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. 2022 Mar 2;34(6):2188–2204. doi: 10.1093/plcell/koac078

Figure 1.

Figure 1

Daytime temperatures affect nighttime hypocotyl growth. A and B, Hypocotyl growth rate measured in Col-0 seedlings during the night (ZT 10 h to ZT 24 h). The seedlings received all possible combinations of temperature during the preceding photoperiod (10°C, 20°C, or 28°C), nighttime temperature (10°C, 20°C, or 28°C), daytime light (A) or daytime shade (B) and either control or EOD FR. The left- and right-hand sides of the symbols indicate daytime and nighttime temperatures, respectively. Box plots show median, interquartile range 1–3 and the maximum–minimum interval of four replicate boxes with seedlings (see Supplemental File S1A for detailed statistics). C, Increase in hypocotyl length measured in Col-0 seedlings during the night (starting at ZT = 10 h), as affected by four combinations of daytime temperatures (10°C or 28°C) and nighttime temperatures (10°C or 28°C). All seedlings received shade during the day and EOD FR. Data are means ± se of nine replicate boxes of seedlings for each time point. The interaction between nighttime and daytime temperatures persists beyond ZT = 14 (see Supplemental File S1B for detailed statistics).