ANTIMICROBIAL BRYOPHYTES JOURNAL PDF
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 July 2006|
|PDF File Size:||3.61 Mb|
|ePub File Size:||4.35 Mb|
|Price:||Free* [*Free Regsitration Required]|
The amount of lost activity is dependent on the compounds extracted and the length of drying time. Therefore, a plethora of different bryophyte species have evolved in this regions forests and wetlands The occurrence of antibiotic substances appears to be more frequent in hepatics. Bacterial sensitivities Gram-positive bacteria, B.
Six mm sterile filter paper discs were impregnated with extract and placed on seeded agar. Plant Products as Antimicrobial Agents. Therefore, further studies could include performing more antibiotic screenings with larger variety bryophytes, against a huge variety of potential bacterial species. Lichenol Rev Bryol Many of these species are prevalent in British Columbia.
Native American food and medicinal plants 7. Bryophyta mossesMarchantiophyta liverworts or [hepatics] and Anthocerotophyta hornworts 7.
Gm -ve Escherichia coli. Table 3 Antibiotic activity in disc diffusion assays of bryophytes from South Western British Columbia.
Animal and human studies would also include infection prevent and treatment. However, there have been few studies to screen and confirm the medicinal potential of bryophytes in North Americans for antibiotic activity. All extractions were performed with ethanol. Further Directions It is apparent that a variety of studies are needed to explore the established data.
Medical Student Journal of Australia. gryophytes
Antibacterial Activity of Extracts from Some Bryophytes
A thorough overview of the fundamentals of Botany. A failure to do so could result in an inability to retrieve valuable information, and incorrectly dismissing potentially beneficial species. All extract activity was standardized using comparable amounts of dried plant material and quantities of alcoholic extraction medium. Antibiotic activity Recent studies indicate evidence of antibiotic properties of some bryophyte species, incongruent with my results. Since different populations of the same species may exhibit different antimicrobial activity, the time and place of collection, and habitat were recorded Table 1.
Introduction T he occurrence of antibiotic substances in bryophytes has been well documented by botanists and microbiologists 1,2. Eating for Two – The common misconception in pregnancy. The effectiveness of liverworts and mosses, solely against Gram-positive bacteria supports the notion that they are more vulnerable The onlyexception was Polytrichastrum alpinum, which showedindeterminate antibiotic response. All samples were preliminarily washed to remove contaminants.
Bryophytes represent the second largest group of green land plants after angiosperms, and are taxonomically placed between journa, and pteridophytes 6. 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.
This suggests that detectable antimucrobial compounds are present in most taxa of liverworts One and half grams of the ground material were extracted in 25ml of methanol over 24 hours.
The Bryologist 82 antimicronial In addition, none of the mosses showed any antibiotic activity when methanolic extractions were used. According to the literature, all of these species should have shown some antibiotic activity against B.
Plants of Coastal British Columbia. Pure and Applied Chemistry, 79 4: For example, Bartramia pomiformis, Leucolepsis acanthoneuron, Frullania nisquallensis showed antibiotic activity only using ethanolic extraction.
All the reference antibiotics showed dramatic activity against all the Gram-positive and Gram-negative bacteria. Antibiotic screening of medicinal plants of British Columbian native peoples. 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 trees These values could then be compared to the standard reference antibiotics for the development of commercial drug products.
There was a problem providing the content you requested
In our study, none of these species displayed any activity. Journal of Botanical Laboratory No. No related media found journsl this article. Bryophytds, over new compounds have been isolated with potential antibiotic qualities6. Consequently, bryophytes remain small and flourish in places where there is an abundant water supply The bacteria used were Bacillus subtilis, Escherichia coli, and Klebsiella pneumoniae.
They lack roots and attach to their environment with rhizoids Occurrence of antimicrobial substances in chlorophyllose plants growing in Florida.
The sporophyte typically consists of an unbranched seta, and a single terminal sporangium It is apparent that a variety of studies are needed to explore the established data.
MSJA | Medical Student Journal of Australia
Any part of the plant journwl contain active components. The collections took place from October to November A John Flynn Scholarship. Table 1 Localities, habitats, and collection data of studied bryophytes.
The bryophytes group consists of three subgroups: