Fig. 6

Analysis of phenotypes, chlorophyll contents, PSII photochemical efficiency (Fv/Fm), and expression levels of chlorophyll catabolism genes in detached leaves from WT and OX plants during dark-induced leaf senescence; a senescing phenotypes of detached leaves after 0, 2, 4, and 8 days in the dark; b chlorophyll contents in detached leaves from WT and OX plants were measured after 8-days dark treatment. c leaves were detached from WT and OX plants and Fv/Fm values were determined after 8-days dark treatment. d-h SGR, NYC1, PPH, PAO, and RCCR expression levels in detached leaves from WT and OX plants after 6-days dark treatment; AtTublin was used as an internal control. Asterisks (*) indicate significant differences; t-tests, p < 0.05