Decomposers and root feeders interactively affect plant defence in Sinapis alba

The H+/CI' Symporter in Root-Hair Cells of Sinapis alba'

In root-hair cells of Sinapis alba, cytosolic pH, cytosolic [Cl-1, membrane potential, and membrane resistance have been measured to investigate proton-driven CItransport across the plasma membrane. Rapid lowering of the external pH transiently increased cytosolic [Cl-] and acidified the cytoplasm. To an abrupt increase in external [Cl-] the cells reacted with a rapid initial depolarization and...

Circadian Rhythms and the Induction of Flowering in Sinapis alba.

Cytokinin Fluxes during Floral Induction in the Long Day Plant Sinapis alba L.

Sinapis alba is a long-day (LD) plant that can be induced to flower by a single LD. A number of changes normally occurring in the meristem of plants subjected to the LD can be produced in short day by a single application of a cytokinin to the apical bud. However, flower buds are not produced indicating that evocation by the cytokinin is only partial. In this work, the cytokinin content of root...

Dark Reversion of Phytochrome in Sinapis alba L.

Phytochrome in Sinapis alba L. (white mustard) seedlings undergoes both decay and reversion after an exposure to red light. This is typical of other crucifers and of dicotyledons in general. In the presence of sodium azide, decay is inhibited, and reversion continues at about the same rate as in buffer alone. The reversion has been demonstrated both in cotyledon plus hypocotyl hook and in hypoc...

Molecular Composition of Glutamine Synthetase of Sinapis alba L

Matthias Höpfner , Georg Reifferscheid, and Aloysius Wild Institut für Allgemeine Botanik der Johannes Gutenberg-Universität, Saarstraße 21, D-6500 Mainz, Bundesrepublik Deutschland Z. Naturforsch. 43c, 194-198 (1988); received November 26, 1987 Active Centers, Enzyme Purification, Enzyme Structure, Glufosinate, Glutamine Synthetase, Phosphinothricin Chloroplastic glutamine synthetase of Sinapi...