@article{fdi:010019294, title = {{F}lavan-containing cells delimit {F}rankia-infected compartments in {C}asuarina glauca nodules}, author = {{L}aplaze, {L}. and {G}herbi, {H}. and {F}rutz, {T}. and {P}awlowski, {K}. and {F}ranche, {C}. and {M}acheix, {J}.{J}. and {A}uguy, {F}lorence and {B}ogusz, {D}idier and {D}uhoux, {E}mile}, editor = {}, language = {{ENG}}, abstract = {{W}e investigated the involvement of polyphenols in the #{C}asuarina glauca$-#{F}rankia$ symbiosis. {H}istological analysis revealed a cell-specific accumulation of phenolics in #{C}. glauca$ nodule lobes, creating a compartmentation in the cortex. {H}istochemical and biochemical analyses indicated that these phenolic compounds belong to the flavan class of flavonoids. {W}e show that the same compounds were synthesized in nodules and uninfected roots. {H}owever, the amount of each flavan was dramatically increased in nodules compared with uninfected roots. {T}he use of in situ hybridization established that chalcone synthase transcripts accumulate in flavan-containing cells at the apex of the nodule lobe. {O}ur findings are discussed view of the possible role of flavans in plant-microbe interactions. ({R}{\'e}sum{\'e} d'auteur)}, keywords = {{SYMBIOSE} ; {PLANTE} ; {BACTERIE} ; {COMPOSE} {PHENOLIQUE} ; {FLAVONOIDE} ; {NODULE} {RACINAIRE} ; {ANALYSE} {CHIMIQUE} ; {ANALYSE} {GENETIQUE} ; {TECHNIQUE} {PCR} ; {CLHP} ; {GENE} {CHS} ; {INTERACTION} {PLANTE} {MICROORGANISME} ; {HYBRIDATION} {IN} {SITU} ; {HISTOCHIMIE}}, booktitle = {}, journal = {{P}lant {P}hysiology}, volume = {121}, numero = {1}, pages = {113--122}, ISSN = {0032-0889}, year = {1999}, DOI = {10.1104/pp.121.1.113}, URL = {https://www.documentation.ird.fr/hor/fdi:010019294}, }