Plants of Commercial Importance in Lesotho: Ethnobotanical and Pharmacological Insights
Abstract
:1. Introduction
2. Materials and Methods
3. Results
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Plant Species (with Common and Vernacular Names in Brackets) | Ethnobotanical Uses | Plant Part Used | Pharmacological Activity (Antimicrobial, Anti-Inflammatory) | Phytochemical Composition | Toxicity | Conservation Statuses | Commercial Products Developed from the Plant | References |
---|---|---|---|---|---|---|---|---|
* # Agave americana (Century plant, Lekhala-le-leputsoa) | Skin problems (herpes sores/ulcers), sore feet, bruises, purgative, rheumatism, syphilis | Leaves | Antimicrobial activity: Active against Bacillus subtilis, Staphyllococcus aureus, Salmonella choleraesuis Anti-inflammatory activity: Oedema assay: 81% inhibition at 6 mg/ear | Flavonoids, saponins, glycosides, triterpenes, steroids, glycosides | Acute irritant contact dermatitis, also toxic to freshwater snail | Not Evaluated | Cosmetic products and herbal medicine | [11,12,13,14,15,16,17,18,19] |
Aloe ferox (Bitter aloe, Lekhala-la-Quthing) | Skin problems (eczema, herpes, shingles, burns sores/ulcers), hair treatment, circulatory, digestive (laxative), eye problems, degenerative (diabetes, high blood pressure, arthritis, diabetes) STIs, sinusitis, bile problems | Leaves | Antimicrobial activity: Noteworthy activity against Neisseria gonorrhoea, Candida albicans MIC assay against C. albicans (>1.00 mg/mL), Gardnerella vaginalis (>1.00 mg/mL), N. gonorrhoeae (0.50 mg/mL) Oligella ureolytica (1.00 mg/mL), T. vaginalis (>1.00 mg/mL), Ureaplasma urealyticum (>1.00 mg/mL) Anti-inflammatory activity: Oedema assay: 78.2% inhibition at 400 mg/kg; 72.1% at 100 mg/kg | Aloin, anthraquinones, glycoproteins, Phenols, alkaloids, quinones, anthrones, chromones, proanthocyanidins, pyrones, flavonoids, saponins, fatty acids, phytosterols, pyrimidines, alkanes | Generally considered safe. However, causes dose-dependent apoptosis involving mitochondria in Jurkat cells | Least Concern | Cosmetic products | [11,13,16,20,21,22,23,24,25,26,27,28,29,30,31,32,33] |
Artemisia afra (African wormwood, Lengana) | Respiratory ailments (coughs, colds, influenza, sore throats), digestive (intestinal worms, stomach complaints, worms, constipation), reproductive (menstrual chill, childbirth), earache, malaria, loss of appetite, headache, toothache, gout | Leaves | MIC assay against Mycobacterium smegmatis (1.60 mg/mL), M. tuberculosis (not active); M. aurum (MIC = 1560 µg/mL); Klebsiella pneumoniae (0.52 mg/mL), Moraxella catarrhalis (2.00 mg/mL), Pseudomonas aeruginosa (activity not noteworthy), Staphylococcus aureus (0.25 mg/mL) (Antibacterial activities (MIC) against Escherichia coli, Klebsiella. pneumoniae, Staphylococcus aureus, Mycobacterium. aurum Bacillus cereus; Antibacterial activities (MIC & disc diffusion assay) against Bacillus subtilis,; anthelmintic activity against Caenorhabditis elegans (McGaw, 2000); anti-amoebic activity (anthelmintic assay) against Entamoeba histolytica; Antimicrobial activities (MIC) against S. aureus, S. epidermidis, Pseudomonas aeruginosa, Enterobacter cloacae, K. pneumonia, Escherichia coli; Antibacterial activity (Disc-diffusion assay & MIC) against Staphylococcus aureus, Bacillus subtilis; antibacterial activity (MIC) against S. epidermis | Acetylenes, camphor, coumarins, flavonoids, lactones, polyacetylenes, tannins, terpenoids, thujone | Non-toxic, causes no apparent organ damage, and in high doses may have a hepatoprotective effect in mice; however, some kidney functions may be compromised at high dosages of the extract | Least Concern | Herbal teas and remedies | [13,23,25,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50] |
