Monitor changes in the proteome of senescing leaves, using protein MS data obtained from the same leaf groups used for imaging. Arabidopsis thaliana mature leaves were grouped according to their chlorophyll content: Dark Green (DG), Green (G), Light Green (LG) and Yellow (Y), containing 100, 45, 25 and 6.5% chlorophyll relative to DG, respectivelyArabidopsis thaliana mature leaves were grouped according to their chlorophyll content: Dark Green (DG), Green (G), Light Green (LG) and Yellow (Y), containing 100, 45, 25 and 6.5% chlorophyll relative to DG, respectively