Table 3.
The concentrations of water-soluble Fe, apoplastic Fe, cell wall Fe, pectin Fe, and hemicellulose Fe in roots of kiwifruit plants treated with -Fe, +Bic or -Fe+Bic in solution culture for 35 days. Values are means of five replicates ± SE. Different letters indicate significant differences among the treatments for each given parameter at p < 0.05. Values inside parentheses represent the percent change (%) in treated plants when compared with the control ones. FW, fresh weight.
| Water-Soluble Fe (mg/kg FW) | Apoplastic Fe (Fe2+ nmol/g/h) | Cell Wall Fe (mg/kg Cell Wall) | Pectin Fe (mg/kg Cell Wall) | Hemicellulose Fe (mg/kg Cell Wall) | |
|---|---|---|---|---|---|
| Control | 1.7 ± 0.3a | 28.3 ± 1.4b | 3907.5 ± 300.4a | 490.2 ± 103.7a | 358.9 ± 45.1a |
| -Fe | 0.5 ± 0.1b | 20.3 ± 2.7b | 572.5 ± 42.1c | 5.9 ± 0.6b | 44.7 ± 5.2b |
| (−72.7) | (−28.4) | (−85.3) | (−98.8) | (−87.6) | |
| +Bic | 2.0 ± 0.2a | 46.0 ± 4.5a | 1186.2 ± 115.4b | 2.1 ± 0.1b | 71.3 ± 8.5b |
| (+12.6) | (+62.1) | (−69.6) | (−99.6) | (−80.1) | |
| -Fe+Bic | 0.3 ± 0.1b | 29.6 ± 6.6b | 527.6 ± 49.5c | 1.6 ± 0.7b | 45.5 ± 5.9b |
| (−80.9) | (+4.6) | (−86.5) | (−99.7) | (−87.3) |