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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It is apparent that a variety of studies are needed to explore the established data.

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Alcoholic extracts from Conocephalum conicum, Sphagnum palustre, Hylocomium splendens and Atricum selwynii showed no visible activity against any Gram-positive or Gram-negative bacteria. All the reference antibiotics showed dramatic activity against all the Gram-positive and Gram-negative bacteria.

It is short lived and attaches to the gametophytes for all its nutritional needs. The reference antibiotics showed a range of 5. Six mm sterile filter paper discs were impregnated with extract and placed on seeded agar.

Fourteen crude methanolic and ethanolic extracts of bryophytes from South Western British Columbia were screened for antibiotic activity against three bacterial strains with the disk diffusion method. Physiologically, Gram-negative bacteria have an outer membrane while the Gram-positive bacteria only have peptidoglycan layer Animal and human studies would also include infection prevent and treatment.

However, reports of ethnobotanical research into this plant group are minimal in North America 1. The occurrence of antibiotic substances appears to be more frequent in hepatics. 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 Therefore, the whole organism was collected wherever possible.


Antibacterial Activity of Extracts from Some Bryophytes

This suggests that specific antibacterial compound seffective against the selected bacterial species, tend to be isolated more effectively from liverworts and mosses using ethanol. The cellular oil bodies contain vast array of lipophilic terpenoids, aromatic compounds, and acetogenins which may be responsible for the extraordinary array of bioactivities and medicinal properties The homogenous surface liquid of the crude methanolic extracts was used to impregnate the diffusion discs with antibiotic activity.

Furthermore, bryophytes utilize the sporangium for reproduction via sporulation but they neither flower nor produce seeds In addition, none of the mosses showed any antibiotic activity when methanolic extractions were used.

For example, a potential source of experimental error in the current experiment was failing to use filtration devices or rotoevaporation to isolate our antibiotic compounds. Bryophytes typically grow in close association with each other. Any part of natimicrobial plant may contain active components.

Bryophyta mosses jourhal, Marchantiophyta liverworts or [hepatics] and Anthocerotophyta hornworts 7.

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No related media found for this article. Furthermore, I would like to thank the University of British Columbia for providing me with resources and facilities to conduct my experiments and research.


The bacteria used were Bacillus subtilis, Escherichia coli, and Klebsiella pneumoniae. Lastly, the characteristic that distinguishes bryophytes from tracheophytes, vascular plants, is the qntimicrobial photosynthetic phase of the life cycle is haploid; gametophyte generation occurs rather than the diploid sporophyte generation How did I get here? Bartramia pomiformis, Leucolepsis acanthoneuron, Frullania nisquallensis showed antibiotic activity when ethanolic extractions where used but not when methanolic extracts were used.

This includes thallus, sporophyte, aerial gametophyte and underground portions. Streptomycin appeared most effective against E. Since different populations of the same species may exhibit different antimicrobial activity, the time and place of collection, and habitat were recorded Table 1. The homogenous surface liquid of the crude ethanolic extracts was used to impregnate the diffusion discs with antibiotic activity.


They lack roots and attach to their environment with rhizoids Bryophytes represent the second largest group of green land plants after angiosperms, and are taxonomically placed between algae and pteridophytes 6. To journa the bryophytic potential in pharmaceutical applications, a quantitative and qualitative screening of S.