Table 2.

Cell walls apparent elastic modulus measured in cells of the elongation zone of roots of Col-0, ttl1, prc1-1 and ttl1prc1-1 grown in osmotic stress conditions (−1.2 MPa).

Osmotic Stress (−1.2 MPa)	Y (kPa)	N	Error
Col-0	164.98 ± 2.66 a	263	0.16
ttl1	29.71 ± 13.9 b	324	0.77
prc1-1	51.54 ± 24.86 c	1161	0.72

Values are means ± SD; 200–600 force curves were obtained from the central part of elongation cells of 3 roots for each growing condition. Seedlings were attached to petri dishes with silicone and covered with 1× PBS phosphate-buffered saline (PBS) solution. Normalized Young’s modulus histograms were obtained from all experimental conditions. Each histogram was fitted with a Gaussian curve. Statistical significance is as follows: p < 0.05 (by Student’s t-test).