Categories : Science

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.

Author: Shajas Gugore
Country: Namibia
Language: English (Spanish)
Genre: Medical
Published (Last): 4 November 2011
Pages: 271
PDF File Size: 9.9 Mb
ePub File Size: 10.99 Mb
ISBN: 959-4-34900-738-1
Downloads: 37437
Price: Free* [*Free Regsitration Required]
Uploader: Taujinn

Occurrence of antimicrobial substances in chlorophyllose plants growing in Florida. The botanical names of the plants tested, habitat and collection date are listed in Table 1. Journal of Ethnopharmacology All bryophyted species showing antibiotic activity were common among ethanolic and methanolic extracts. Alcoholic extracts from Conocephalum conicum, Sphagnum palustre, Hylocomium splendens and Atricum selwynii showed no visible activity against any Gram-positive or Gram-negative bacteria.

There was a problem providing the content you requested

This joufnal demonstrates the importance of using a multitude of extraction compounds and methods to isolate antibiotic compounds. Table 4 Known active compounds extracted with solvents: 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.

A thorough overview of the fundamentals of Botany. Table 2 Antibiotic activity in disc diffusion assays of bryophytes from South Western British Columbia and reference antibiotics. Once significant antibiotic activities have been isolated, MIC and MBC would be performed to determine antibiotic efficacy.

Table 3 Antibiotic activity in disc diffusion assays of bryophytes from South Western British Columbia. However, there have been few studies to screen and confirm the medicinal potential of bryophytes in North Americans for antibiotic activity.

In addition, bryophytss the antibiotic compounds by Nuclear Magnetic Resonance and Mass Spectrophotometry allows for examination of compound structure.


Antibacterial Activity of Extracts from Some Bryophytes

They lack roots and attach to their environment with rhizoids These values are approximately one third of the inhibition of reference antibiotics. Lastly, Hylocomium splendens has shown antibiotic activity against nine Gram-positive bacteria Therefore, further studies will be needed explore the factors affecting bryophyte activity. The collections took place from October to November Atricum selwynii and Sphagnum palustre have also shown activity against a variety of Gram-positive and Gram-negative bacterial species 1,2, Should boys receive the Gardasil Vaccination?

The application ranged from topical applications, to prevent infection, to internal consumption, facilitating relief from nausea 5.

Therefore, the whole organism was collected wherever possible. Historically, a large number of medicinal plants were discovered and used by the aboriginal people to treat illnesses 4. Eating for Two – The common misconception in pregnancy. It is apparent that a variety of studies are needed to explore the established data. Average precipitation in Vancouver. Lunularia cruciata also demonstrated the most significant antibiotic activity of all the bryophytes tested.

Occurance of antibiotic activity in Conocephalum conicum, Mnium umdulatum and Leptodictyum riparium. Medical Student Journal of Australia. According to the literature, all of these species should have shown some antibiotic activity against B. Furthermore, this also suggests that one antibiotic compound may be responsible for the antibacterial qualities of a genus or species.

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. The cellular oil bodies contain vast array of lipophilic antimicrpbial, aromatic compounds, and acetogenins which may be responsible for the extraordinary array of bioactivities and medicinal properties Gm -ve Escherichia coli. Table 4 lists some of the known compounds which have been extracted from methanolic and ethanolic extracts.


Plants of Coastal British Columbia.

Mosses and liverworts usually have leaves with a thickness of one cell, except along the costa and the alar cells, which facilitate diffusion 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.

Furthermore, bryophytes utilize the sporangium for reproduction via sporulation but they neither flower nor produce seeds Any part of the plant may contain active components.

This may have affected our results. Antimicrobial, rbyophytes healing and antioxidant activity of Plagiochasma appendiculatum Lehm. The average inhibition zone in ethanolic extracts ranged from 1.

The bolded compounds are partitioned bryophytee by the particular solvent. A failure to do so could result in an inability to retrieve valuable information, and incorrectly dismissing potentially beneficial species.

MSJA | Medical Student Journal of Australia

For example, Castaldo-Cobianchi showed high antibacterial activity of Conocephalum conicum against pathogenic bacteria. Therefore, potential differences in seasonal collection, locality, or extraction and experimental procedure may have been factors that manipulated the results. Lastly, the characteristic that distinguishes bryophytes from tracheophytes, vascular plants, is antimidrobial persistent photosynthetic phase of the life cycle is haploid; gametophyte generation occurs rather than the diploid sporophyte generation kournal All Rights Reserved Contact Us.

Tetrahedron 42 4Cowan M. Preparation of Biologically Active Extracts: Further research will be needed to confirm indications that P. None of the mosses showed any antibiotic activity when extracted with methanol. Ellis from the field in Vancouver, British Columbia.