Solanum nigrum
What's the taxonomical classification of Solanum nigrum?
Solanum nigrum 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. The plant is further organized under the order Solanales and is a member of the family Solanaceae. Finally, its specific biological identity is defined by its placement in the genus Solanum, with its unique species designation being nigrum.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Solanales |
| Family | Solanaceae |
| Genus | Solanum |
| Species | nigrum |
What are the morphological characteristics of this plant?
Solanum nigrum has an herbaceous growth habit characterized by erect, branched stems that can reach heights of up to sixty centimeters and feature ovate, green leaves with wavy or irregularly toothed margins. The foliage is typically soft and may exhibit a slightly hairy texture on the surface or along the veins. Small, star-shaped white flowers emerge in clusters, each possessing five petals and a prominent central cone of yellow anthers. These flowers eventually develop into small, globose berries that transition from green to a dark purple or black color when fully ripe. The entire plant possesses a fleshy structure that supports its rapid reproductive cycle.
What is the geographical distribution of this plant?
This plant is native to tropical and subtropical regions of the world, specifically across parts of Asia, Africa, and the Americas. Due to human activity and trade, it has become widely naturalized in many temperate zones globally. It is commonly found growing as a weed in disturbed soils, agricultural fields, and along roadsides across most continents. Its ability to thrive in diverse climates allows it to establish populations in both urban and rural environments. Consequently, it is now considered a cosmopolitan species found in nearly every major geographic region.
How is this plant cultivated?
This plant, known as black nightshade, thrives in well-drained, nutrient-rich soils with consistent moisture and partial to full sun exposure.
Seeds should be sown directly into the ground or started indoors several weeks before the last frost to ensure optimal growth. Maintaining a regular watering schedule is essential to prevent the soil from drying out completely during the warmer months. As the plant matures, it requires minimal intervention beyond occasional weeding and monitoring for common pests.
Harvesting the ripe, dark berries must be done with caution to ensure they are fully mature.
What parts of this plant are used medicinally?
This plant Solanum nigrum provides medicinal value through its leaves, berries, fruit, root, and stem-bark. The leaves are often prepared as a decoction to treat inflammatory conditions or digestive issues. While the berries and fruit are commonly utilized in traditional remedies, they must be handled with care due to their varying toxicity levels. The root is frequently employed in herbal formulations to address fever or skin ailments. Finally, the stem-bark serves as a traditional component in various topical or systemic treatments.
According to a study published by "Journal of food biochemistry", the leaves of Solanum nigrum L. are used to improve impairments in memory, redox imbalance, and altered critical enzyme activities. In a study using a Drosophila melanogaster model, flies were treated with AlCl3 alone or in combination with the leaves in their diets for 7 days. The results showed that the leaves ameliorated impaired behavioral physiology, antioxidant status, and enzyme activities observed in Al-treated flies. These leafy vegetables serve as sources of polyphenols and alkaloids that can ameliorate impaired learning and memory. The protective effects of the sample against Al-induced toxicity are associated with its antioxidant, antimonoaminergic, and anticholinergic properties.
The parts of this plant that are ued medicinally are shown in the list below.
- leaves
- berries
- fruit
- root
- stem-bark
What traditional systems uses this plant?
This plant, Solanum nigrum, has been utilized throughout history in diverse medical traditions such as Ayurveda and Egyptian traditional medicine to treat various ailments. In the Ayurvedic system, the plant is frequently employed to manage inflammatory conditions and digestive issues. Ancient Egyptian practitioners also relied on its properties to address specific health concerns within their unique healing frameworks. These historical uses often focused on the plant's potential to regulate bodily functions and mitigate pain. Consequently, the species has maintained a significant role in the ethnobotanical history of many different cultures.
