[Anti-bacterial activity of extracts from fungi collected from mangrove Rhizophora mangle (Rhizophoraceae) roots in Venezuela].
The antibacterial activity of marine fungi extracts was evaluated by a test of efficiency. The fungi were previously inoculated in Malt Agar (EMA) extract with 50% of seawater and growth for 60 days. Triplicate antibiograms were carried out with the extracts. An ANOVA I with a posteriori Duncan test were applied to the diameters of inhibition zones. The extracts of Aspergillus ochraceus 3MCMC3 and Penicillium citrinum (14) 4MCMC16 present wide spectral antibacterial properties, inhibiting 100% and 80% of the developing germs, especially Pseudomonas aeruginosa 9027. The extract of Penicillium (1) 3MLLC5 had the highest efficiency on this strain; P. aeruginosa 9027 and Escherichia coli 10536 were the most sensitive germs when treated with these extracts. These marine fungi can be an important source of antibacterial secondary metabolites.
Castillo-Machalskis
Isabel
I
Instituto Oceanográfico de Venezuela, Universidad de Oriente (UDO-Sucre), Av. Universidad, Cerro Colorado, Código postal 6101, Cumaná, Venezuela.
D'Armas
Haydelba
H
Malaver
Nora
N
Núñez
Maximiano
M
D000900:Anti-Bacterial Agents / Q000302:isolation & purification / Q000494:pharmacology*; D006090:Gram-Negative Bacteria / Q000187:drug effects*; D006094:Gram-Positive Bacteria / Q000187:drug effects*; D008826:Microbial Sensitivity Tests; D003904:Mitosporic Fungi / Q000302:isolation & purification; D043982:Rhizophoraceae / Q000382:microbiology*; D014687:Venezuela
D000900:Anti-Bacterial Agents