Table 5.
Significant correlations between glycolytic enzyme activities and glycolytic pathway metabolites, ATP:ADP ratio, and NADH:NAD+ ratio in roots during 60 days storage (α = 0.05).
| Compound | Positive correlations | Negative correlations |
|---|---|---|
| HK | G1P, trioseP | NADH |
| FK | – | – |
| UDPase | ATP:ADP | F6P |
| G6PI | – | – |
| PGM | – | – |
| PFK | PEP | |
| PFP | Sucrose, ATP | Glucose, NADH, NADH:NAD+ |
| ALD | – | – |
| TPI | – | – |
| GAPDH | trioseP | NADH |
| PGK | NADH:NAD+, UDP | Sucrose, Pyr |
| PGlyM | – | – |
| ENO | – | – |
| PK | Sucrose, NAD+ | UDP, NADH:NAD+ |
| PEPase | Pyr | – |
Roots were stored 10 days at 10°C and 90 ± 5% RH, then stored at 4°C, 90 ± 5% RH for 50 days. Abbreviations used for enzymes are defined in Table 1. Abbreviations used for metabolites are defined in Table 3. ATP:ADP ratio is used as a measure of cellular energy status. NADH:NAD+ ratio is used as a measure of cellular redox status. – is used to denote the absence of any significant correlations. Correlation coefficients and P-values are available in Supplementary Table S5.