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Calcium and protein phosphorylation in the transduction of gravity signal in corn rootsThe involvement of calcium and protein phosphorylation in the transduction of gravity signal was studied using corn roots of a light-insensitive variety (Zea mays L., cv. Patriot). The gravitropic response was calcium-dependent. Horizontal placement of roots preloaded with 32P for three minutes resulted in changes in protein phosphorylation of polypeptides of 32 and 35 kD. Calcium depletion resulted in decreased phosphorylation of these phosphoproteins and replenishment of calcium restored the phosphorylation.
Document ID
20040112132
Acquisition Source
Kennedy Space Center
Document Type
Reprint (Version printed in journal)
Authors
Friedmann, M.
(Washington State University Pullman 99164-6414)
Poovaiah, B. W.
Date Acquired
August 21, 2013
Publication Date
January 1, 1991
Publication Information
Publication: Plant & cell physiology
Volume: 32
Issue: 2
ISSN: 0032-0781
Subject Category
Life Sciences (General)
Funding Number(s)
CONTRACT_GRANT: DCB-8801860
CONTRACT_GRANT: NAG10-0061
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Number 40-50
NASA Discipline Plant Biology
NASA Program Space Biology
Non-NASA Center

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