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Comparison between expected and observed effects of over-expression of γ-ECS and H2S fumigation in poplar
| Overexpression of
γ-ECS
|
H2S Fumigation
|
||||
|---|---|---|---|---|---|
| GSH | SO42− | GSH | SO42− | ||
| Leaves | E | + | − | + | 0 |
| F | + | 0 | + | 0 | |
| Phloem exudate | E | −/0 | − | + | 0 |
| F | + | + | + | 0 | |
| Roots | E | −/0 | − | + | 0 |
| F | + | +/0 | + | 0 | |
| Xylem sap | E | −/0 | + | + | − |
| F | + | + | + | 0 | |
| Sulfate uptake | E | + | − | ||
| F | + | 0 | |||
| Xylem loading | E | + | − | ||
| F | +/0 | − | |||
E, Expected; F, found; +, increasing concentration; 0, unchanged; −, reduced concentration.
