Photophysiology of Turion Germination in Spirodela polyrhiza (L. ) SCHLEIDEN. Iv. Importance of Calcium and Calmodulin
β Scribed by Klaus-J. Appenroth; Reinhard Klinger; Reinhard Wetzker; Helmut Augsten
- Book ID
- 114022543
- Publisher
- Elsevier
- Year
- 1990
- Weight
- 695 KB
- Volume
- 186
- Category
- Article
- ISSN
- 0015-3796
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Red-light-induced germination (via phytochrome) of turions of Spirodela polyrhiza (L.) Schleiden, strain SJ, showed an absolute requirement for exogenously applied calcium (Appenroth et al. 1990b, Biochem. Physiol. Pflanzen 186, 209-219). With calcium step-up experiments (from 0.9 ΞΌM to 1 mM Ca(2+))
The effect of gibberellic acid (GA,), exogenously applied in the range 1O-8-1O-4 M, on the germination of turions of Spirodela polyrhiza grown in continuous white light (fluorescence lamps) or in darkness (etiolated turions) was investigated. The germination was studied in darkness, after a short re