@article{fdi:010088743, title = {{A}bscisic acid- and ethylene-induced abscission of yellow lupine flowers is mediated by jasmonates}, author = {{K}ucko, {A}. and {A}lch{\'e}, {J}. {D}. and {T}ranbarger, {T}imothy and {W}ilmowicz, {E}.}, editor = {}, language = {{ENG}}, abstract = {{T}he appropriate timing of organ abscission determines plant growth, development, reproductive success, and yield in relation to crop species. {A}mong these, yellow lupine is an example of a crop species that loses many fully developed flowers, which limits the formation of pods with high-protein seeds and affects its economic value. {L}upine flower abscission, similarly to the separation of other organs, depends on a complex regulatory network functioning in the cells of the abscission zone ({AZ}). {I}n the present study, genetic, biochemical, and cellular methods were used to highlight the complexity of the interactions among strong hormonal stimulators of abscission, including abscisic acid ({ABA}), ethylene, and jasmonates ({JA}s) precisely in the {AZ} cells, with all results supporting that the {JA}-related pathway has an important role in the phytohormonal cross-talk leading to flower abscission in yellow lupine. {B}ased on obtained results, we conclude that {ABA} and {ET} have positive influence on {JA}s biosynthesis and signaling pathway in time-dependent manner. {B}oth phytohormones changes lipoxygenase ({LOX}) gene expression, affects {LOX} protein abundance, and {JA} accumulation in {AZ} cells. {W}e have also shown that the signaling pathway of {JA} is highly sensitive to {ABA} and {ET}, given the accumulation of {COI}1 receptor and {MYC}2 transcription factor in response to these phytohormones. {T}he results presented provide novel information about the {JA}s-dependent separation of organs and provide insight and details about the phytohormone-related mechanisms of lupine flower abscission.}, keywords = {{A}bscisic acid ; {A}bscission zone ; {E}thylene ; {J}asmonates ; {MYC}2 ; {CORONATINE}-{INSENSITIVE} 1}, booktitle = {}, journal = {{J}ournal of {P}lant {P}hysiology}, volume = {290}, numero = {}, pages = {154119 [8 p.]}, ISSN = {0176-1617}, year = {2023}, DOI = {10.1016/j.jplph.2023.154119}, URL = {https://www.documentation.ird.fr/hor/fdi:010088743}, }