According to a study published by "Cellular and molecular biology (Noisy-le-Grand, France)", Solanum nigrum is one of the major traditional medicinal plants widely used in Ayurveda for the treatment of various diseases. This study investigated the anticancer effect of Solanum nigrum water extract (SNWE) against 2 breast cancer cell lines, specifically MCF-7 and triple-negative MDA-MB-231. The SNWE significantly induced oxidative stress-mediated apoptotic cell death in a concentration-dependent manner. Real-time PCR results illustrated the upregulation of proapoptotic genes and downregulation of antiapoptotic genes after SNWE treatment in both MCF-7 and MDA-MB-231 cell lines. Immunofluorescence analysis showed increased expressions of apoptotic markers like p53, Caspase3 and BAX by SNWE treatment.
The hystorical systems that uses this plant are shown in the list below.
- Ayurveda
- Egyptian traditional medicine
What are the pharmacological activities of Solanum nigrum?
This plant has diverse pharmacological activities including anti-cancer, anti-inflammatory, anti-oxidant, anti-microbial, and anti-diabetic properties. Its rich concentration of bioactive compounds like alkaloids and polyphenols helps neutralize harmful free radicals in the body. These chemical constituents also demonstrate the ability to inhibit the growth of various pathogenic bacteria and fungi. Furthermore, specific extracts from the plant have shown potential in regulating blood glucose levels and reducing systemic inflammation. Researchers continue to investigate these phytochemicals for their capacity to suppress tumor cell proliferation.
According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", Solanum nigrum demonstrates anti-cancer effects through specific components. The total alkaloid isolated from Solanum nigrum interferes with the structure and function of tumor cell membranes and disturbs the synthesis of DNA and RNA. This alkaloid also changes the cell cycle distribution to inhibit tumor cells. Furthermore, the glycoprotein (150 x 10(3)) isolated from Solanum nigrum shows anti-cancer abilities. This glycoprotein works by blocking the anti-apoptotic pathway of NF-kappaB, activating caspase cascades reaction, and increasing nitric oxide production.
The primary pharmacological activities of this plant are shown in the list below.
- anti-cancer
- anti-inflammatory
- anti-oxidant
- anti-microbial
- anti-diabetic
What medicinal compounds this plant contains?
This plant contains several medicinal glycoalkaloids, specifically solamargine, solaniigrosides C-H, β-solanine, and γ2-solamarine. These chemical constituents are primarily responsible for the various biological activities observed in the species. The presence of solaniigrosides C-H and β-solanine contributes to the plant's diverse pharmacological potential. Additionally, the specific alkaloid profile including solamargine and γ2-solamarine influences its medicinal properties. Researchers study these diverse glycoalkaloids to understand their potential applications in therapeutic developments.
According to a study published by "Rapid communications in mass spectrometry : RCM", Solanum nigrum berries contain toxic glycoalkaloids that vary significantly in content and composition. The study utilized a pseudo-MS3 method to trim complex glycosides into 5 types of aglycone ions for analysis. A compact method was developed using only 15 MRM transitions to facilitate high-throughput screening of these diverse glycoalkaloids. Using solamargine as the sole available standard, the method achieved an accuracy of 99.7-101.3%. The intra- and inter-day precision were 2.5-5.0% and 8.0-9.2%, respectively. Furthermore, the lower limit of detection and quantification were 3.1 and 10.2 ng/mL with a 1 uL injection volume.
The primary medicinal compounds of this plant are shown in the list below.
- solamargine
- solaniGROsides C-H
- β-Solanine
- γ2-Solamargine
- glycoalkaloids
What health conditions is this plant used for?
This plant is used for treating cancer, inflammation, diabetes mellitus, gastric ulcers, and various microbial infections. Its phytochemical properties allow it to inhibit the growth of malignant cells in certain types of cancer studies. The plant also contains bioactive compounds that help reduce systemic inflammation and regulate blood glucose levels in patients with diabetes mellitus. Additionally, extracts from the leaves and fruits are applied to soothe gastric ulcers and combat harmful microbial infections. These diverse therapeutic applications make it a significant subject in ethnopharmacology.
