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.
|Published (Last):||3 December 2005|
|PDF File Size:||13.46 Mb|
|ePub File Size:||13.94 Mb|
|Price:||Free* [*Free Regsitration Required]|
Banana Snapping in Innisfail: Therefore, further studies could include jouurnal more antibiotic screenings with larger variety bryophytes, against a huge variety of potential bacterial species.
There was a problem providing the content you requested
Principles of Biochemistry 4th Edition. Mark Douglas Russell 1. Atricum selwynii and Sphagnum palustre have also shown activity against a variety of Gram-positive and Gram-negative bacterial species 1,2, Mosses and liverworts usually have leaves with a thickness of one cell, except along the costa and the alar cells, which facilitate diffusion Therefore, potential differences in seasonal collection, locality, or extraction antimiceobial experimental procedure may have been factors that manipulated the results.
Bryophytes typically grow in close association with each other.
Antibacterial Activity of Extracts from Some Bryophytes
International Journal of Antimicrobial Agents, Bryophytes in this region are herbaceous plants that grow closely packed together in mats or cushions on rocks, soil, or as epiphytes on the trunks and leaves of forest antimcirobial The sporophyte typically brjophytes of an unbranched seta, and a single terminal sporangium However, unlike vascular plants, water and minerals are absorbed chiefly by the thin leaves of the plant as the rain washes through the moss, not from roots Hundreds of medicinal bryophytes have been identified and classified in ethnobotanical literature as potential antimicrobial agents 6,8,9, Table 4 Known active compounds extracted with solvents: Plant Products as Antimicrobial Agents.
The effectiveness of liverworts and mosses, solely against Gram-positive bacteria supports the notion that they are more vulnerable Ellis for providing expertise and laughter throughout this project and field collections, and to Amy Singleton-Polster for her peer-criticisms. The disc diffusion assay technique was used to evaluate antimicrobial activity. However, few studies have been concerned with an in-depth analysis of the antimicrobial activity and efficacy of phytochemicals in different species of bryophytes from South Western British Columbia The homogenous surface liquid of the crude ethanolic extracts was used to impregnate the diffusion discs with antibiotic activity.
Bryophytes represent the second largest group of green land plants after angiosperms, and are taxonomically placed between algae and pteridophytes 6. This suggests that detectable antibacterial compounds are present in most taxa of liverworts The amount of lost activity is dependent on the compounds extracted and the length of drying iournal.
Antiviral screening of British Columbian medicinal plants. Alcoholic extracts from Conocephalum conicum, Sphagnum palustre, Hylocomium splendens and Atricum selwynii showed no visible activity against any Gram-positive or Gram-negative bacteria.
A John Flynn Scholarship. Physiologically, Gram-negative bacteria have an outer bryophytfs while the Gram-positive bacteria only have peptidoglycan layer Antibiotic Activity of Bryophytes.
Lichenol Rev Bryol Pure and Applied Chemistry, 79 4: Therefore, the whole organism was collected wherever possible. Further investigation would be required to determine if a polyacetylene, sterol or propolis found in the mosses, and liverworts are responsible to the antibiotic nature of the species.
Furthermore, I would like to thank the University of British Columbia for providing me with resources and facilities to conduct my experiments and research.
In addition, none of the mosses showed any antibiotic activity when methanolic extractions were used.
Any part of the antimicfobial may contain active components. Fourteen crude methanolic and ethanolic extracts of bryophytes from South Western British Columbia were screened journla antibiotic activity against three bacterial strains. The onlyexception was Polytrichastrum alpinum, which showedindeterminate antibiotic response. None of the 14 species of bryophytes extracts, from either of the alcoholic extractions, showed any visible activity againstGram-negative Escherichia coli or Klebsiella pneumoniae.
Presently, over new compounds have been isolated with potential antibiotic qualities6.
The average inhibition zone in ethanolic extracts ranged from 1. Antibiotic effects of Lunularia cruciata Bryophyta extract.
MSJA | Medical Student Journal of Australia
All extractions were performed with methanol. Furthermore, Asakawa suggests that oil bodies are easily extracted with alcoholic extraction methods, while the other classes of bryophytes lack oil bodies, making antibiotic activity more difficult extract.
Journal of Natural Products, Before journa all plant material collected was washed with distilled water to remove any adhering soil or extraneous material. This may have affected our results.