Fig. 5.
Assessment of physiological and morphological parameters in OsARP6-RNAi knockdown lines compared to the wild-type (WT) under control conditions and after 7 d of Pi deficiency. Stress indicators are (A) stomatal conductivity, (B) total carotenoid content, (C) relative water content (RWC), and (D) membrane stability index (MSI) (n=4). Quantifications of photosynthetic activity are (E) chlorophyll (Chl) fluorescence, (F) chlorophyll a (Chl A), chlorophyll b (Chl B), and total chlorophyll (TChl) (n=4). Significant differences compared to the WT control were determined using Duncan’s test: *P<0.05, **P<0.01, ***P<0.001. (G) Total root length, (H) total shoot length, and (I) root/shoot ratio (n=9). (J) Total root hair length (n=2). Significant differences compared to the WT control were determined using Student’s t-test: *P<0.05. All data are means (±SD).