Antibacterial Activity of Extracts from Some Bryophytes


The antimicrobial activity of aqueous and ethanolic extracts of 11 Bryophyta species and 9 Marchantiophyta species collected in Latvia was tested against Staphylococcus aureus, Escherichia coli and Bacillus cereus. The extract of Lophocolea heterophylla inhibited the growth of B. cereus, but none of the tested extracts inhibited the growth of E. coli. 70% of bryophyte species demonstrated certain activity in relation to S. aureus. In general, 73% of ethanolic extracts and 39% of aqueous extracts exhibited antibacterial activity against S. aureus. The highest degree of antibacterial activity against S. aureus was shown by the ethanolic extract of Dicranum scoparium and aqueous extracts of Atrichum undulatum and Rhytidiadelphus squarrosus. The bactericidal action was not ascertained. For the first time antimicrobial activity has been proved for three moss species—Eurhynchium angustirete, Rhytidiadelphus squarrosus and Rhodobryum roseum, and for two liverwort species Frullania dilatata and Lophocolea heterophylla. Qualitative and quantitative differences of plant extracts were evaluated by FT-IR spectra.

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V. Nikolajeva, L. Liepina, Z. Petrina, G. Krumina, M. Grube and I. Muiznieks, "Antibacterial Activity of Extracts from Some Bryophytes," Advances in Microbiology, Vol. 2 No. 3, 2012, pp. 345-353. doi: 10.4236/aim.2012.23042.

Conflicts of Interest

The authors declare no conflicts of interest.


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