Chlorophyll a fluorescence, under half of the adaptive growth-irradiance, for high-throughput sensing of leaf-water deficit in Arabidopsis thaliana accessions

Table 3 Mean of pixel intensity from derived combinatorial fluorescence images (F _CI) for well-watered (control) and drought-stressed (dry) on day 3 (d3), day 5 (d5), day 7 (d7), and day 10 (d10) of the induced drought

A. thaliana accessions	Mean pixel intensity of derived combinatorial fluorescence images (F _CI)
A. thaliana accessions	d3	d5	d7	d10
Rsch
Control	160.6 ± 2.1	141.9 ± 3.5	139.2 ± 4.2	134.3 ± 4.2
Dry	118.6 ± 3.3***	120.1 ± 2.4**	105.6 ± 4.1**	61.1 ± 2.0***
Te
Control	118.2 ± 2.1	121.8 ± 3.9	124.1 ± 4.5	109.3 ± 3.8
Dry	145.9 ± 4.4*	144.3 ± 7.9*	91.0 ± 7.0**	64.7 ± 7.4**
C24
Control	142.2 ± 15.0	138.7 ± 1.4	135.4 ± 1.4	123.9 ± 3.5
Dry	113.4 ± 4.8	130.7 ± 7.4	104.0 ± 8.0**	68.9 ± 5.3***
Col
Control	121.4 ± 2.6	129.1 ± 3.4	138.9 ± 1.9	129.8 ± 3.8
Dry	142.8 ± 1.8*	142.3 ± 4.02*	115.4 ± 5.3**	98.9 ± 5.4**
Nd
Control	122.7 ± 5.2	132.6 ± 4.5	120.1 ± 7.1	112.9 ± 5.5
Dry	156.7 ± 0.8	147.1 ± 4.7	128.5 ± 10.2	97.7 ± 11.2
Co
Control	133.6 ± 1.3	131.3 ± 1.9	124.6 ± 2.3	119.3 ± 7.8
Dry	124.6 ± 7.6	136.1 ± 12.8	140.5 ± 3.8*	129.5 ± 5.1

The data shown are mean over the whole rosettes ± SE (n = 3)
Asterisks (*) in the row of drought-stressed “dry” denote statistical significance of F _CI data with respect to their corresponding control plant samples (* p < 0.05; ** p < 0.01; *** p < 0.001, unpaired t test)

ISSN: 1746-4811