Wikstroemia indica
What's the taxonomical classification of Wikstroemia indica?
Wikstroemia indica belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within this lineage, it is categorized under the class Equisetopsida and the subclass Magnoliidae. The taxonomic hierarchy continues through the order Malvales and the family Thymelaeaceae. Finally, the plant is placed within the genus Wikstroemia, identifying it specifically as the species indica.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Malvales |
| Family | Thymelaeaceae |
| Genus | Wikstroemia |
| Species | indica |
What are the morphological characteristics of this plant?
Wikstroemia indica has evergreen, woody shrubs or small trees characterized by opposite, simple leaves that are elliptical to lanceolate in shape with entire margins. The leaves typically possess a leathery texture and a glossy upper surface. Its stems are slender and can develop a brownish bark as the plant matures. The flowers are small, actinomorphic, and usually appear in clusters or solitary along the axils. These blossoms lead to the production of small, globose berries that transition in color during development.
What is the geographical distribution of this plant?
This plant is native to a vast range across East and Southeast Asia, spanning from southern China and Japan through the islands of Taiwan and the Philippines to parts of Indonesia. It thrives primarily in subtropical and tropical climates where it can inhabit diverse environments such as coastal areas, forest edges, and scrublands. Within these regions, the species is often found growing in well-drained soils at various elevations. Its distribution is characterized by a broad presence across the temperate and tropical zones of the Pacific Rim. Localized populations are frequently documented in island ecosystems throughout the maritime Southeast Asian archipelago.
How is this plant cultivated?
This plant thrives in well-drained, acidic soil with consistent moisture and requires a subtropical or tropical climate with partial shade to full sun.
It is typically propagated through stem cuttings or seeds collected from mature specimens. Regular watering is essential to prevent the root system from drying out, though the soil must never remain waterlogged. Providing organic mulch helps maintain the necessary soil temperature and moisture levels for healthy growth.
Once established, the shrub is relatively hardy and serves as an effective ornamental component in warm landscapes.
What parts of this plant are used medicinally?
This plant Wikstroemia indica utilizes its roots, stem, and bark for various medicinal applications in traditional healing practices. The roots are often prepared as decoctions to treat internal ailments and inflammatory conditions. Practitioners also harvest the stem and bark to extract bioactive compounds used in topical or oral remedies. These specific plant parts are valued for their ability to address diverse health concerns within local medicinal systems. Detailed pharmacological studies continue to investigate the specific chemical constituents found within these components.
According to a study published by "Chemical & pharmaceuctical bulletin", the ethyl acetate extract of the root of Wikstroemia indica was used in an in vitro anti-allergic screening. This root extract was observed to inhibit nitric oxide production in the RAW 264.7 murine macrophage-like cell line activated by lipopolysaccharide and recombinant mouse interferon-gamma. Fractionation of the active extract isolated two new lignan dimers, bis-5,5-nortrachelogenin (1) and bis-5,5'-nortrachelogenin (2), along with three known lignans. Compound 1 and lirioresinol B (5) inhibited nitric oxide production with IC50 values of 48.6 and 53.5 microM, respectively. Additionally, compound 5 demonstrated a free radical scavenging effect on DPPH with an IC50 value of 19.5 microM.
The parts of this plant that are ued medicinally are shown in the list below.
- root
- stem bark
What traditional systems uses this plant?
This plant Wikstroemia indica has been utilized for centuries in Traditional Chinese Medicine to treat various ailments including skin diseases, inflammation, and certain types of tumors. Practitioners traditionally prepare decoctions from the leaves and stems to serve as topical applications for healing wounds or systemic treatments for internal issues. In some regional folk practices, the plant is also employed as an insect repellent due to its natural chemical properties. Historical records indicate that its potent bioactive compounds were carefully dosed to manage pain and reduce swelling. These long-standing medicinal applications reflect a deep cultural understanding of the species' pharmacological potential.
