Composition of the aerial bacterial community of Santarém, Pará: influence of birds

Abstract

The open air is a mixture that includes biological pollutants, with a potential effect on people's health and a possible public health problem. This research aimed to identify the bacterial community of urban areas in Santarém-PA, and to correlate a diversity of microorganisms with the presence of birds. Between August 2017 and May 2018, by the technique of spontaneous sedimentation, plates containing PCA were exposed at ten points in the urban area of ​​Santarém. At the Bacteriology Laboratory of the Federal University of Western Pará, plaques were incubated at 35 ° C for a maximum of 48 hours, during which bacteria counts were initiated by isolation and purification of colonies. The purification process took place in the TSA medium, after the morphotintorial test by Gram stain, and the biochemical series for identification at the lowest possible taxonomic level. Among the genera found, we highlight Staphylococcus spp., Mycobacterium spp. and Lactobacillus spp .. The results, the influence of the presence of claws on the economy and the richness of bacteria, except for the control point, as it is a wooded area and there is no presence of birds, had low bacterial growth.