@article{fdi:010087485,
  title = {{A}cetoclastic archaea adaptation under increasing temperature in lake sediments and wetland soils from {A}laska},
  author = {{D}ellagnezze, {B}. {M}. and {B}ovio-{W}inkler, {P}. and {L}avergne, {C}. and {M}enoni, {D}. {A}. and {M}osquillo, {F}. and {C}abrol, {L}{\'e}a and {B}arret, {M}. and {E}tchebehere, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he activity of methanogenic archaea is expected to be strongly affected under warmer temperatures, with higher greenhouse gas ({GHG}) emissions in the {A}rctic. {I}n the sub-{A}rctic and {A}rctic freshwater sediments and wetland soils, acetoclastic methanogenesis is one of the major processes involved in methane ({CH}4) release. {T}o investigate the microbial adaptation/ tolerance at warmer temperatures and high acetate concentration, anaerobic microcosms of lake sediments and wetland soils from sub-{A}rctic ecosystems from {D}enali to {T}oolik regions in {A}laska ({USA}) were set up at four temperatures (5, 10, 15 and 20 degrees {C}). {I}n both environmental and microcosm samples, archaeal diversity was evaluated through specific archaeal 16{S} r{RNA} sequencing as well as bacterial, archaeal and methanogen abundance using quantitative {PCR}. {A}cetate amendment strongly modified the archaeal diversity highly favoring methanogens from {M}ethanosarcinales, and in lower abundance, {M}ethanoregula and {B}athyarchaeia in some lake sediment. {W}hile acetoclastic groups significantly diverged among aquatic and terrestrial ecosystems, temperature did not significantly shape methanogens' diversity, showing their adaptability under warmer conditions. {F}aster microbial response on {CH}4 production rates was observed at warmer temperatures (15 and 20 degrees {C}), bringing insights on the psychrophilic acetoclastic groups adapted to high acetate concentration with potential biotechnological application.},
  keywords = {{M}ethane ; {A}cetoclastic ; {A}rchaeal community ; 16{S} r{RNA} sequencing ; q{PCR} ; {ALASKA}},
  booktitle = {},
  journal = {{P}olar {B}iology},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[17 p.]},
  ISSN = {0722-4060},
  year = {2023},
  DOI = {10.1007/s00300-023-03120-0},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087485},
}