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- Appenroth, K.J.; Gabrys, H.; Scheuerlein, R.W.
- Planta 1999 v.208 no.4 pp. 583-587
- Spirodela polyrhiza, etc ; shoots; phytochrome; germination; cations; light; culture media; magnesium; barium; strontium; lanthanum; ion transport; inorganic ions; calcium; Show all 14 Subjects
- ... The light-dependent germination response of turions (resting fronds) is mediated by phytochrome and requires the presence of Ca(2+) in the medium (K.-J. Appenroth and H. Augsten, 1990, Photochem. Photobiol. 52: 61-65). The Ca(2+) requirement of germination is apparent only in the presence of exogenous Mg(2+). A competitive ion antagonism was demonstrated between Ca(2+) and Mg(2+) in this physiolog ...