Contrasting bacterial strategies to coexist with a flagellate predator in an experimental microbial assemblage.

Applied and Environmental Microbiology
J PernthalerR Psenner

Abstract

We studied predator-induced changes within a slowly growing mixed microbial assemblage that was sustained by algal exudates in a continuous cultivation system. In situ hybridization with fluorescent monolabeled oligonucleotide probes was used for a tentative community analysis. This method also allowed us to quantify the proportions of predators with ingested bacteria of different taxonomic groups. In addition, we determined grazing rates on bacteria with fluorescently labelled prey. Bacteria belonging to the alpha and beta subdivisions of the phylum Proteobacteria ((alpha)- and (beta)-Proteobacteria, respectively) showed very different responses to the addition of a bacterivorous flagellate, Bodo saltans. Within one day, filamentous protist-inedible bacteria developed; these belonged to the (beta)-Proteobacteria and constituted between 8.7 and 34% of bacteria from this subgroup. Total abundance of (beta)-Proteobacteria decreased from 3.05 x 10(sup6) to 0.23 x 10(sup6) cells ml(sup-1), and estimated cell division rates were low. Other morphologically inconspicuous protist-edible bacteria belonging to the (alpha)-Proteobacteria were found to respond to predation by an increase in growth rate. Although these bacteria were heavily...Continue Reading

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Citations

Apr 28, 2004·FEMS Microbiology Reviews·Markus G Weinbauer
Feb 1, 2002·FEMS Microbiology Ecology·David L Kirchman
Oct 1, 2002·FEMS Microbiology Ecology·Hanne DegansKlaus Jürgens
Nov 30, 2010·Ecological Entomology·K S Pelz-StelinskiM G Kaufman
Aug 31, 2000·Applied and Environmental Microbiology·J S PoindexterJ T Staley
Dec 13, 2005·Microbial Ecology·Ludwig JardillierDidier Debroas
Sep 9, 2005·Microbiology and Molecular Biology Reviews : MMBR·Jakob Pernthaler, Rudolf Amann
May 26, 2009·Applied and Environmental Microbiology·Osana Bonilla-FindjiMarkus G Weinbauer
Dec 23, 2006·Microbial Ecology·S Paul ShannonJames P Grover
Jan 3, 2013·FEMS Microbiology Ecology·Clara Ruiz-GonzálezSergi Sabater
May 11, 2012·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Menka Mittal, Karl J Rockne
Feb 15, 2011·FEMS Microbiology Ecology·Martina ErkenDiane McDougald
Apr 11, 2001·FEMS Microbiology Ecology·M W. Hahn, M G. Höfle
Nov 5, 2005·Applied and Environmental Microbiology·Taichi Yokokawa, Toshi Nagata
Sep 9, 2006·Microbiology and Molecular Biology Reviews : MMBR·Kevin D Young
Feb 5, 2005·Applied and Environmental Microbiology·Carsten Matz, Klaus Jürgens
Apr 22, 2010·Environmental Microbiology·Judith F BlomJakob Pernthaler
Aug 10, 2010·Environmental Science and Pollution Research International·Sylwia LewIzabella Babińska
Nov 15, 2000·FEMS Microbiology Reviews·R Amann, W Ludwig
Feb 28, 2001·Environmental Microbiology·T BouchezM Wagner
Jul 27, 2010·Applied and Environmental Microbiology·Judith F BlomJakob Pernthaler
Jan 31, 2012·Applied and Environmental Microbiology·Robert R StackhouseAmy C Lee Wong
Dec 1, 2002·FEMS Microbiology Ecology·Y BettarelT Sime-Ngando
May 7, 2003·Applied and Environmental Microbiology·Christine BeardsleyRudolf Amann
May 20, 2011·Journal of the Royal Society, Interface·Valentina RossettiHomayoun C Bagheri
May 24, 2018·Biochemistry and Cell Biology = Biochimie Et Biologie Cellulaire·Charlene E LancasterMauricio R Terebiznik
Dec 17, 2020·Microorganisms·Richard GuillonneauMaëlle Molmeret
Dec 22, 2017·Environmental Microbiology·Olga FlegontovaAleš Horák

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