Nauclea orientalis
What's the taxonomical classification of Nauclea orientalis?
Nauclea orientalis belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within the class Equisetopsida and the subclass Magnoliidae, it is placed in the order Gentianaales. This plant is a member of the Rubiaceae family, falling under the genus Nauclea, and is specifically identified by the species name orientalis.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Gentianales |
| Family | Rubiaceae |
| Genus | Nauclea |
| Species | orientalis |
What are the morphological characteristics of this plant?
Nauclea orientalis has large, elliptic to oblong leaves that are oppositely arranged on woody stems and possess prominent pinnate venation. The foliage typically reaches lengths of up to 30 centimeters and exhibits a glossy, dark green texture on the upper surface. Its inflorescence consists of dense, globular heads containing numerous small, creamy-white flowers that emit a subtle fragrance. These flowering heads are supported by long peduncles and emerge from the leaf axils. The plant also develops woody, branching structures that support its dense, shrubby or small tree-like growth habit.
What is the geographical distribution of this plant?
This plant is native to the tropical regions of Southeast Asia, specifically encompassing countries such as Thailand, Malaysia, Indonesia, and parts of Southern China. It typically thrives in low-lying areas where the climate remains consistently warm and humid. Its natural habitat is often centered around riverbanks, swamps, and seasonally flooded forests. These specific environments provide the moist soil conditions necessary for the species to flourish. Due to these environmental requirements, its range is strictly limited to these equatorial and subtropical zones.
How is this plant cultivated?
This plant requires well-draining, acidic soil and consistent moisture levels within a warm, tropical climate to thrive.
It prefers partial shade to protect its delicate foliage from intense direct sunlight. Regular fertilization with organic matter supports its vigorous growth and healthy root development. Adequate humidity is essential, so providing frequent misting or maintaining a high-moisture environment can prevent leaf drop.
Proper spacing during planting ensures adequate airflow to mitigate the risk of fungal diseases.
What parts of this plant are used medicinally?
This plant Nauclea orientalis provides medicinal value through the use of its bark, leaves, and stems. The bark is frequently harvested to prepare decoctions that treat various ailments such as fever and inflammation. Leaves are often crushed or boiled to create remedies for skin conditions and digestive issues. Additionally, the stems are utilized in traditional preparations to address specific systemic health concerns. These diverse components work together to provide a wide range of therapeutic applications in folk medicine.
According to a study published by "Journal of natural products", the bark of Nauclea orientalis was used to isolate several compounds. Four new alkaloids, nauclealines A (1) and B (2) and naucleosides A (3) and B (4), were identified from this plant part. These were found alongside six known compounds, including strictosamide (5), vincosamide (6), pumiloside (7), kelampayoside A, sitosterol, and sitosteryl beta-D-glucoside. The structures of 1-4 were elucidated using 1D and 2D NMR spectral methods such as COSY, DEPT, HMQC, (13)C-(1)H HMBC, and (15)N-(1)H HMBC.
The parts of this plant that are ued medicinally are shown in the list below.
- bark
- leaves
- stems
What traditional systems uses this plant?
This plant Nauclea orientalis is utilized in various traditional medicine systems across Southeast Asia to treat ailments such as fever, malaria, and inflammatory conditions.
Local healers often prepare decoctions from the bark or leaves to address digestive issues and skin infections. In some regional practices, the roots are processed to create remedies intended to soothe aches and reduce swelling. These historical applications rely on the plant's perceived bioactive properties to manage various physical discomforts.
Such long-standing medicinal uses highlight the cultural importance of the species in indigenous healthcare traditions.
What are the pharmacological activities of Nauclea orientalis?
This plant has anti-infective, antiproliferative, antitumor, and cytotoxic pharmacological activities driven by its diverse secondary metabolites. The presence of indole alkaloids contributes significantly to its ability to combat various infectious agents. These chemical compounds also demonstrate potent antiproliferative effects by inhibiting the rapid division of abnormal cells. Furthermore, the plant exhibits antitumor properties that assist in disrupting the progression of certain malignancies. Its cytotoxic nature allows it to induce programmed cell death in targeted cancerous cell lines.
According to a study published by "Journal of medicinal plant research", Nauclea orientalis is one of the species investigated for major components with potential antitumo r, anti-infective, and other types of bioactivities. The bioactive compounds isolated from these Lao plants include alkaloids, glycerol esters, phenolic compounds such as lignans and stilbenoids, steroids, and triterpenoids. Within these findings, specific compounds like the norlignan, nyasol (1b), the triterpene pyracrenic acid [3β-O-trans-caffeoylbetulinic acid (3)], the betulinic acid (3b), and the dimeric thiopyridine, dipyrithione (5), show both cancer cell cytotoxicity and anti-infective activity. These findings provide information on higher plants in Laos to help stimulate future discoveries for the treatment of cancer, infections, and other diseases.
