A soybean dual-specificity kinase, GmSARK, and its Arabidopsis homolog, AtSARK, regulate leaf senescence through synergistic actions of auxin and ethylene.
Xu F, Meng T, Li P, Yu Y, Cui Y, Wang Y, Gong Q, Wang NN. Plant Physiol. 2011 Dec; 157(4):2131-53. Epub 2011 Oct 27.