. 2016 Dec 23;68(3):657–671. doi: 10.1093/jxb/erw469

Table 1.

Effect of growth irradiance on respiration and photosynthesis in well-watered WT tobacco, AOX overexpressors (B8, B7) and AOX knockdowns (RI9, RI29). Data are the average ±SE of three to five independent experiments. Within an irradiance, values not sharing a common superscript letter are significantly different from one another (P<0.05). In data sets without superscript letters, there are no significant differences between plant lines. See text for further details.

	Growth irradiance (µmol photons m ^–2 s ^–1)
	150 PPFD					400 PPFD					700 PPFD
	B8	B7	WT	RI9	RI29	B8	B7	WT	RI9	RI29	B8	B7	WT	RI9	RI29
F _v/F_m	0.82 ± 0.02	0.80 ± 0.01	0.82 ± 0.01	0.81 ± 0.02	0.80 ± 0.02	0.81 ± 0.01	0.80 ± 0.02	0.79 ± 0.01	0.82 ± 0.01	0.82 ± 0.01	0.80 ± 0.02	0.79 ± 0.01	0.81 ± 0.02	0.80 ± 0.01	0.82 ± 0.02
R _D (µmol CO₂ m^–2 s^–1)	0.72 ± 0.04	0.77 ± 0.02	0.83 ± 0.04	0.87 ± 0.03	0.78 ± 0.05	0.97 ± 0.06	0.93 ± 0.08	0.99 ± 0.05	1.10 ± 0.06	0.89 ± 0.08	1.25 ± 0.07	1.48 ± 0.15	1.32 ± 0.10	1.19 ± 0.09	1.35 ± 0.06
R _L (µmol CO₂ m^–2 s^–1)	0.64 ± 0.04	0.61 ± 0.05	0.72 ± 0.03	0.69 ± 0.05	0.64 ± 0.05	1.05 ± 0.07	1.09 ± 0.09	1.17 ± 0.12	1.07 ± 0.09	1.16 ± 0.08	1.72 ± 0.2	1.93 ± 0.14	1.81 ± 0.16	1.67 ± 0.13	1.79 ± 0.18
Measured at growth PPFD
A _net (µmol CO₂ m^–2 s^–1)	3.09 ± 0.28	3.37 ± 0.47	3.49 ± 0.24	3.65 ± 0.27	3.73 ± 0.32	7.40 ± 0.56	7.35 ± 0.15	7.75 ± 0.54	7.26 ± 0.28	6.91 ± 0.72	9.63 ± 0.88	10.13 ± 0.47	10.19 ± 0.48	9.37 ± 0.37	8.71 ± 0.60
g _snet (mol CO₂ m^–2 s^–1)	0.066 ± 0.003	0.062 ± 0.012	0.065 ± 0.008	0.069 ± 0.005	0.067 ± 0.004	0.087 ± 0.036	0.098 ± 0.020	0.072 ± 0.014	0.76 ± 0.05	0.068 ± 0.016	0.171 ± 0.031	0.156 ± 0.027	0.181 ± 0.16	0.149 ± 0.023	0.165 ± 0.038
Φ _PSIInet	0.73 ± 0.14	0.71 ± 0.11	0.76 ± 0.08	0.74 ± 0.12	0.70 ± 0.15	0.49 ± 0.09	0.54 ± 0.06	0.51 ± 0.08	0.47 ± 0.10	0.52 ± 0.05	0.38 ± 0.04	0.34 ± 0.05	0.37 ± 0.02	0.39 ± 0.02	0.33 ± 0.04
ETR_net (µmol e^– m^–2 s^–1)	45 ± 1.2	47 ± 1.7	41 ± 2.29	45 ± 1.3	42 ± 2.7	80 ± 3.1	77 ± 5.3	90 ± 8.6	78 ± 5.7	82 ± 1.5	105 ± 2.4	110 ± 5.2	120 ± 9.1	116 ± 9.1	115 ± 4.4
NPQ_net	0.19 ± 0.03	0.20 ± 0.02	0.20 ± 0.03	0.17 ± 0.02	0.18 ± 0.03	0.77 ± 0.10	0.78 ± 0.10	0.79 ± 0.11	0.76 ± 0.05	0.82 ± 0.06	1.23 ± 0.21	1.06 ± 0.17	1.20 ± 0.16	1.24 ± 0.15	1.35 ± 0.17
Measured at 1600 PPFD
A _sat (µmol CO₂ m^–2 s^–1)	10.72 ± 0.44^ab	11.13 ± 0.48^ab	11.55 ± 0.44^a	10.71 ± 0.70^ab	9.45 ± 0.40^b	11.87 ± 1.04	12.42 ± 0.82	12.94 ± 0.39	10.70 ± 0.89	12.08 ± 0.42	13.17 ± 0.56^ab	14.49 ± 0.74^a	13.51 ± 0.41^a	12.92 ± 0.34^ab	11.29 ± 0.52^b
g _ssat (mol CO₂ m^–2 s^–1)	0.166 ± 0.01^ab	0.178 ± 0.021^a	0.183 ± 0.019^a	0.147 ± 0.01^bc	0.139 ± 0.006^c	0.171 ± 0.014^b	0.203 ± 0.003^a	0.212 ± 0.006^a	0.170 ± 0.004^b	0.166 ± 0.013^b	0.226 ± 0.007	0.218 ± 0.033	0.232 ± 0.025	0.213 ± 0.008	0.225 ± 0.016
Φ _PSIIsat	0.214 ± 0.008	0.203 ± 0.005	0.219 ± 0.016	0.192 ± 0.010	0.227 ± 0.009	0.223 ± 0.021	0.235 ± 0.008	0.201 ± 0.015	0.209 ± 0.062	0.216 ± 0.053	0.202 ± 0.010	0.189 ± 0.021	0.182 ± 0.017	0.166 ± 0.051	0.179 ± 0.043
ETR_sat (µmol e^– m^–2 s^–1)	152 ± 10.3	147 ± 8.3	154 ± 6.2	143 ± 6.7	158 ± 4.1	143 ± 5.5	141 ± 9.8	151 ± 9.6	156 ± 7.8	148 ± 11.7	136 ± 12.9	130 ± 14.3	121 ± 0.71	136 ± 6.6	128 ± 6.7
NPQ_sat	2.08 ± 0.15	1.89 ± 0.08	1.97 ± 0.10	1.88 ± 0.09	1.96 ± 0.08	1.77 ± 0.11	1.71 ± 0.05	1.83 ± 0.17	1.70 ± 0.09	1.72 ± 0.16	1.53 ± 0.11	1.66 ± 0.10	1.55 ± 0.08	1.61 ± 0.15	1.68 ± 0.11