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Galacturonomannan and Golgi-derived membrane linked to growth and shaping of biogenic calciteThe coccolithophores are valuable models for the design and synthesis of composite materials, because the cellular machinery controlling the nucleation, growth, and patterning of their calcitic scales (coccoliths) can be examined genetically. The coccoliths are formed within the Golgi complex and are the major CaCO(3) component in limestone sediments-particularly those of the Cretaceous period. In this study, we describe mutants lacking a sulfated galacturonomannan and show that this polysaccharide in conjunction with the Golgi-derived membrane is directly linked to the growth and shaping of coccolith calcite but not to the initial orientated nucleation of the mineral phase.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Marsh, M. E.
(The University of Texas Dental Branch 6516 M. D. Anderson Blvd., Houston, TX 77030, United States)
Ridall, A. L.
Azadi, P.
Duke, P. J.
Date Acquired
August 21, 2013
Publication Date
July 1, 2002
Publication Information
Publication: Journal of structural biology
Volume: 139
Issue: 1
ISSN: 1047-8477
Subject Category
Life Sciences (General)
Distribution Limits
NASA Discipline Cell Biology
Non-NASA Center

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