Pinna, M. C. and Bauduin, Pierre and Touraud, Didier and Monduzzi, M. and Ninham, B. W. and Kunz, Werner (2005) Hofmeister effects in biology: Effect of choline addition on the salt-induced super activity of horseradish peroxidase and its implication for salt resistance of plants. JOURNAL OF PHYSICAL CHEMISTRY B, 109 (34). pp. 16511-16514. ISSN 1520-6106,
Full text not available from this repository. (Request a copy)Abstract
The effect of choline addition on the salt-induced super activity of horseradish peroxidase (HRP) is investigated. HRP is presented in the literature as an efficient H2O2 scavenger, and choline is the precursor of glycine betaine, a strong osmoprotectant molecule. Both the regulations of H2O2 and of osmoprotectant concentrations are implicated in plants in order to counteract salt-induced cell damage. For the oxidation of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), sulfate anions were found to play a crucial role in the increase of HRP activity. This induced super activity can be strongly reduced by adding choline chloride. The phenomena provide an example of physicochemical Hofmeister effects playing a central regulatory role in an important biological system.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | STRESS; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Werner Kunz |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 30 Apr 2021 05:21 |
| Last Modified: | 30 Apr 2021 05:21 |
| URI: | https://pred.uni-regensburg.de/id/eprint/35702 |
Actions (login required)
 |
View Item |
