Hormonal and molecular events during seed dormancy release and germination (2003)

Gerhard Leubner-Metzger

Universität Freiburg, Institut für Biologie II, Botanik, Schänzlestr. 1, D-79104 Freiburg, Germany

Book chapter for "The Biology of Seeds: Recent Research Advances", pp. 101-112
K.J. Bradford, D. Come, G. Nicolas and H. Pritchard (eds.), CAB International

Based on the invited lecture of Gerhard Leubner-Metzger
Seventh International Workshop on Seeds, Salamanca, Spain, 12-16 May 2002
Symposium Seed Dormancy and Germination

Table of Contents:

  1. Introduction
  2. Testa-imposed dormancy is regulated by ABA-GA interaction
  3. Involvement of ß-1,3-glucanase in the after-ripening-mediated promotion of tobacco testa and endosperm rupture
  4. Endosperm-imposed dormancy is regulated by antagonistic interactions of GA, ethylene and BR with ABA
  5. References

ABA = abscisic acid; BR = brassinosteroids; GA = gibberellin

Figure 1. The effect of after-ripening and sense- ßGlu I transformation on testa rupture and endosperm rupture during the germination of tobacco seeds.
see hyperlink to Leubner-Metzger et al. (2002) Figure related to Table 1

Figure 2. A speculative model relating afterripening, class I ß-1,3-glucanase (ßGlu I) and endosperm rupture of tobacco.
see hyperlink to Leubner-Metzger and Meins (2000) Figure 2

Figure 3. Hormonal interactions during tobacco seed after-ripening, dormancy release and germination and their effects on testa rupture and endosperm rupture.
see hyperlink to Finch-Savage and Leubner-Metzger et al. (2006) Figure 2

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