Seed Science Research 13: 139-153 (2003)

Distinct expression patterns of ß-1,3-glucanases and chitinases during the germination of Solanaceous seeds

Luciana Petruzzelli, Kerstin Müller, Katrin Hermann, Gerhard Leubner-Metzger

Table 2. Tissue-specificity of ß-1,3-glucanase (ßGlu) and chitinase (Chn) enzyme activity in Solanaceous seedlings.

ßGlu (a) Chn (a)
Species (b) Root (R) Shoot (S) R/S ratio Root (R) Shoot (S) R/S ratio
Pepper 3.3±0.6 0.1±0.0 35 8.2±0.9 0.1±0.0 159
Tomato 1.0±0.5 0.1±0.0 20 - - - - - - - - -
Tobacco 11.7±1.1 2.0±0.6 6 31.1±5.5 6.8±2.6 5

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.

Article in PDF format (780 KB)
Abstract               Fig. 1          Fig. 2          Fig. 3          Fig. 4     
                            Table 1          Table 2          Table 3
 
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