Viruses and bacteria in floodplain lakes along a major Amazon tributary respond to distance to the Amazon River

Frontiers in Microbiology
Rafael M AlmeidaNathan Barros

Abstract

In response to the massive volume of water along the Amazon River, the Amazon tributaries have their water backed up by 100s of kilometers upstream their mouth. This backwater effect is part of the complex hydrodynamics of Amazonian surface waters, which in turn drives the variation in concentrations of organic matter and nutrients, and also regulates planktonic communities such as viruses and bacteria. Viruses and bacteria are commonly tightly coupled to each other, and their ecological role in aquatic food webs has been increasingly recognized. Here, we surveyed viral and bacterial abundances (BAs) in 26 floodplain lakes along the Trombetas River, the largest clear-water tributary of the Amazon River's north margin. We correlated viral and BAs with temperature, pH, dissolved inorganic carbon, dissolved organic carbon (DOC), phosphorus, nitrogen, turbidity, water transparency, partial pressure of carbon dioxide (pCO2), phytoplankton abundance, and distance from the lake mouth until the confluence of the Trombetas with the Amazon River. We hypothesized that both bacterial and viral abundances (VAs) would change along a latitudinal gradient, as the backwater effect becomes more intense with increased proximity to the Amazon Rive...Continue Reading

References

Aug 10, 1989·Nature·O BerghM Heldal
May 12, 2004·The Journal of Eukaryotic Microbiology·Corina P D Brussaard
Jun 10, 2004·Environmental Microbiology·Peter Peduzzi, Fritz Schiemer
Aug 6, 2004·Applied and Environmental Microbiology·Alexandre M AnesioJohanna Laybourn-Parry
Sep 16, 2005·Nature·Curtis A Suttle
May 13, 2006·Microbial Ecology·Vinicius F FarjallaAlex Enrich-Prast
Aug 4, 2006·Applied and Environmental Microbiology·Yvan BettarelTélesphore Sime-Ngando
May 11, 2007·Microbiological Research·Magnólia Fernandes Florêncio de Araújo, Mirna J L Godinho
Mar 4, 2010·Microbiology and Molecular Biology Reviews : MMBR·Christian WinterT Frede Thingstad
Sep 14, 2010·Applied and Environmental Microbiology·Nathan BarrosFábio Roland
Dec 15, 2010·Methods in Molecular Biology·Maria Carolina S SoaresFábio Roland
Jul 10, 2012·Applied and Environmental Microbiology·Peter C Pollard
Jun 27, 2013·Frontiers in Microbiology·André M AmadoFabio Roland
Dec 18, 2013·Nature·Gwenaël AbrilFabio Roland

❮ Previous
Next ❯

Citations

Jun 25, 2015·Biological Reviews of the Cambridge Philosophical Society·Peter Peduzzi
Oct 11, 2017·MSphere·Bruno S de O SilvaFabiano L Thompson
Jul 20, 2017·Microbial Ecology·Pedro C JungerVinicius F Farjalla

❮ Previous
Next ❯

Software Mentioned

Google Earth

Related Concepts

Related Feeds

Bacteriophage: Phage Therapy

Phage therapy uses bacterial viruses (bacteriophages) to treat bacterial infections and is widely being recognized as an alternative to antibiotics. Here is the latest research.