%0 Journal Article %T Bacterial-induced calcium oscillations are common to nitrogen-fixing associations of nodulating legumes and non-legumes %+ Laboratoire d'Ecologie Microbienne - UMR 5557 (LEM) %A Granqvist, Emma %A Sun, Jongho %A Camp, Rik, Op Den %A Pujic, Petar %A Hill, Lionel %A Normand, Philippe %A Morris, Richard J. %A Downie, J. Allan %A Geurts, Rene %A Oldroyd, Giles E. D. %Z BBSRC [BB/J004553/1] ; European Research Council ; John Innes Foundation ; NWO [VICI 865.13.001] %< avec comité de lecture %@ 0028-646X %J New Phytologist %I Wiley %V 207 %N 3 %P 551-558 %8 2015 %D 2015 %R 10.1111/nph.13464 %M 26010117 %K actinorhizal %K calcium oscillations %K Frankia %K legumes %K nitrogen-fixing clade %K nodulation %K Parasponia %K symbiotic signalling %Z Life Sciences [q-bio]Journal articles %X * Plants that form root-nodule symbioses are within a monophyletic \textquoteleftnitrogen-fixing' clade and associated signalling processes are shared with the arbuscular mycorrhizal symbiosis. Central to symbiotic signalling are nuclear-associated oscillations in calcium ions (Ca2+), occurring in the root hairs of several legume species in response to the rhizobial Nod factor signal. * In this study we expanded the species analysed for activation of Ca2+ oscillations, including nonleguminous species within the nitrogen-fixing clade. * We showed that Ca2+ oscillations are a common feature of legumes in their association with rhizobia, while Cercis, a non-nodulating legume, does not show Ca2+ oscillations in response to Nod factors from Sinorhizobium fredii NGR234. Parasponia andersonii, a nonlegume that can associate with rhizobia, showed Nod factor-induced calcium oscillations to S. fredii NGR234 Nod factors, but its non-nodulating sister species, Trema tomentosa, did not. Also within the nitrogen-fixing clade are actinorhizal species that associate with Frankia bacteria and we showed that Alnus glutinosa induces Ca2+ oscillations in root hairs in response to exudates from Frankia alni, but not to S. fredii NGR234 Nod factors. * We conclude that the ability to mount Ca2+ oscillations in response to symbiotic bacteria is a common feature of nodulating species within the nitrogen-fixing clade. %G English %2 https://univ-lyon1.hal.science/hal-02487317/document %2 https://univ-lyon1.hal.science/hal-02487317/file/2015_Granqvist_New%20Phytol_1.pdf %L hal-02487317 %U https://univ-lyon1.hal.science/hal-02487317 %~ CNRS %~ UNIV-LYON1 %~ INRA %~ BIOENVIS %~ AGREENIUM %~ UDL %~ UNIV-LYON %~ INRAE %~ ECOMIC