@article{fdi:010072003,
  title = {{S}oil microbial diversity drives the priming effect along climate gradients : a case study in {M}adagascar},
  author = {{R}azanamalala, {K}. and {R}azafimbelo, {T}. and {M}aron, {P}. {A}. and {R}anjard, {L}. and {C}hemidlin, {N}. and {L}elievre, {M}. and {D}equiedt, {S}. and {R}amaroson, {V}. {H}. and {M}arsden, {C}. and {B}ecquer, {T}hierry and {T}rap, {J}ean and {B}lanchart, {E}ric and {B}ernard, {L}aetitia},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he priming effect in soil is proposed to be generated by two distinct mechanisms: 'stoichiometric decomposition' and/or 'nutrient mining' theories. {E}ach mechanism has its own dynamics, involves its own microbial actors, and targets different soil organic matter ({SOM}) pools. {T}he present study aims to evaluate how climatic parameters drive the intensity of each priming effect generation mechanism via the modification of soil microbial and physicochemical properties. {S}oils were sampled in the center of {M}adagascar, along climatic gradients designed to distinguish temperature from rainfall effects. {A}biotic and biotic soil descriptors were characterized including bacterial and fungal phylogenetic composition. {P}otential organic matter mineralization and {PE} were assessed 7 and 42 days after the beginning of incubation with 13{C}-enriched wheat straw. {B}oth priming mechanisms were mainly driven by the mean annual temperature but in opposite directions. {T}he priming effect generated by stoichiometric decomposition was fostered under colder climates, because of soil enrichment in less developed organic matter, as well as in fast-growing populations. {C}onversely, the priming effect generated by nutrient mining was enhanced under warmer climates, probably because of the lack of competition between slow-growing populations mining {SOM} and fast-growing populations for the energy-rich residue entering the soil. {O}ur study leads to hypotheses about the consequences of climate change on both {PE} generation mechanisms and associated consequences on soil carbon sequestration.},
  keywords = {{MADAGASCAR}},
  booktitle = {},
  journal = {{ISME} {J}ournal},
  volume = {12},
  numero = {2},
  pages = {451--462},
  ISSN = {1751-7362},
  year = {2018},
  DOI = {10.1038/ismej.2017.178},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072003},
}