PMID- 17298377
OWN - NLM
STAT- MEDLINE
DCOM- 20070403
LR  - 20111117
IS  - 1462-2912 (Print)
IS  - 1462-2912 (Linking)
VI  - 9
IP  - 3
DP  - 2007 Mar
TI  - Grazer and virus-induced mortality of bacterioplankton accelerates development of 
      Flectobacillus populations in a freshwater community.
PG  - 789-800
AB  - We present a detailed analysis of the effects of distinct bacterial mortality 
      factors, viral lysis and heterotrophic nanoflagellates (HNF) bacterivory, 
      associated with the development of filamentous Flectobacillus populations. 
      Reservoir bacterioplankton communities were subjected to additions of both HNF 
      and viruses together, or HNF alone, and then incubated in situ in dialyses bags. 
      For distinct bacterial groups, mortality or growth stimulation was analysed by 
      examining bacterial prey ingested in HNF food vacuoles with fluorescence in situ 
      hybridization (FISH) and via FISH with microautoradiography (MAR-FISH). We also 
      developed a semi-quantitative MAR-FISH-based estimation of relative activities of 
      Flectobacillus populations (targeted by the R-FL615 probe). Bacterial groups 
      vulnerable to HNF predation (mainly clusters of Betaproteobacteria), or 
      discriminated against (Actinobacteria), were detected. Bacterial lineages most 
      vulnerable to virus-lysis (mainly the Betaproteobacteria not targeted by the 
      R-BT065 probe, of the Polynucleobacter cluster) were identified by comparing 
      treatments with HNF alone to HNF and viruses together. Filaments affiliated with 
      the Flectobacillus cluster appeared in both treatments, but were about twice as 
      abundant, long and active as in incubations with viruses and HNF as compared with 
      HNF alone. Viruses appeared to selectively suppress several bacterial groups, 
      perhaps enhancing substrate availability thus stimulating growth and activity of 
      filamentous Flectobacillus.
FAU - Simek, Karel
AU  - Simek K
AD  - Biological Centre of the Academy of Sciences of the Czech Republic, 
      Hydrobiological Institute, Na Sadkach 7, CZ-37005 Ceske Budejovice, Czech 
      Republic.
FAU - Weinbauer, Markus G
AU  - Weinbauer MG
FAU - Hornak, Karel
AU  - Hornak K
FAU - Jezbera, Jan
AU  - Jezbera J
FAU - Nedoma, Jiri
AU  - Nedoma J
FAU - Dolan, John R
AU  - Dolan JR
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Environ Microbiol
JT  - Environmental microbiology
JID - 100883692
SB  - IM
MH  - Animals
MH  - Bacteria/genetics/*growth & development/virology
MH  - Bacteriolysis
MH  - Bacteriophages/*physiology
MH  - Cytophagaceae/*growth & development
MH  - *Ecosystem
MH  - Eukaryota/growth & development/*physiology
MH  - Fresh Water/*microbiology/parasitology/virology
MH  - Lysogeny
MH  - Plankton/genetics/*growth & development/virology
MH  - Predatory Behavior
EDAT- 2007/02/15 09:00
MHDA- 2007/04/04 09:00
CRDT- 2007/02/15 09:00
PHST- 2007/02/15 09:00 [pubmed]
PHST- 2007/04/04 09:00 [medline]
PHST- 2007/02/15 09:00 [entrez]
AID - EMI1201 [pii]
AID - 10.1111/j.1462-2920.2006.01201.x [doi]
PST - ppublish
SO  - Environ Microbiol. 2007 Mar;9(3):789-800. doi: 10.1111/j.1462-2920.2006.01201.x.