@article{PAR00001084,
  title = {{V}irus-bacterium interactions in water and sediment of {W}est {A}frican inland aquatic systems [+ {C}orrection, vol. 73, 2, 2007]},
  author = {{B}ettarel, {Y}van and {B}ouvy, {M}arc and {D}umont, {C}. and {S}ime {N}gando, {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he ecology of virioplankton in tropical aquatic ecosystems is poorly documented, and in particular, there are no references concerning {A}frican continental waters in the literature. {I}n this study, we examined virusbacterium interactions in the pelagic and benthic zones of seven contrasting shallow inland waters in {S}enegal, including one hypersaline lake. {SYBR} {G}old-stained samples revealed that in the surface layers of the sites, the numbers of viruses were in the same range as the numbers of viruses reported previously for productive temperate systems. {D}espite high bacterial production rates, the percentages of visibly infected cells (as determined by transmission electron microscopy) were similar to the lowest percentages (range, 0.3 to 1.1%; mean, 0.5%) found previously at pelagic freshwater or marine sites, presumably because of the local environmental and climatic conditions. {S}ince the percentages of lysogenic bacteria were consistently less than 8% for pelagic and benthic samples, lysogeny did not appear to be a dominant strategy for virus propagation at these sites. {I}n the benthic samples, viruses were highly concentrated, but paradoxically, no bacteria were visibly infected. {T}his suggests that sediment provides good conditions for virus preservation but ironically is an unfavorable environment for proliferation. {I}n addition, given the comparable size distributions of viruses in the water and sediment samples, our results support the paradigm that aquatic viruses are ubiquitous and may have moved between the two compartments of the shallow systems examined. {O}verall, this study provides additional information about the relevance of viruses in tropical areas and indicates that the intensity of virus-bacterium interactions in benthic habitats may lower than the intensity in the adjacent bodies of water.},
  keywords = {},
  booktitle = {},
  journal = {{A}pplied and {E}nvironmental {M}icrobiology},
  volume = {72},
  numero = {8},
  pages = {5274--5282  [+ correction 1 ]},
  ISSN = {0099-2240},
  year = {2006},
  DOI = {10.1128/{AEM}.00863-06},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00001084},
}