The <i>papp5</i> mutation rescues the <i>crd</i> phenotype.

<p>Plants were grown on soil under short day (SD) conditions (9 hours light/15 hours darkness) to characterize wild type, <i>crd</i>, <i>papp5</i> and <i>papp5crd</i>. A) Representative images from 6-week-old plants. Scale bars represent 1 cm. B) Chlorophyll a and b content and chlorophyll a/b ratio in 6-week-old plants. Significant differences relative to Col0 (<i>crd</i>) and to <i>crd</i> (<i>papp5crd</i>) according to <i>t-test</i> (a, P<0.001; b, P<0.005; c, P<0,01) are shown. C) Representative electron microscopy images of chloroplasts from Col0, <i>crd</i>, <i>papp5</i> and <i>papp5crd</i> from 6-week-old plants grown under SD conditions. Scale bar is 1 µm. D) Blue native PAGE profile of thylakoid membrane protein complexes isolated from Col0, <i>papp5</i>, <i>crd</i> and <i>papp5crd</i> plants. Each well was loaded with the 35 µg protein.