* Cannabis sativa (Hemp, Marijoana, Matekoane) | Treatment of pain, rheumatism, asthma, glaucoma, nausea, multiple sclerosis, depression, cancer, lack of appetite associated with HIV/AIDS, constipation, fatigue, rheumatism, malaria, wound healing, gastrointestinal diseases, insomnia, pain, snake bite, anodyne, sedative, tonic and narcotic | Leaves, seeds | Antibacterial properties against Escherichia coli; anti-malarial and anti-leishmanial effects; preclinical and clinical studies for anticonvulsant effects | Cannabinoids (e.g., tetrahydrocannabinol- THC, cannabidiol -CBD, cannabichromene –CBC, cannabigerol -CBG), terpenes, flavonoids, alkaloids | Smoke contains mutagenic carcinogenic and teratogenic substances. Acute toxicity, particularly when inhaled e.g., LD50 values for THC are 43 mg/kg for mouse, 455 mg/kg for rat; in vitro and in vivo preclinical findings demonstrate neuroprotection against amyloid beta (Aβ) toxicity and neuronal death; THC has bronchodilation and hypotensive effects, and high doses can cause anxiety, panic fears, tremors, psychotic aggressiveness, nausea, vomiting and tachycardia | Not Evaluated | Herbal medicine, cosmetic products | [25,33,51,52,53] |
* Eucalyptus rubida (Candlebark, ribbon gum or white gum, Boloukomo) | Flu, colds, asthma, nasal congestion | Leaves | TB: MIC assay against M. smegmatis (activity not noteworthy); Other RTIs: MIC assay against K. pneumoniae (0.67 mg/mL), M. catarrhalis (0.83 mg/mL), S. aureus (0.13 mg/mL) | Coumarins, flavonoids, terpenoids | Essential oils toxic to Haematobia irritans | Not Evaluated | Extraction of oils for therapeutic purposes (Eucalyptus oil) | [54,55,56,57] |
Helichrysum odoratissimum (Most fragrant helichrysum, Phefo) | Coughs, flu, colds, headache, menstrual pains, backache, emetic for excessive bile, abdominal pains, heartburn | Shoots | MIC assay against Mycobacterium aurum (0.68 mg/mL), M. smegmatis (0.50 mg/mL), M. tuberculosis (0.50 mg/mL and 0.30 mg/mL); MIC assay against K. pneumoniae (2.0 mg/mL), M. catarrhalis (0.25 mg/mL), P. aeruginosa (0.5 mg/mL), S. aureus (0.125 mg/mL) anti-inflammatory activity of 5,6-dihydroxy-3,7,8-trimethoxyflavone and 3′,4′,3,5-tetrahydroxy-7- methoxyflavone | Flavonoids, helichrysetin, pyrenes terpenoids | No toxicity using sulforhodamine B assay, with 17.5% T/C of Graham cells, 48.2% T/C of SF-268 cells, 7.4% T/C of MCF-7 breast cancer cells | Least Concern | Herbal teas | [11,13,21,23,58,59,60,61,62,63,64] |
Hermannia depressa (doll’s roses, Selenjane) | Stomach ache, nausea, diarrhoea, heartburn, colic, improves appetite in pregnant women, coughs, cancer, wounds, bruises | MIC assay against Bacillus subtilis (1.56 mg/mL in leaf, 0.39 mg/mL in stem, 0.195 mg/mL in root); E. coli (0.78 mg/mL in leaf, 3.125 mg/mL in stem, 0.78 mg/mL in root); K. pneumoniae (0.78 mg/mL in leaf, 3.125 mg/mL in stem, 0.78 in root), S. aureus (0.78 mg/mL in leaf and stem, 3.125 mg/mL in root); MIC assay against M. tuberculosis (0.78 mg/mL) | Tannins, saponins, phenols | No significant toxicity in bovine cells using brine shrimp lethality test as well as MTT and LDH cytotoxicity assays | Least Concern | Herbal mixtures | [65,66,67] | |
