Seed Science Research 13: 139-153 (2003)
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Distinct expression patterns of ß-1,3-glucanases and
chitinases during the germination of Solanaceous seeds
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Luciana Petruzzelli, Kerstin Müller, Katrin Hermann, Gerhard
Leubner-Metzger
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Table 2. Tissue-specificity of ß-1,3-glucanase (ßGlu) and chitinase (Chn) enzyme activity in Solanaceous seedlings.
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ßGlu (a) |
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Chn (a) |
| Species (b) |
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Root (R) |
Shoot (S) |
R/S ratio |
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Root (R) |
Shoot (S) |
R/S ratio |
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| Pepper |
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3.3±0.6 |
0.1±0.0 |
35 |
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8.2±0.9 |
0.1±0.0 |
159 |
| Tomato |
|
1.0±0.5 |
0.1±0.0 |
20 |
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- - - |
- - - |
- - - |
| Tobacco |
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11.7±1.1 |
2.0±0.6 |
6 |
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31.1±5.5 |
6.8±2.6 |
5 |
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a Mean values ± SE of enzyme activities in pkat/μg protein of four protein samples, each from 10–15 seedling tissues.
b Seedlings from germinated seeds incubated for 150 h (tobacco) or 160 h (pepper, tomato) in continuous light at 24°C.
c Ratio between the specific enzyme activities of the seedling root and shoot tissues. |
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