@article{fdi:010054301, title = {{E}ndogeic earthworms shape bacterial functional communities and affect organic matter mineralization in a tropical soil}, author = {{B}ernard, {L}aetitia and {C}hapuis {L}ardy, {L}ydie and {R}azafimbelo, {T}. and {R}azafindrakoto, {M}. and {P}ablo, {A}nne-{L}aure and {L}egname, {E}. and {P}oulain, {J}. and {B}ruls, {T}. and {O}'{D}onohue, {M}. and {B}rauman, {A}lain and {C}hotte, {J}ean-{L}uc and {B}lanchart, {E}ric}, editor = {}, language = {{ENG}}, abstract = {{P}riming effect ({PE}) is defined as a stimulation of the mineralization of soil organic matter ({SOM}) following a supply of fresh organic matter. {T}his process can have important consequences on the fate of {SOM} and on the management of residues in agricultural soils, especially in tropical regions where soil fertility is essentially based on the management of organic matter. {E}arthworms are ecosystem engineers known to affect the dynamics of {SOM}. {E}ndogeic earthworms ingest large amounts of soil and assimilate a part of organic matter it contains. {D}uring gut transit, microorganisms are transported to new substrates and their activity is stimulated by (i) the production of readily assimilable organic matter (mucus) and (ii) the possible presence of fresh organic residues in the ingested soil. {T}he objective of our study was to see (i) whether earthworms impact the {PE} intensity when a fresh residue is added to a tropical soil and (ii) whether this impact is linked to a stimulation/inhibition of bacterial taxa, and which taxa are affected. {A} tropical soil from {M}adagascar was incubated in the laboratory, with a (13){C} wheat straw residue, in the presence or absence of a peregrine endogeic tropical earthworm, {P}ontoscolex corethrurus. {E}missions of (12){CO}(2) and (13){CO}(2) were followed during 16 days. {T}he coupling between {DNA}-{SIP} (stable isotope probing) and pyrosequencing showed that stimulation of both the mineralization of wheat residues and the {PE} can be linked to the stimulation of several groups especially belonging to the {B}acteroidetes phylum. {T}he {ISME} {J}ournal (2012) 6, 213-222; doi:10.1038/ismej.2011.87; published online 14 {J}uly 2011}, keywords = {{B}acteroidetes ; {DNA}-{SIP} ; {M}adagascar ; {P}ontoscolex corethrurus ; priming effect ; pyrosequencing ; {MADAGASCAR}}, booktitle = {}, journal = {{ISME} {J}ournal}, volume = {6}, numero = {1}, pages = {213--222}, ISSN = {1751-7362}, year = {2012}, DOI = {10.1038/ismej.2011.87}, URL = {https://www.documentation.ird.fr/hor/fdi:010054301}, }