According to a study published by "Frontiers in pharmacology", Solanum nigrum is an effective medicinal plant used to evaluate antitumo r activity against breast cancer. When loaded into nanosponge systems, the plant extract demonstrated a cytotoxicity of 22.67 ± 6.11 μg/mL and induced DNA damage. Flow cytometry analysis reported that the encapsulated extract promoted cell cycle arrest at sub-G1 at a rate of 9.51%. In vivo analysis of the nanosponge treated mice showed effectiveness through a reduction in tumor weight and 85% survival chances.
The main health conditions this plant is used for are shown in the list below.
- cancer
- inflammation
- gastric ulcer
- microbial infections
- oxidative stress
What are the herbal preparations of this plant?
This plant is Solanum nigrum, which is utilized in various medicinal herbal preparations including 50% ethanol extract, Guan Chang Fu Fang, Livogrit, Solanum nigrum L. extraction, and aqueous extracts. These diverse formulations are developed to leverage the plant's bioactive compounds for different therapeutic applications. Research often focuses on the efficacy of the 50% ethanol extract and aqueous extracts in isolation or as part of complex mixtures. Specific traditional and modern formulas like Guan Chang Fu Fang and Livogrit demonstrate how the plant is integrated into structured medicinal protocols. The process of Solanum nigrum L. extraction ensures that the specific phytochemicals required for these remedies are concentrated effectively.
According to a study published by "Oncology letters", Solanum nigrum L. is one of the three medicinal plants used to extract the natural compound Guan Chang Fu Fang (GCFF). This compound has demonstrated clinical efficacy in the treatment of colon cancer. When combined with 5-FU, GCFF exhibits a significant effect on 5-FU-associated cytotoxicity within the LoVo cell line across a broad dose-inhibition range of 5-95%. The effect was noted to be particularly significant in the lower concentrations. After 48 h, GCFF significantly suppressed the expression levels of the chemotherapeutic agent resistance-associated genes within the colon cancer cells.
The main herbal preparations of this plant are shown in the list below.
- 50% ethanol extract
- Guan Chang Fu Fang
- Livogrit
- Solanum nigrum L. extraction
- aqueous extracts
What side effects this plant can have?
This plant can cause severe health issues including acute interstitial nephritis, anticholinergic symptoms, cytotoxicity, growth depression, and death. The presence of toxic alkaloids can trigger anticholinergic symptoms such as blurred vision, dry mouth, and rapid heart rate. These substances also induce cytotoxicity, which involves direct damage to cellular structures and organ functions. Furthermore, the toxins may lead to acute interstitial nephritis, a serious inflammation of the kidney tubules. In cases of severe poisoning, these physiological disruptions can result in significant growth depression or even death.
According to a study published by "Kidney research and clinical practice", Solanum nigrum is a medicinal plant member of the Solanaceae family that has been traditionally used to treat ailments such as pain, inflammation, and fever. Despite these uses, it has been reported to have a toxic effect resulting in anticholinergic symptoms. This study reports the first case of biopsy-confirmed acute interstitial nephritis following the ingestion of Solanum nigrum. The patient involved in this single reported case was successfully treated using corticosteroid therapy.
The main side effects this plant can have are shown in the list below.
- acute interstitial nephritis
- anticholinergic symptoms
- cytotoxicity
- death
- growth depression
What herbs are paired with Solanum nigrum?
This plant, commonly known as black nightshade, pairs best with culinary or medicinal herbs like basil, parsley, and mint to balance its bitter profile.
When used in cooking, the addition of woody herbs such as rosemary or thyme can help mask the natural astringency of the berries. In traditional herbal preparations, combining it with lemon balm or chamomile may help soothe the digestive system. These pairings are often chosen to harmonize the plant's intense flavors with more aromatic or calming botanical properties.
Careful consideration of these combinations ensures that the unique chemical profile of the plant is complemented rather than overwhelmed.