Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Raghothama, K. G.
Right arrow Articles by Poovaiah, B. W.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Raghothama, K. G.
Right arrow Articles by Poovaiah, B. W.
Agricola
Right arrow Articles by Raghothama, K. G.
Right arrow Articles by Poovaiah, B. W.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Plant and Cell Physiology, 1985, Vol. 26, No. 8 1565-1572
© 1985

Article

Stage-Specific Changes in Calcium-Regulated Protein Phosphorylation in Developing Tomato Fruits1,2

K. G. Raghothama, K. Veluthambi and B. W. Poovaiah3

Department of Horticulture and Landscape Architecture, Washington State University Pullman, WA 99164-6414, U.S.A.

3 To whom requests for reprints should be addressed

The role of calcium and calmodulin in the in vitro phosphorylation of soluble and membrane proteins was studied in relation to growth and development of tomato fruits. Calcium at micromolar concentrations promoted the phosphorylation of both soluble and membrane proteins. The calmodulin antagonists, chlorpromazine and trifluoperazine, inhibited the phosphorylation of several proteins. Qualitative changes were observed in the pattern of protein phosphorylation at different developmental stages. There was a general decrease in protein phosphorylation towards ripening. These results indicated that calcium may be involved in the regulation of phosphorylation of different proteins at different stages of fruit development.

1 Scientific Paper No. 7149, College of Agriculture and Home Economics, Washington State University, Pullman, Project 0321.

2 Supported in part by a grant from the National Science Foundation. DCB-8502215.

(Received May 14, 1985; Accepted September 12, 1985)
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.