Hypoxis hemerocallidea, African potato (Moli) | Dizziness, cancers, inflammations, mental disorders, human immunodeficiency virus (HIV), bladder disorders, burns, prostrate problems, testicular tumours, urinary infections, headache | Corm | Antimicrobial activity (MIC) against Candida albicans, Ureaplasma urealyticum, Gardnerella vaginalis, Trichomonas vaginalis, Neisseria gonorrhoeae (Naidoo et al., 2013); antinociceptive (using hot plate, acetic acid analgestic test methods in mice), MIC assay against M. smegmatis (activity not noteworthy), MIC assay against K. pneumoniae (0.40 mg/mL in corm), M. catarrhalis (activity not noteworthy), S. aureus (0.40 mg/mL in leaf and corm); anti-inflammatory and antidiabetic activities Anti-inflammatory activity: Cyclooxygenase assay: 48% COX inhibition; 98%COX-1 and COX-2 74% inhibition at 250 µg/ml in corm, and 78% COX-1 and 59% COX-2 in leaf | Terpenoids, saponins, glycosides, tannins, phenolic compounds, terpenes, flavonoids, phytosterols, sterols, sterolins | Low toxicity in mice at low doses, APE < 1600 mg/kg; hypoxosides nontoxic to parental MCF-10A cells No genotoxicity using the neutral red uptake (NRU) assay | Least Concern | Traditional herbal mixtures | [68,69,70,71,72,73,74,75] |
Ledebouria cooperi (Cooper’s African hyacinth, Leptjetlane) | Digestive (constipation and diarrhoea in children), phlegm, reproductive, skin problems, cleanses blood, soothing medicine for women during pregnancy | Bulb | Not yet evaluated | Flavonoids, terpenoids | Highly poisonous, capable of inducing a comatose state in children, as well as a number of symptoms associated with cardiac glycoside activity | Least Concern | Herbal mixtures | [21,59,60,76] |
Mentha spp. (M. aquatica, M. longifolia (Mint, Koena) | Beverage (tea); medicinal (circulatory, respiratory, reproductive (virility in men), sore joints | Leaves | MIC assay against M. aurum (2.0 mg/mL), M. smegmatis (0.50 mg/mL), M. tuberculosis (1.00 mg/mL), K. pneumoniae (31.25 µm/ml and 1 mg/mL), M. catarrhalis (4.00 mg/mL), P. aeruginosa (2.00 mg/mL), S. aureus (15.62 µm/mL, 1.00 mg/mL); Disc diffusion method against K. pneumoniae (14 mm inhibition zone), P. aeruginosa (no inhibition), S. aureus (13 mm inhibition zone) Anti-inflammatory effect (300 µg/cm) provoked oedema reductions ranging from 21 to 27% Decreased TNFα pro-inflammatory cytokine expression | Alkaloids, flavonoids, glycosides, phenols, Tannins, terpenoids | Acute toxicity using the Microtox Acute Toxicity Test revealed 20% toxicity for human health Moderately toxic for oral medication in rats, with LD50 of 470 mg/kg; marked cytotoxic activity against MCF-7 cells using brine shrimp cytotoxicity assay | Least Concern | Herbal teas | [77,78,79,80,81] |
Merxmuellera spp. (Broom grass, mountain wire, Moseha) | Crafts (brooms, baskets, mats, hats) | Shoots | Traditional Basotho hats, mats, brooms, baskets, beer strainers, milk whisks and ropes. The raw material is also exported | [22,82,83] | ||||
