Plant Molecular Biology 38: 785-795 (1998)
Ethylene responsive element binding protein (EREBP) expression
and the transcriptional regulation of class I ß-1,3-glucanase
during tobacco seed germination
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Figure 1. The effect of ethylene treatment on ß-1,3- glucanase accumulation and germination of GLBGUS tobacco seeds in the light. Populations of 100- 200 seeds were imbibed in continuous light either in the absence (open symbols) or presence of 100 ppm ethylene (filled symbols). Means values ± SE are presented for two independent experiments each with at least two samples (triplicate samples for 48, 54, and 63 h). When error bars are not shown, the SE values were ± 2 in (a) and ± 0.1 in (b). (a) The incidence of endosperm rupture. The onset of endosperm rupture was consistently earlier in populations of ethylene-treated seeds in the two independent experiments. (b) The accumulation of ß- 1,3-glucanase, expressed as pkat enzyme activity / seed and Glb-promoter activity expressed as fkat GUS / seed. Hyperlink to drawing of the tobacco class I ß-1,3-glucanase B (GLB) gene promoter |
| Article in PDF format (2.1 MB) | Abstract Fig. 1 Fig. 2 Fig. 3 Table 1 GLB-promoter |
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