Table I. Growth rate (biomass accumulation), Glc consumption rate, and biomass composition of Arabidopsis cell suspension cultures grown under control conditions (21°C, no mannitol), at high temperature (29°C), and under hyperosmotic stress (171 mm mannitol)

All values are means ± sd from four replicates. Values indicated in boldface are significantly different (Student’s t test, P < 0.05) from the corresponding value for control cells.

ParameterControl29°CHyperosmotic
Biomass (g dry wt d−1 L−1 culture)2.3 ± 0.10.8 ± 0.10.9 ± 0.2
Glc consumption (g d−1 L−1 culture)4.1 ± 0.23.3 ± 0.11.6 ± 0.5
Biomass composition (%)
    Cell wall43 ± 535 ± 255 ± 2
    Protein20 ± 216 ± 328 ± 4
    Lipid11 ± 210 ± 111 ± 2
    Starch5 ± 0.43 ± 0.45 ± 0.7
    Soluble metabolites14 ± 121 ± 17 ± 1