FIGURE LEGENDS
Fig. 1 . Deuterium NMR spectrum of glucose derived from
structural carbohydrates of S. fuscum . The integral of each peak
is proportional to the abundance of the deuterium (D) isotopomers at the
corresponding position in the glucose molecule (H1 – H6). The ratio of
the isotopomer abundance of D6S and
D6R corresponds to the
photorespiration/photosynthesis ratio (Ehlers et al ., 2015).
Fig. 2 .
D6S /D6R ratios and
biomass production of S. fuscum incubated in the growth chambers
at indicated atmospheric CO2, temperature, water table
(WT) and light intensity settings. Solid and striped bars indicate low
and high atmospheric CO2, respectively. LT and HT
indicate low and high temperature, and LL and HL low and high light,
respectively. (A)
D6S /D6R isotopomer
ratios reflecting the photorespiration/photosynthesis ratio and (B)
daily biomass production during the two-month incubation period. Error
bars indicate ± SE, n = 3. Different letters above error bars indicate
significant differences (P < 0.05) according to
Fisher’s least significant difference post-hoc test with
Benjamini-Hochberg correction.
Fig. 3 . Physiological response variables of S. fuscumincubated in the growth chambers at indicated atmospheric
CO2, temperature, water table (WT) and light intensity
settings. Solid and striped bars indicate low and high atmospheric
CO2, respectively. LT and HT indicate low and high
temperature, and LL and HL low and high light, respectively. (A)
whole-tissue δ13C values and (B) chloroplastic to
ambient CO2(c c/c a) ratios, (C)
whole-tissue C/N ratio and (D) N contents, (E) biomass density in total
biomass dry weight per unit volume and (F) moss height increment. Error
bars indicate ± SE, n = 3. Different letters above error bars indicate
significant differences (P < 0.05) according to
Fisher’s least significant difference post-hoc test with
Benjamini-Hochberg correction.
Fig. 4 .
D6S /D6R ratios,
biomass production, density and height increment of S. majusincubated in the growth chambers at indicated atmospheric
CO2 and water table (WT) settings. Data were obtained
for the high temperature and low light treatment. Solid and striped bars
indicate low and high atmospheric CO2, respectively. (A)
D6S /D6R isotopomer
ratios reflecting the photorespiration/photosynthesis ratio, (B) daily
biomass production during the two-month incubation period, (C) biomass
density in total biomass dry weight per unit volume and (D) moss height
increment. Error bars indicate ± SE, n = 3. Different letters above
error bars indicate significant differences (P < 0.05)
according to student’s t-test.