@article{fdi:010053735,
  title = {{V}iral distribution and life strategies in the {B}ach {D}ang {E}stuary, {V}ietnam},
  author = {{B}ettarel, {Y}van and {B}ouvier, {T}hierry and {A}gis, {M}. and {B}ouvier, {C}. and {C}hu, {T}. and {C}ombe, {M}. and {M}ari, {X}avier and {N}ghiem, {M}. {N}. and {N}guyen, {T}. {T}. and {P}ham, {T}. {T}. and {P}ringault, {O}livier and {R}ochelle {N}ewall, {E}mma and {T}orr{\'e}ton, {J}ean-{P}ascal and {T}ran, {H}. {Q}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}lthough the structure and dynamics of planktonic viruses in freshwater and seawater environments are relatively well documented, little is known about the occurrence and activity of these viruses in estuaries, especially in the tropics. {V}iral abundance, life strategies, and morphotype distribution were examined in the {B}ach {D}ang {E}stuary ({V}ietnam) during the dry season in 2009. {T}he abundance of both viruses and their prokaryotic hosts decreased significantly from upstream to downstream, probably as the result of nutrient dilution and osmotic stress faced by the freshwater communities. {T}he antibiotic mitomycin-{C} revealed that the fraction of lysogenic cells was substantially higher in the lower seawater part of the estuary (max 27.1%) than in the upper freshwater area where no inducible lysogens were observed. {T}he question of whether there is a massive, continuous induction of marine lysogens caused by the mixing with freshwater is considered. {C}onversely, the production of lytic viruses declined as salinity increased, indicating a spatial succession of viral life strategies in this tropical estuary. {I}cosahedral tailless viruses with capsids smaller than 60 nm dominated the viral assemblage throughout the estuary (63.0% to 72.1% of the total viral counts), and their distribution was positively correlated with that of viral lytic production. {I}nterestingly, the gamma-proteobacteria explained a significant portion of the variance in the < 60 nm and 60 to 90 nm tailless viruses (92% and 80%, respectively), and in the {M}yoviridae (73%). {A}lso, 60% of the variance of the tailless larger viruses (> 90 nm) was explained by the beta-proteobacteria. {O}verall, these results support the view that the environment, through selection mechanisms, probably shapes the structure of the prokaryotic community. {T}his might be in turn a source of selection for the virioplankton community via specific affiliation favoring particular morphotypes and life strategies.},
  keywords = {},
  booktitle = {},
  journal = {{M}icrobial {E}cology},
  volume = {62},
  numero = {1},
  pages = {143--154},
  ISSN = {0095-3628},
  year = {2011},
  DOI = {10.1007/s00248-011-9835-6},
  URL = {https://www.documentation.ird.fr/hor/fdi:010053735},
}