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Role of calcium in signal transduction of Commelina guard cells

Abstract:

The role of cytosolic Ca2+ in signal transduction in stomatal guard cells of Commelina communis was investigated using fluorescence ratio imaging and photometry. By changing extracellular K+, extracellular Ca2+, or treatment with Br-A23187, substantive increases in cytosolic Ca2+ to over 1 micromolar accompanied stomatal closure. The increase in Ca2+ was highest in the cytoplasm around the vacuole and the nucleus. Similar increases were observed when the cells were pretreated with ethylenegly...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1105/tpc.3.4.333

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Plant Sciences
Role:
Author
Agricultura1 and Food Research Council More from this funder
Science and Engineering Research Council More from this funder
Gatsby Foundation More from this funder
Publisher:
American Society of Plant Biologists Publisher's website
Journal:
Plant Cell Journal website
Volume:
3
Issue:
4
Pages:
333-344
Publication date:
1991-04-01
DOI:
EISSN:
1532-298X
ISSN:
1040-4651
Source identifiers:
32213
Language:
English
Pubs id:
pubs:32213
UUID:
uuid:78191b51-c7bf-412b-9c56-4257f6ffd0aa
Local pid:
pubs:32213
Deposit date:
2012-12-19

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