Association Between Environmental Microbiota and Indigenous Bacteria Found in Hemolymph, Extrapallial Fluid and Mucus of Anodonta cygnea (Linnaeus, 1758) |
| |
Authors: | Filipa Antunes Mariana Hinzmann Manuel Lopes-Lima Jorge Machado Paulo Martins da Costa |
| |
Affiliation: | 1. ICBAS-Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Largo Professor Abel Salazar, 2, 4099-003, Porto, Portugal 2. CIIMAR-Centro Interdisciplinar de Investiga??o Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123, Porto, Portugal
|
| |
Abstract: | Bivalves filter and accumulate large numbers of microorganisms present in the harvesting water. A complete understanding of the balance between Anodonta cygnea and the microbiota present in their surrounding environment remains incomplete. Therefore, the aim of this study was to quantify and identify the indigenous bacteria in the biological fluids of A. cygnea collected from Mira Lagoon in northern Portugal. The results showed Vibrio metschnikovii and Aeromonas sobria as the dominant groups. The median for total bacteria from mucus was 3.1 × 103 CFU g−1, whereas the range in means from fluids was 1.5 × 102 to 6.5 × 102 CFU ml−1. During the experimental work, Escherichia coli and enterococci were not detected in healthy A. cygnea. However, the periodic detection of E. coli and enterococci in Mira lagoon revealed its presence in the water. Our observations suggest that A. cygnea has the ability to filter and eliminate E. coli, present in the surrounding environment, through an active phagocytic process conducted by hemolymph circulating cells, the hemocytes. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|