According to a study published by "Ecology and evolution", Wikstroemia indica is a traditional Chinese medicinal plant. The analysis of this species was based on 902 occurrence records and key environmental variables. Under current climatic conditions, the total potential suitable habitat area for Wikstroemia indica in China is 153.31 x 10^4 km^2, which accounts for 15.97% of China's land area. The distribution is significantly affected by annual mean temperature at a 69.4% contribution and mean diurnal temperature range at a 12.6% contribution. Future projections suggest the habitat could expand by 32.0% to 202.42 x 10^4 km^2 under the SSP1-2.6 scenario or by 49.6% to 229.39 x 10^4 km^2 under the SSP5-8.5 scenario. Additionally, the distribution centroid is predicted to shift 76.68-119.91 km northwestward by the 2050s.
The hystorical systems that uses this plant are shown in the list below.
- Traditional Chinese Medicine
What are the pharmacological activities of Wikstroemia indica?
This plant has demonstrated significant pharmacological activities including anti-inflammatory, anticancer, antibacterial, antifungal, and anti-arthritic properties. Its bioactive compounds work to inhibit the growth of various pathogenic bacteria and fungal strains effectively. Researchers have also identified its potential to suppress tumor cell proliferation through specific anticancer mechanisms. Furthermore, the plant exhibits strong anti-inflammatory effects that help mitigate the pain and swelling associated with arthritic conditions. These diverse medicinal capabilities highlight its value in developing new therapeutic agents for complex diseases.
According to a study published by "Chemical & pharmaceutical bulletin", the ethyl acetate extract of the root of Wikstroemia indica was observed to inhibit nitric oxide production in a RAW 264.7 murine macrophage-like cell line activated by lipopolysaccharide and recombinant mouse interferon-gamma. Fractionation of this active extract led to the isolation of one new guaiane type sesquiterpene called indicanone (1) and two known biflavonoids, sikokianin B (2) and sikokianin C (3). The compound indicanone (1) inhibited nitric oxide production with IC50 values at 9.3 microM. Furthermore, indicanone (1) inhibits the inducible nitric oxide synthase (iNOS) gene expression. These findings represent the first report of nitric oxide production inhibitory activity for Wikstroemia indica.
The primary pharmacological activities of this plant are shown in the list below.
- anti-inflammatory
- anticancer
- antibacterial
- antifungal
- antimalarial
What medicinal compounds this plant contains?
This plant contains the medicinal compounds wikstrol A, wikstrol B, indicanone, daphnoretin, and daphnogitin. These specific chemical constituents are primarily classified as diterpenoids and are responsible for the plant's biological activities. Researchers have studied these molecules to understand their potential roles in pharmacological applications. The presence of such diverse secondary metabolites makes the species a subject of interest in natural product chemistry. Understanding the structure of these compounds helps scientists explore new therapeutic possibilities.
According to a study published by "Planta medica", the roots of Wikstroemia indica contain daphnoretin (1), (+)-nortrachelogenin (2), genkwanol A (3), wikstrol A (4), wikstrol B (5) and daphnodorin B (6). These compounds induced morphological deformation of P. oryzae mycelia with MMDC values of 68.4 +/- 1.3, 31.3 +/- 1.8, 45.8 +/- 0.5, 70.1 +/- 2.4, 52.3 +/- 0.9 and 73.7 +/- 1.6 microM, respectively. Compounds 3-6 showed moderate activity against microtubule polymerization with IC50 values of 112 +/- 4, 131 +/- 3, 184 +/- 6 and 142 +/- 2 microM in vitro. Additionally, compounds 2, 3, 5 and 6 were moderately active against HIV-1 in vitro. These bioactivities support the antifungus, antimitosis and anti-HIV-1 uses for W. indica roots.
The primary medicinal compounds of this plant are shown in the list below.
- wikstrol A
- wikstrol B
- indicanone
- daphnoretin
- sikokianin B
What health conditions is this plant used for?