The primary pharmacological activities of this plant are shown in the list below.
- anti-infective
- antiproliferative
- antitumoor
- cytotoxic
What medicinal compounds this plant contains?
This plant contains a diverse range of bioactive medicinal compounds, specifically 10-hydroxyangustine, various angustine-type alkaloids, nauclealines A, nauclealines B, and nauclorieniine. These secondary metabolites are primary contributors to the botanical profile of Nauclea orientalis. The presence of these specific alkaloids is often studied for their potential pharmacological properties. Researchers frequently investigate these chemical constituents to understand their impact on biological systems. Such complex chemical compositions make the plant a significant subject in phytochemical research.
According to a study published by "Planta medica", nine angustine-type alkaloids were isolated from ammoniacal extracts of Nauclea orientalis L. (Rubiaceae). Among these isolates, 3 compounds, specifically 10-hydroxyangustine and the 2 diastereoisomeric 3,14-dihydroangustolines, have not been described in the literature thus far. These alkaloids were found to exhibit in vitro anti-proliferative activity against the human bladder carcinoma T-24 cell line and against EGF-dependent mouse epidermal keratinocytes. Using overpressure layer chromatography, it was shown that minor quantities of these alkaloids occur in dried Nauclea orientalis leaves. The extraction process using ammonia results in a significant increase in the formation of these alkaloids from strictosamide-type precursors.
The primary medicinal compounds of this plant are shown in the list below.
- 10-hydroxyangustine
- angustine-type alkaloids
- kelampayoside A
- nauclealines A
- nauclealines B
What health conditions is this plant used for?
This plant is used for treating A-549, HL-60, MCF-7, SMMC-7721, and SW480 cancer cell lines. Scientific research indicates that extracts from Nauclea orientalis possess potent cytotoxic properties against these specific types of malignant cells. These studies focus on how the plant's bioactive compounds can inhibit the growth and proliferation of various cancer lineages. The therapeutic potential is being evaluated to determine its effectiveness in combating lung, leukemia, breast, liver, and colon cancer models. This ongoing investigation highlights the importance of the plant in developing new pharmacological agents for oncology.
According to a study published by "Natural product research", Nauclea orientalis was used to evaluate cytotoxicities against 5 human cancer cell lines, which include HL-60, SMMC-7721, A-549, MCF-7 and SW480 in vitro. A new indole alkaloid named nauclorieniene (1) and 7 known alkaloids (2-8) were isolated from the stems and leaves of the plant. Alkaloids 1-4 demonstrated significant inhibitory effects against these various human cancer cell lines. These specific alkaloids exhibited IC50 values that were comparable to those of cisplatin.
The main health conditions this plant is used for are shown in the list below.
- A-549 cancer
- HL-60 cancer
- MCF-7 cancer
- SMMC-7721 cancer
- SW480 cancer
What are the herbal preparations of this plant?
This plant is utilized to create medicinal herbal preparations such as decoctions of the bark and infusions of the leaves to treat various ailments. Local healers often boil the woody parts of the plant to extract alkaloids that possess antimalarial and anti-inflammatory properties. These liquid extracts are sometimes combined with other botanical ingredients to enhance their therapeutic efficacy against tropical fevers. Some traditional practitioners also prepare topical pastes from crushed plant matter to apply directly to skin inflammations. The specific methods of preparation depend heavily on the targeted symptom and the part of the plant used.
The main herbal preparations of this plant are shown in the list below.
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What side effects this plant can have?
This plant can cause adverse health effects such as gastrointestinal distress, dizziness, and skin irritation when consumed or applied incorrectly. Individuals using extracts from this species may experience nausea or stomach cramps due to its potent chemical composition. Some users also report feeling lightheaded or experiencing bouts of vertigo after ingestion. Furthermore, topical contact with certain parts of the plant has been known to trigger localized allergic reactions or rashes on the skin. Careful monitoring is necessary to avoid these various physical complications.
The main side effects this plant can have are shown in the list below.
What herbs are paired with Nauclea orientalis?
This plant Nauclea orientalis is commonly paired with herbs such as ginger, turmeric, and cinnamon to enhance its therapeutic properties in traditional medicine.
These combinations are often used in decoctions to balance the bitter profile of the bark and roots. Ginger is frequently added to stimulate digestion and improve the absorption of the plant's active alkaloids. Turmeric is sometimes incorporated to provide additional anti-inflammatory benefits during the brewing process.
Cinnamon is utilized in certain regional preparations to provide a warming effect and improve the overall flavor of the tonic.