@article{fdi:010072332,
  title = {{B}acterial-viral interactions in the sea surface microlayer of a black carbon-dominated tropical coastal ecosystem ({H}along {B}ay, {V}ietnam)},
  author = {{R}am, {A}. {S}. {P}. and {M}ari, {X}avier and {B}rune, {J}. and {T}orr{\'e}ton, {J}ean-{P}ascal and {C}hu, {V}. {T}. and {R}aimbault, {P}. and {N}iggemann, {J}. and {S}ime-{N}gando, {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}ncreasing human activity has raised concerns about the impact of deposition of anthropogenic combustion aerosols (i.e., black carbon; {BC}) on marine processes. {T}he sea surface microlayer ({SML}) is a key gate for the introduction of atmospheric {BC} into the ocean; however, relatively little is known of the effects of {BC} on bacteria-virus interactions, which can strongly influence microbially mediated processes. {T}o study the impact of {BC} on bacteria-virus interactions, field investigations involving collection from the {SML} and underlying water were carried out in {H}along {B}ay ({V}ietnam). {M}ost inorganic nutrient concentrations, as well as dissolved organic carbon, were modestly but significantly higher (p = 0.02-0.05) in the {SML} than in underlying water. {T}he concentrations of particulate organic carbon (though not chlorophyll a) and of total particulate carbon, which was composed largely of particulate {BC} (mean = 1.7 +/- 6.4 mmol {L}-1), were highly enriched in the {SML}, and showed high variability among stations. {O}n average, microbial abundances (both bacteria and viruses) and bacterial production were 2- and 5fold higher, respectively, in the {SML} than in underlying water. {S}ignificantly lower bacterial production (p < 0.01) was observed in the particulate fraction (> 3 mu m) compared to the bulk sample, but our data overall suggest that bacterial production in the {SML} was stimulated by particulate {BC}. {H}igher bacterial production in the {SML} than in underlying water supported high viral lytic infection rates (from 5.3 to 30.1%) which predominated over percent lysogeny (from undetected to 1.4%). {T}he sorption of dissolved organic carbon by black carbon, accompanied by the high lytic infection rate in the black carbon-enriched {SML}, may modify microbially mediated processes and shift the net ecosystem metabolism (ratio of production and respiration) to net heterotrophy and {CO}2 production in this critical layer between ocean and atmosphere.},
  keywords = {black carbon ; virus-bacteria interaction ; viral lysis ; lysogeny ; sea surface microlayer ; tropical coastal ocean ; {VIET} {NAM} ; {HA} {LONG} {BAIE}},
  booktitle = {},
  journal = {{E}lementa : {S}cience of the {A}nthropocene},
  volume = {6},
  numero = {},
  pages = {art. 13 [19 p.]},
  ISSN = {2325-1026},
  year = {2018},
  DOI = {10.1525/elementa.276},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072332},
}