anti-psoriatic potential of the ethyl acetate and ethanolic extracts of Alstonia scholaris, referred to as ASEA and ASE. These extracts were subjected to phytochemical screening through high-performance liquid chromatography (HPLC) using the marker compound loganin. The research aimed to explore the underlying mechanisms of their phytoactivity in addressing psoriasis-like skin inflammation on human keratinocytes.
The hystorical systems that uses this plant are shown in the list below.
- Ayurveda
- Dai ethnomedicine system
- Mizo traditional medicine
- Siddha medicinal systems
What are the pharmacological activities of Alstonia scholaris?
This plant has anti-cancer, anti-inflammatory, anti-oxidative, antimicrobial, and anti-diabetic pharmacological activities derived from its diverse phytochemical constituents. Its anti-cancer properties involve inhibiting the growth of various malignant cell lines through specialized biochemical pathways. The plant also exhibits potent anti-inflammatory and anti-oxidative effects by neutralizing free radicals and reducing systemic swelling. Additionally, its antimicrobial activity helps combat various bacterial and fungal pathogens. These combined medicinal properties contribute significantly to its traditional use in treating metabolic disorders like diabetes.
According to a study published by "iScience", Alstonia scholaris is a medicinal plant that serves as a rich source of bioactive monoterpenoid indole alkaloids. These alkaloids possess anti-cancer activity similar to vinca alkaloids. The assembled 444.95 Mb genome of the plant contains 35,488 protein-coding genes. A total of 20 chromosomes were assembled with a scaffold N50 of 21.75 Mb. These genomic resources can be used for discovering biosynthetic pathways to produce pharmaceutically useful alkaloids.
The primary pharmacological activities of this plant are shown in the list below.
- anti-cancer
- anti-inflammatory
- anti-oxidative
- antibacterial
- antimicrobial
What medicinal compounds this plant contains?
This plant contains a diverse array of bioactive alkaloids including (E)-alstoscholarine, (Z)-alstoscholarine, Alstoniaschines A through I, Alstoscholarisine K, and scholaricine. These specialized medicinal compounds are primarily classified as indole alkaloids that contribute to the plant's pharmacological properties. Researchers have identified these specific chemical structures through extensive phytochemical analysis of the species. The presence of these various constituents suggests significant potential for developing new therapeutic agents. Detailed studies continue to investigate how each unique molecule interacts with biological systems to provide medicinal benefits.
According to a study published by "Journal of chromatography. B, Analytical technologies in the biomedical and life sciences", the alkaloidal leaf extracts of Alstonia scholaris were analyzed using UPLC-Q/TOF. This method identified 18 potential candidates based on unique mass spectrometric fragmentation. The study utilized 2 dual-luciferase reporter assay systems to demonstrate NF-κB inhibition and β2AR activation. Several indole alkaloids with anti-inflammatory and anti-asthmatic properties were found in the plant, including akuammidine, (E)-alstoscholarine, and (Z)-alstoscholarine.
The primary medicinal compounds of this plant are shown in the list below.
- (E)-alstoscholarine
- (Z)-alstoscholarine
- Alstoniaschines A‒I
- Alstoscholarisine K
- scholaricine
What health conditions is this plant used for?
This plant is used for treating cancer, malignant tumors, infectious diseases, and various conditions requiring antimicrobial properties. Researchers have investigated its specific anticancer potential to determine how it might inhibit the growth of harmful cells. The presence of bioactive compounds allows it to function effectively against a wide range of infectious diseases. Furthermore, its natural antimicrobial activity helps combat different types of bacterial and fungal pathogens. These medicinal properties make it a subject of significant interest in pharmacological studies.
According to a study published by "Journal of ethnopharmacology", the therapeutic use of Alstonia scholaris has been described in India for the treatment of malaria, jaundice, gastrointestinal troubles, and cancer. This plant is also used for many other ailments within both codified and non-codified drug systems. Among the reported biological and pharmacological activities for this species, antimicrobial and anticancer activities were noted as promising. The study highlights that Alstonia scholaris is rich in different types of bioactive alkaloids.
The main health conditions this plant is used for are shown in the list below.
- anticancer
- antimicrobial
- cancer
- infectious diseases
- malignant tumors
What are the herbal preparations of this plant?
This plant is used to produce various medicinal preparations including Alstonia scholaris bark extract, methanol extracts, an alkaloid fraction, a decoction, and hydro-alcoholic extracted material. Researchers utilize these different forms to isolate specific bioactive compounds responsible for the plant's therapeutic properties. For instance, methanol extracts and the alkaloid fraction are often studied for their concentrated chemical potency. A decoction provides a traditional method of water-based preparation, while hydro-alcoholic extracted material combines both solvents to improve solubility. These diverse preparations allow for a comprehensive investigation into the plant's pharmacological potential.
According to a study published by "Integrative cancer therapies", Alstonia scholaris has been used for centuries in Ayurvedic medicine for the treatment of various disorders. The study investigated the chemopreventive and anti-oxidative properties of the plant during a 16 week experiment on Swiss albino mice. Skin carcinogenesis was induced by a single application of 7, 12-dimethyabenz(a)anthracene at 100 ug/100 ul acetone, followed by repeated application of 1% croton oil in acetone thrice a week. Compared to the control, the Alstonia scholaris bark extract administered groups showed a significant increase in reduced glutathione, superoxide dismutase, and catalase alongside a decrease in lipid peroxidation. The results demonstrate the chemopreventive potential of the Alstonia scholaris bark extract in DMBA-induced skin tumorigenesis.
The main herbal preparations of this plant are shown in the list below.
- Alstonia scholaris bark extract
- Methanol extracts
- alkaloid fraction
- decoction
- hydro-alcoholic extracted material
What side effects this plant can have?
This plant can cause severe health complications including abdominal distension, colic, diarrhoea, emesis, and even death if ingested. Consuming the toxic parts of the species often leads to intense gastrointestinal distress characterized by vomiting and painful cramping. The resulting diarrhoea can cause rapid dehydration and further metabolic instability in the victim. These symptoms progress quickly and may lead to fatal outcomes in both humans and animals. Careful avoidance of all parts of this plant is necessary to prevent these life-threatening effects.
According to a study published by "Pharmaceuatical biology", sixty-two enrolled volunteers completed a trial investigating the safety of alkaloids from Alstonia scholaris leaves. No serious adverse events or clinically significant changes in vital signs, electrocardiography, or upper abdominal Doppler ultrasonography were observed. Treatment-emergent adverse events were reported in 11/46 (23.91%) of the CALAS groups compared to 3/16 (18.75%) in the placebo group. All adverse events were mild and transient, including hiccups (4/46: 8%), dry mouth and nausea (3/46: 6%), increased sleep (2/46: 4%), abdominal distension (1/46: 2%), and elevated bilirubin (1/46: 2%). The plant was found to be safe up to a single dose of 360 mg and up to 120 mg three times daily for 7 days.
The main side effects this plant can have are shown in the list below.
- abdominal distension
- colic
- death
- diarrhoea
- emesis
What herbs are paired with Alstonia scholaris?
This plant, commonly known as the scholar tree, pairs most effectively with aromatic herbs like rosemary, lavender, and sage in a garden landscape.
These woody perennials share similar sun requirements and soil drainage needs, ensuring they thrive in the same environment. The fine, feathery foliage of the scholar tree provides a delicate texture that contrasts beautifully with the broader leaves of sage. Incorporating lavender creates a sensory experience by combining the tree's subtle scent with strong floral notes.
These combinations also promote biodiversity by attracting a wide variety of pollinators to the shared space.