Role of Membrane-bound, Fixed-charge Changes in Phytochrome-mediated Mung Bean Root Tip Adherence Phenomenon 12
AUTOR(ES)
Racusen, Richard H.
RESUMO
The movement of cells and cell fragments in an electric field provided a means for determining the nature of cellular surface charges. We found that changes in ionic strength and particularly changes in Ca2+ and H+ in the bathing medium cause changes in the surface charges on the root cap cells in the absence of red light. Red light-induced charge changes are demonstrable only on root cap cells and are reversible with far red light. By osmotically separating the membrane from the wall, we demonstrated that both light-induced and ionically mediated charge changes are associated with the cell membrane and not the cell wall.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=541644Documentos Relacionados
- Indoleacetic Acid and Abscisic Acid Antagonism: I. On the Phytochrome-Mediated Attachment of Mung Bean Root Tips on Glass 1
- Rapid Phytochrome-mediated Changes in Adenosine 5′-Triphosphate Content of Etiolated Bean Buds 1
- Phytochrome-Mediated Repression of Enzyme Synthesis (Lipoxygenase): A Threshold Phenomenon*
- Phytochrome-mediated Electric Potential Changes in Oat Seedlings 1
- Phytochrome Control of Another Phytochrome-mediated Process 1