Roles of Higher Plant K+ Channels

Roles of higher plant K+ channels.

Physiological Roles of Inward-Rectifying K+ Channels.

Ca2+ Channels in Higher Plant Cells.

Ca2+ channels have been suggested to play major roles in the initiation of a large number of signal transduction processes in higher plant cells, including bud formation, polar growth, gas exchange regulation, secretion, movements, and light-regulated and hormone-regulated growth and development (Hepler and Wayne, 1985; Leonard and Hepler, 1990). Activation of Ca2+ channels allows transmembrane...

Plant K+ channels: structure, activity and function.

Introduction In plants as in animals, K+ channel activity is the major determinant of cell membrane conductance [1,2]. Kt channels are therefore involved in central physiological processes such as setting the resting cell membrane potential, transducing signals and shaping action-potential waveforms. In addition, in plant cells, K t channel activity is thought to be involved in long-term fluxes...

Phosphatidylinositol 4,5-bisphosphate regulates plant K(+) channels.

Phosphoinositides play an important role in both abiotic and biotic signalling in plants. The signalling cascade may include the production of second messengers by hydrolysis of PtdIns(4,5)P(2). However, increasingly, PtdIns(4,5)P(2) itself is shown to mediate signalling by regulating target proteins. The present mini-review summarizes the experimentally demonstrated effects of PtdIns(4,5)P(2) ...