Aquatic plants as potential sources of antimicrobial compounds active against bovine mastitis pathogens
| Autor: | Rossi, CC, Aguilar, AP, Diaz, MAN, Ribon, AdOB |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
biology
medicine.disease biology.organism_classification medicine.disease_cause Antimicrobial Applied Microbiology and Biotechnology Hydrocleys nymphoides Mastitis Microbiology Minimum inhibitory concentration Streptococcus agalactiae Aquatic plant Staphylococcus aureus Streptococcus agalactiae aquatic plants Salvinia auriculata Hydrocleys nymphoides antimicrobial activity Genetics medicine Nymphoides Salvinia auriculata Food science Agronomy and Crop Science Molecular Biology Biotechnology |
| Zdroj: | African Journal of Biotechnology; Vol 10, No 41 (2011); 8023-8030 |
| ISSN: | 1684-5315 |
| Popis: | Resistance of pathogens to common veterinary antibiotics hampers mastitis treatment and motivates the discovery of new antimicrobials. In this study, extracts from two aquatic plants, Salvinia auriculata and Hydrocleys nymphoides, were assayed against bovine mastitis pathogens. Selected parts of plants were extracted with different solvents. The extracts showed activity only against the Gram-positive strains tested and the largest inhibition zones were seen for hexane extracts. The minimum inhibitory concentration values ranged from 0.2 to 1.0 mg/ml. Growth of Streptococcus agalactiae in the presence of different extracts with concentrations below MIC reduced the number of CFU/ml by more than 90%. Sub-MIC concentrations of the hexane extracts prepared from roots of S. auriculata inhibited approximately 50% of biofilm formation. Greater reduction was achieved for ethanol extract prepared from leaves of H. nymphoides. We concluded that these aquatic plants are potential sources for the investigation of new antimicrobial compounds.Key words: Staphylococcus aureus, Streptococcus agalactiae, aquatic plants, Salvinia auriculata, Hydrocleys nymphoides, antimicrobial activity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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