@article{fdi:010069266,
  title = {{W}hen riverine dissolved organic matter ({DOM}) meets labile {DOM} in coastal waters : changes in bacterial community activity and composition},
  author = {{B}lanchet, {M}. and {P}ringault, {O}livier and {P}anagiotopoulos, {C}. and {L}efevre, {D}. and {C}harriere, {B}. and {G}higlione, {J}. {F}. and {F}ernandez, {C}. and {A}paricio, {F}. {L}. and {M}arrase, {C}. and {C}atala, {P}. and {O}riol, {L}. and {C}aparros, {J}. and {J}oux, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{H}eterotrophic bacterial communities in marine environments are exposed to a heterogeneous mixture of dissolved organic compounds with different bioreactivity that may control both their activity and composition. {T}he coastal environment is an example of a mixing area where recalcitrant allochthonous organic matter from rivers can encounter labile organic matter from marine phytoplanktonic blooms. {T}he objective of this study was to explore the effects of mixed qualities of dissolved organic matter ({DOM}) on bacterial community activity ({BCA}) and bacterial community composition ({BCC}) and to test for a priming effect when {DOM} sources are added in combination. {C}oastal marine bacterial communities were incubated separately with a mixture of amino acids and with natural riverine {DOM} or with both sources together for 42 days. {A}ddition of amino acids alone or in combination with riverine {DOM} led to a similar stimulation of {BCA} compared to control condition, whereas addition of riverine {DOM} alone did not modify {BCA} compared to the control. {O}n the contrary, {BCC} analyzed by 16{S} r{RNA} gene pyrosequencing was not affected by the addition of amino acids alone, but changed dramatically with riverine {DOM} alone or in combination with amino acids. {O}ur results show that changes in {BCA} and {BCC} can be driven by different types of {DOM}, but that these changes are not necessarily coupled. {M}oreover, the addition of labile {DOM} did not modify the microbial decomposition of riverine {DOM}, nor the {BCC}, suggesting that a priming effect did not occur under these experimental conditions.},
  keywords = {{D}issolved organic matter ; {B}iodegradation ; {C}oastal waters ; {B}acterial community composition ; {P}riming effect ; {FRANCE} ; {RHONE}},
  booktitle = {},
  journal = {{A}quatic {S}ciences},
  volume = {79},
  numero = {1},
  pages = {27--43},
  ISSN = {1015-1621},
  year = {2017},
  DOI = {10.1007/s00027-016-0477-0},
  URL = {https://www.documentation.ird.fr/hor/fdi:010069266},
}