*# Opuntia ficus-indica (Sweet prickle pear, Indian fig, Torofeie) | Food (fruits); digestive (constipation), toothache, piles, musculoskeletal | Leaves | Ripe fruits are an excellent source of minerals (especially calcium and magnesium) as well as vitamin C | Sterols, carotenes, vitamins | Cladodes are poisonous to livestock when consumed in large quantities | Not Evaluated | Beverages (e.g., fruit juices), cosmetic products | [84,85] |
Pelargonium sidoides (African geranium, Khoara) | Respiratory tract infections (TB, bronchitis, pneumonia), digestive, (diarrhoea, constipation, worms, dysentery) reproductive (heartburn in pregnant women) | Antimicrobial activity (MIC) against Bacillus cereus, Staphylococcus epidermidis, S. aureus, Micrococcus kristinae, Streptococcus pyogenes, Salmonella pooni, Pseudomonas aeruginosa, Klebsiella pneumonae; Antimicrobial activity (MIC) against Haemophilus influenza, Moraxella catarrhalis, Streptococcus pneumoniae. Antifungal activity against Aspergillus niger, Fusarium oxysporum, Rhizopus stolonifer; Antibacterial activities (MIC) against Staphylococcus aureus, Streptococcus pneumonia, Escherichia coli, Klebsiella pneumonia, Proteus mirabilis, Pseudomonas aeruginosa; EPsR 7630 assessed in acute bacterial bronchitis model in rats, tracheal lesions significantly reduced at doses of 30 and 60 mg/kg. | Coumarins, flavonoids, phenolic acids, tannins, terpenoids | The half maximal cytotoxic concentration of EPs 7630 (CC50) of 557 mg/mL; EPss 7630, did not cause obvious toxic effects in mice (lungs, liver, spleen, kidneys), | Least Concern | Herbal mixtures | [86,87,88,89,90,91,92] | |
*# Rosa rubiginosa (Rosehip, ‘Morobobei) | Scars, burns | Fruits | High values of DPPH inhibition confirm antioxidant activity | Fat-soluble vitamins (particularly vitamin C), b-carotene, phenols, fatty acids, lipids, sterols, a high content of transretinoic acid | Skin irritation | Not Evaluated | Herbal teas and fruit juices | [93,94,95] |
* Urtica urens (small needle, Bobatsi) | Food (young leaves); medicinal (degenerative-diabetes, STIs, snake bite, immune booster), wounds, asthma, stomach ulcers, heartburn, cleansing bladder | Leaves | Antimicrobial activity: No activity against E. coli, P. aeruginosa, S. aureus, S. pyogenes, C. albicans; Anti-inflammatory activity: Oedema assay: 41.5% inhibition at 300 mg/kg | Alkaloids, glycosides, saponins, tannins | Oedema assay: 41.5% inhibition at 300 mg/kg | Not Evaluated | Cosmetic and herbal juices | [11,21,96,97] |
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Seleteng-Kose, L.E.; Likoetla, P.; Motjotji, L. Plants of Commercial Importance in Lesotho: Ethnobotanical and Pharmacological Insights. Cosmetics 2023, 10, 28. https://doi.org/10.3390/cosmetics10010028
Seleteng-Kose LE, Likoetla P, Motjotji L. Plants of Commercial Importance in Lesotho: Ethnobotanical and Pharmacological Insights. Cosmetics. 2023; 10(1):28. https://doi.org/10.3390/cosmetics10010028
Chicago/Turabian StyleSeleteng-Kose, Lerato Esther, Puseletso Likoetla, and Lisebo Motjotji. 2023. "Plants of Commercial Importance in Lesotho: Ethnobotanical and Pharmacological Insights" Cosmetics 10, no. 1: 28. https://doi.org/10.3390/cosmetics10010028
APA StyleSeleteng-Kose, L. E., Likoetla, P., & Motjotji, L. (2023). Plants of Commercial Importance in Lesotho: Ethnobotanical and Pharmacological Insights. Cosmetics, 10(1), 28. https://doi.org/10.3390/cosmetics10010028