@article{fdi:010065267,
  title = {{E}ndolithic microbial communities in carbonate precipitates from serpentinite-hosted hyperalkaline springs of the {V}oltri {M}assif ({L}igurian {A}lps, {N}orthern {I}taly)},
  author = {{Q}u{\'e}m{\'e}neur, {M}arianne and {P}alvadeau, {A}. and {P}ostec, {A}. and {M}onnin, {C}. and {C}havagnac, {V}. and {O}llivier, {B}ernard and {E}rauso, {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {V}oltri {M}assif is an ophiolitic complex located in the {L}igurian {A}lps close to the city of {G}enova ({N}orthern {I}taly) where several springs discharge high p{H} (up to 11.7), low salinity waters produced by the active serpentinization of the ultramafic basement. {M}ixing of these hyperalkaline waters with the river waters along with the uptake of atmospheric carbon dioxide forms brownish carbonate precipitates covering the bedrock at the springs. {D}iverse archaeal and bacterial communities were detected in these carbonate precipitates using 454 pyrosequencing analyses of 16{S} ribosomal {RNA} (r{RNA}) genes. {A}rchaeal communities were dominated by members of potential methane-producing and/or methane-oxidizing {M}ethanobacteriales and {M}ethanosarcinales ({E}uryarchaeota) together with ammonia-oxidizing {N}itrososphaerales ({T}haumarchaeota) similar to those found in other serpentinization-driven submarine and terrestrial ecosystems. {B}acterial communities consisted of members of the {P}roteobacteria, {A}ctinobacteria, {P}lanctomycetes, {B}acteroidetes, {C}hloroflexi, and {V}errucomicrobia phyla, altogether accounting for 92.2 % of total retrieved bacterial 16{S} r{RNA} gene sequences. {A}mongst {B}acteria, potential chemolithotrophy was mainly associated with {A}lpha- and {B}etaproteobacteria classes, including nitrogen-fixing, methane-oxidizing or hydrogen-oxidizing representatives of the genera {A}zospirillum, {M}ethylosinus, and {H}ydrogenophaga/'{S}erpentinomonas', respectively. {B}esides, potential chemoorganotrophy was attributed mainly to representatives of {A}ctinobacteria and {P}lanctomycetales phyla. {T}he reported 16{S} r{RNA} gene data strongly suggested that hydrogen, methane, and nitrogen-based chemolithotrophy can sustain growth of the microbial communities inhabiting the carbonate precipitates in the hyperalkaline springs of the {V}oltri {M}assif, similarly to what was previously observed in other serpentinite-hosted ecosystems.},
  keywords = {{M}icrobial diversity ; {S}erpentinization ; {C}arbonates ; {L}iguria ; {A}lkaliphilic ; {E}xtreme environment ; {P}yrosequencing ; {ITALIE} ; {ALPES}},
  booktitle = {},
  journal = {{E}nvironmental {S}cience and {P}ollution {R}esearch},
  volume = {22},
  numero = {18},
  pages = {13613--13624},
  ISSN = {0944-1344},
  year = {2015},
  DOI = {10.1007/s11356-015-4113-7},
  URL = {https://www.documentation.ird.fr/hor/fdi:010065267},
}