1. Limnological Institute; University of Konstanz; Mainaustrasse 252 78464 Konstanz Germany
2. University of Bordeaux; Avenue des Facultés 33405 Talence Cedex France
3. Department of Botany; Faculty of Science; University of South Bohemia; Branisovska 31 CZ-370 05 Ceske Budejovice Czech Republic
4. MOE Key Laboratory of Cell Activities and Stress Adaptations; School of Life Science; Lanzhou University; Lanzhou 730000 China
5. The James Hutton Institute; Craigiebuckler Aberdeen AB15 8QH UK
6. INRA; USC Agripop (CEBC-CNRS); F-79360 Beauvoir sur Niort France
7. CEBC-CNRS (UPR 1934); F-79360 Beauvoir sur Niort France
8. Department of Biology; University of Pennsylvania; Philadelphia PA 19104-6018 USA
9. University of Bordeaux 1; U.M.R. 5805 EPOC; Avenue des Facultés 33405 Talence Cedex France