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Microbial Ecology

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  1. Trace metal concentration in a temperate freshwater reservoir seasonally subjected to blooms of toxin-producing cyanobacteria.

    Microbial Ecology 68(4):671 (2014) PMID 25008982

    In situ interactions between cyanobacteria and metals were studied at Torrão reservoir (Tâmega River, North Portugal). The metal content of water and sediments from the reservoir was monitored monthly at Marco de Canaveses (seasonally subjected to toxic blooms of Microcystis aeruginosa) and upstream...
  2. Plasmid-Related Quinolone Resistance Determinants in Epidemic Vibrio parahaemolyticus, Uropathogenic Escherichia coli, and Marine Bacteria f...

    Microbial Ecology 68(2):324 (2014) PMID 24760167

    Marine bacteria from aquaculture areas with industrial use of quinolones have the potential to pass quinolone resistance genes to animal and human pathogens. The VPA0095 gene, related to the quinolone resistance determinant qnrA, from clinical isolates of epidemic Vibrio parahaemolyticus conferred r...
  3. Analysis of rumen methanogen diversity in water buffaloes (Bubalus bubalis) under three different diets.

    Microbial Ecology 64(1):131 (2012) PMID 22286379

    We investigated the diversity of rumen methanogens in Mediterranean water buffaloes maintained in Brazil under different diets: corn silage, grazing pasture, or sugar cane. A total of 467 clones were isolated from three methanogen 16S rRNA gene clone libraries that each represented a distinct feed t...
  4. Quantifying Ostreid herpesvirus (OsHV-1) genome copies and expression during transmission.

    Microbial Ecology 63(3):596 (2012) PMID 21935610

    We employed quantitative polymerase chain reaction (qPCR) assays based on the A fragment and OsHV-1 catalytic subunit of a DNA polymerase δ (DNA pol) gene. Viral genome copy numbers based on qPCR assays peaked between 3 and 5 days. To measure the presence of viable and actively transcribing virus,...
  5. Differences between bacterial communities associated with the surface or tissue of Mediterranean sponge species.

    Microbial Ecology 61(4):769 (2011) PMID 21246194

    Bacterial communities associated with the surfaces of several Mediterranean sponge species (Agelas oroides, Chondrosia reniformis, Petrosia ficiformis, Geodia sp., Tethya sp., Axinella polypoides, Dysidea avara, and Oscarella lobularis) were compared to those associated with the meso...
  6. How a bacterial community originating from a contaminated coastal sediment responds to an oil input.

    Microbial Ecology 60(2):394 (2010) PMID 20652237

    We concluded that "Etang-de-Berre" bacterial communities inhabiting oiled sediments for decades adopted a specific structure depending on oil presence and were able to face hydrocarbon contamination quickly and efficiently....
  7. Community analysis reveals close affinities between endophytic and endolichenic fungi in mosses and lichens.

    Microbial Ecology 60(2):340 (2010) PMID 20625714

    We evaluate whether these fungi represent distinct ecological guilds or a single guild of flexible symbiotrophs capable of colonizing plants or lichens indiscriminately. Culturable fungi were sampled exhaustively from replicate sets of phylogenetically diverse plants and lichens in three microsites...
  8. Diversity and abundance of ammonia-oxidizing bacteria and ammonia-oxidizing archaea during cattle manure composting.

    Microbial Ecology 60(4):807 (2010) PMID 20607531

    We investigated the relative diversity and abundance of AOB and AOA using cloning procedures, denaturing gradient gel electrophoresis analysis, and real-time PCR during several stages in the process of cattle manure composting. Our results revealed that the AOB community structure changed during the...
  9. Bacterial diversity of weathered terrestrial Icelandic volcanic glasses.

    Microbial Ecology 60(4):740 (2010) PMID 20473490

    The diversity of microbial communities inhabiting two terrestrial volcanic glasses of contrasting mineralogy and age was characterised. Basaltic glass from a <0.8 Ma hyaloclastite deposit (Valafell) harboured a more diverse Bacteria community than the younger rhyolitic glass from app...
  10. Active Archaeal Communities at Cold Seep Sediments Populated by Siboglinidae Tubeworms from the Storegga Slide.

    Microbial Ecology (2010) PMID 20401609

    We hypothesize that the vertical geochemical imprint created by the tubeworms could support broad active archaeal populations in the Siboglinidae-populated Storegga Slide sediments....