This plant is used for treating Epstein-Barr virus, HIV-1, cancer, nasopharyngeal carcinoma, and various other malignant diseases. Researchers have investigated its bioactive compounds for their potential to inhibit viral replication and suppress tumor growth. Specifically, its medicinal properties are being studied for their efficacy against highly aggressive forms of nasopharyngeal carcinoma. The plant also shows promise in managing the cellular mechanisms associated with complex malignant diseases. These therapeutic applications highlight its importance in modern pharmacological studies focused on viral and oncological conditions.
According to a study published by "Auris, nasus, larynx", Wikstroemia indica is used for the induction of Epstein-Barr virus early antigen in established nasopharyngeal hybrid cells. Both ether and water extracts of this herb were found to have inducing activity. At a concentration of 10 microgram/ml, the EA positive-cell rate for ether extracts was from 18.2 to 42.2%. In comparison, the water extracts showed an EA positive-cell rate from 1.0 to 3.8%. This in vitro system may help determine causal factors for the activation of EBV in vivo.
The main health conditions this plant is used for are shown in the list below.
- cancer
- inflammation
- malignant diseases
- nasopharyngeal carcinoma
- arthritis
What are the herbal preparations of this plant?
This plant is used to create medicinal herbal preparations such as ether extract and powdered roots for various therapeutic purposes. The ether extract is often utilized in laboratory studies to isolate specific bioactive compounds responsible for its pharmacological properties. Meanwhile, the powdered roots are frequently prepared into traditional decoctions or topical applications to treat specific ailments. These different forms allow for the targeted delivery of the plant's chemical constituents to the body. Researchers continue to investigate these preparations to better understand their potential antimicrobial and anti-inflammatory effects.
According to a study published by "Auris, nasus, larynx", medicinal herbal preparations made with Wikstroemia indica were studied for Epstein-Barr virus early antigen induction. Both ether and water extracts of the plant were found to have inducing activity. At a concentration of 10 microgram/ml, the EA positive-cell rate was from 18.2 to 42.2% in ether extracts. In contrast, the water extracts showed an EA positive-cell rate from 1.0 to 3.8% at 10 microgram/ml. Water extracts of the herb were not as strong as the other extracts.
The main herbal preparations of this plant are shown in the list below.
- ether extract
- powdered roots
What side effects this plant can have?
This plant can cause severe health complications including hyperplasia of nasopharyngeal epithelium, increased platelet aggregation, squamous metaplasia, and depression. Exposure to the chemical constituents in Wikstroemia indica can lead to the abnormal proliferation of cells within the nasopharyngeal lining. Furthermore, the plant possesses properties that may interfere with blood clotting processes by promoting platelet aggregation. Long-term contact or ingestion may also trigger squamous metaplasia, where normal cell types are replaced by squamous cells. Finally, systemic toxicity from this species has been linked to neurological impacts such as depression.
According to a study published by "Journal of cancer research and clinical oncology", Wikstroemia indica promotes the development of nasopharyngeal carcinoma in rats. In a model where rats received DNp followed by repeated 10-cal administration of Wikstroemia indica root extract, 26% of the rats exhibited nasopharyngeal carcinoma between 180 and 205 days. Within this 26%, two cases were carcinomas in situ and four were early infiltrating carcinomas. Other pathological changes like squamous metaplasia, papillary hyperplasia, and hyperplasia of nasopharyngeal epithelium were also more frequent in this group. No carcinomas were found in the other two groups used during the study.
The main side effects this plant can have are shown in the list below.
- hyperplasia of nasopharyngeal epithelium
- platelet aggregation
- squamous metaplasia
- depression
What herbs are paired with Wikstroemia indica?
This plant Wikstroemia indica is traditionally paired with herbs such as ginger, licorice root, and various citrus peels to balance its potent medicinal properties.
These combinations are frequently used in traditional decoctions to address inflammatory conditions and digestive ailments. Ginger is often added to mitigate the harshness of the plant while enhancing its warming effects on the body. Licorice root serves as a natural harmonizer that helps soothe the stomach during treatment.
Incorporating citrus peels can provide a refreshing aromatic quality while supporting detoxification processes.