Kroeger, Nils and Deutzmann, Rainer and Bergsdorf, Christian and Sumper, Manfred (2000) Species-specific polyamines from diatoms control silica morphology. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 97 (26). pp. 14133-14138. ISSN 0027-8424
Full text not available from this repository. (Request a copy)Abstract
Biomineralizing organisms use organic molecules to generate species-specific mineral patterns. Here, we describe the chemical structure of long-chain polyamines (up to 20 repeated units), which represent the main organic constituent of diatom biosilica. These substances are the longest polyamine chains found in nature and induce rapid silica precipitation from a silicic acid solution. Each diatom is equipped with a species-specific set of polyamines and silica-precipitating proteins, which are termed silaffins. Different morphologies of precipitating silica can be generated by polyamines of different chain lengths as well as by a synergistic action of long-chain polyamines and silaffins.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | WALL MORPHOGENESIS; ACID; |
| Subjects: | 500 Science > 570 Life sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Alumni or Retired > Prof. Dr. Manfred Sumper Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Biochemie I > Prof. Dr. Rainer Deutzmann |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Mar 2022 14:19 |
| Last Modified: | 08 Mar 2022 14:19 |
| URI: | https://pred.uni-regensburg.de/id/eprint/41972 |
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