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Keywords: Bryophytes, Antibacterial, Antiviral, Cucumber, Pathogenic bacteria, bryophytes for antimicrobial activity. Journal of. Medicinal Plants, 7, ). Antibacterial Activity of Extracts from Some Bryophytes. Vizma Nikolajeva1*, Ligita Liepina1, Zaiga Petrina1, Guntra Krumina1. The antimicrobial activity of aqueous and ethanolic extracts of 11 Bryophyta and Naturally Grown Bryophytes,” Journal of Medicinal Plant Research, Vol. 5, No.

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Bryophytes are an exotic and captivating species with a unique combination of distinguishing characteristics. Biologically active compounds from bryophytes. British Columbian bryophytes against Gram-positive and Gram-negative bacteria will be used as evidence for antimicrobial action and efficacy. However, reports of ethnobotanical hryophytes into this plant group are minimal in North America 1.

Bartramia pomiformis, Leucolepsis acanthoneuron, Frullania nisquallensis showed antibiotic activity when ethanolic extractions where used but not when methanolic extracts were used. Atricum selwynii and Sphagnum palustre have also shown activity against a variety of Gram-positive and Gram-negative bacterial species 1,2, Native American food and medicinal plants 7. Medical Student Journal of Australia.

The outer membrane is responsible for protecting the bacteria from an array of different antibiotics, detergents, and enzymes that would normally damage the inner member or peptidoglycan cell wall The effectiveness of liverworts and mosses, solely against Gram-positive bacteria supports the notion that they are more vulnerable All extractions were performed with ethanol.

For example, Bartramia pomiformis, Leucolepsis acanthoneuron, Frullania nisquallensis showed antibiotic activity only using ethanolic extraction. Tetrahedron 42 4Cowan M. All extractions were performed with methanol. International Journal of Antimicrobial Agents, Therefore, the whole organism was collected wherever possible. They were then antimcirobial to dry at room temperature.


Hundreds of medicinal bryophytes have been identified and classified in ethnobotanical literature as potential antimicrobial agents 6,8,9, Screening of potential antimicrobial plants requires crude aqueous or alcohol extracts and fine organic extraction methods. These values could then be compared to the standard reference antibiotics for the development of commercial drug products.

Average precipitation in Vancouver. On the other hand, McCutcheon et al states byrophytes there are few known natural antibiotic compounds with a high antibacterial activity against Gram-negative bacteria, which parallel our results.

Six mm sterilized filter paper discs were then impregnated with the approximately nine drops of the homogenous extract.

Antibacterial Activity of Extracts from Some Bryophytes

Bacterial sensitivities Gram-positive bacteria, B. Journal of Ethnopharmacology Bryophytes represent the second largest group of green land plants after angiosperms, and are taxonomically placed between algae and pteridophytes 6. The bacteria used were Bacillus subtilis, Escherichia coli, and Klebsiella pneumoniae. Plants of Coastal British Columbia.

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All extracts were stored at room temperature. Therefore, homogenous antimicrogial were desired with fresh tissue void of dead or dying material. Journal of Natural Products, Lichenol Rev Bryol Furthermore, I would like to thank the University of British Columbia for providing me with resources and facilities to conduct my experiments and research. This would provide evidence to support current results. National Climatic Data Cenetre. Should boys receive the Gardasil Vaccination?


This bryophytess lead to further studies in synthetic production or chemical development.

All extract activity was standardized using comparable amounts of dried plant material and quantities of alcoholic extraction medium. Bryophyta mossesMarchantiophyta liverworts or [hepatics] and Anthocerotophyta hornworts 7.

The occurrence of antibiotic substances appears to be more frequent in hepatics. Further research will be needed to confirm indications that P. The average inhibition zone in ethanolic extracts ranged from 1. According to the literature, all of these species should have shown some antibiotic activity against B. Table 1 Localities, habitats, and collection data of studied bryophytes. Antiviral screening of British Columbian medicinal plants.

Antibiotics were used as positive controls against the bacteria. The Bryologist 82 2: This would also allow one to test for broad spectrum antibiotic and narrow spectrum antibiotics. Mark Douglas Russell 1. Bryophytes typically grow in close association with each other. C and Cardellina, J. This suggests that detectable antibacterial compounds are present in most taxa of liverworts The onlyexception was Polytrichastrum alpinum, which showedindeterminate antibiotic response.

To explore the bryophytic potential in pharmaceutical applications, a ahtimicrobial and qualitative screening of Brophytes.