ROLE OF CA2-POTENTIAL IN INTACT NITELLA-FLEXILIS( ON TRIGGERING TONOPLAST ACTION)

Authors
KIKUYAMA M SHIMMEN T
Citation
M. Kikuyama et T. Shimmen, ROLE OF CA2-POTENTIAL IN INTACT NITELLA-FLEXILIS( ON TRIGGERING TONOPLAST ACTION), Plant and Cell Physiology, 38(8), 1997, pp. 941-944
Citations number
20
Categorie Soggetti
Plant Sciences
Journal title
Plant and Cell Physiology → ACNP
ISSN journal
00320781
Volume
38
Issue
8
Year of publication
1997
Pages
941 - 944
Database
ISI
SICI code
0032-0781(1997)38:8<941:ROCIIN>2.0.ZU;2-0
Abstract
Sensitive aequorin was microinjected into the cytoplasm of Nitella fle xilis to study the role of Ca2+ in the generation of the tonoplast act ion potential. The temporal relation between the increase in cytoplasm ic Ca2+ and the tonoplast action potential suggested that tonoplast ac tion potential is triggered by an increase in cytoplasmic Ca2+ This is also supported by the fact that Mn2+, extracellularly applied, inhibi ted both the increase in cytoplasmic Ca2+ and the generation of the to noplast action potential.