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- Title
Is cytoplasmic pH involved in the regulation of cell cycle in plants?
- Authors
Pichon, Olivier; Desbiez, Marie-Odile
- Abstract
Modifications of cytoplasmic pH has biological significance in animal and plant cell development. Many observations suggest an important function of cytoplasmic pH in mitotic signalling in animal cells. In Bidens pilosa cultivated under white light, acidification of cytoplasm, observed after mechanical trauma, is associated with an inhibition of DNA synthesis and a decrease in mitotic frequency. In contrast, in Bidens pilosa cultivated under blue light, mechanical stimulation induces an increase of cytoplasmic pH and stimulation of DNA duplication and mitotic activity. A correlation has been established between transient variations of cytoplasmic pH and rapid modification in cell development. The critical role of cytoplasmic pH in the regulation of the cell cycle in plants is discussed.
- Subjects
HYDROGEN-ion concentration; CYTOPLASM; CELL cycle; BIDENS pilosa; GROWTH factors; CELL membranes; DNA
- Publication
Physiologia Plantarum, 1994, Vol 92, Issue 2, p261
- ISSN
0031-9317
- Publication type
Article
- DOI
10.1111/j.1399-3054.1994.tb05335.x