@article{fdi:010064640, title = {{I}nhibition of auxin signaling in {F}rankia species-infected cells in {C}asuarina glauca nodules leads to increased nodulation}, author = {{C}hampion, {A}ntony and {L}ucas, {M}ika{\¨e}l and {T}romas, {A}lexandre and {V}aissayre, {V}irginie and {C}rabos, {A}mandine and {D}iedhiou, {I}. and {P}rodjinoto, {H}. and {M}oukouanga, {D}aniel and {P}irolles, {E}lodie and {C}issoko, {M}. and {B}onneau, {J}ocelyne and {G}herbi, {H}assen and {F}ranche, {C}laudine and {H}ocher, {V}al{\'e}rie and {S}vistoonoff, {S}ergio and {L}aplaze, {L}aurent}, editor = {}, language = {{ENG}}, abstract = {{A}ctinorhizal symbioses are mutualistic interactions between plants and the soil bacteria {F}rankia spp. that lead to the formation of nitrogen-fixing root nodules. {T}he plant hormone auxin has been suggested to play a role in the mechanisms that control the establishment of this symbiosis in the actinorhizal tree {C}asuarina glauca. {H}ere, we analyzed the role of auxin signaling in {F}rankia spp.-infected cells. {U}sing a dominant-negative version of an endogenous auxin-signaling regulator, {INDOLE}-3-{ACETIC} {ACID}7, we established that inhibition of auxin signaling in these cells led to increased nodulation and, as a consequence, to higher nitrogen fixation per plant even if nitrogen fixation per nodule mass was similar to that in the wild type. {O}ur results suggest that auxin signaling in {F}rankia spp.-infected cells is involved in the long-distance regulation of nodulation in actinorhizal symbioses.}, keywords = {}, booktitle = {}, journal = {{P}lant {P}hysiology}, volume = {167}, numero = {3}, pages = {1149--1157}, ISSN = {0032-0889}, year = {2015}, DOI = {10.1104/pp.114.255307}, URL = {https://www.documentation.ird.fr/hor/fdi:010064640}, }