Release of glucosylglycerol from the cyanobacterium Synechocystis spec. SAG 92.79 by hypoosmotic shock
| Autor: | Martin Hagemann, E. Libbert, Sabine Fulda |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Cyanobacteria
chemistry.chemical_classification Chromatography biology Osmotic shock Osmotic concentration Chemistry Synechocystis General Medicine biology.organism_classification Biochemistry Microbiology Thin-layer chromatography Amino acid Shock (circulatory) Genetics medicine medicine.symptom Molecular Biology Bacteria |
| Zdroj: | Archives of Microbiology. 153:405-408 |
| ISSN: | 1432-072X 0302-8933 |
| DOI: | 10.1007/bf00249013 |
| Popis: | When cells of Synechocystis, adapted to 684 mmol/l NaCl, were exposed to hypoosmotic shock by reducing NaCl concentration to more than 250 mmol/l, significant amounts of organic material were liberated which could be increased by increasing shock strength. After maximal hypoosmotic shock (684 mmol/l→ 2 mmol/l NaCl) 40–50% of photosynthetically labelled organic material occurred in the surrounding medium. The main compound exudates was the osmoprotective compound glucosylglycerol. Minor exudates were amino acids, organic acids and carbohydrates. In contrast a hyperosmotic shock (2 mmol/l→684 mmol/l NaCl) liberated only one fourth of the amount liberated by a hypoosmotic shock. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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