Effect of abiotic factors on the unique glitter-like iridescence of Cellulophaga lytica
| Autor: | Eric Rosenfeld, Pauline Marie, Betty Kientz |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Biotope
Abiotic component Light Physiological significance Temperature Color Biology Microbiology Bacterial Load Culture Media Iridescence Oxygen Glitter Species Specificity Stress Physiological Cellulophaga lytica Cell density Botany Genetics Seawater Stress conditions Water Microbiology Flavobacteriaceae Molecular Biology Gravitation |
| Zdroj: | FEMS Microbiology Letters. 333:101-108 |
| ISSN: | 0378-1097 |
| Popis: | Iridescence is a property of structural color that has been poorly documented in the prokaryotic kingdom. We recently isolated a Cellulophaga lytica strain that exhibits, on solid media, a unique intense glitter-like iridescence in reflection. Iridescence of C. lytica CECT 8139 was optically and physically characterized but physiological significance of the phenomenon was not. In the present work, we investigated the effect of key abiotic factors on C. lytica's growth and iridescence. Special attention was paid to conditions that mimic rocky shore ecosystem, the natural biotope of C. lytica. We found that C. lytica's iridescence required the presence of seawater. The phenomenon was not influenced by light exposure or plate orientation during growth. Cellulophaga lytica's iridescence occurred under a wide range of culture conditions notably under psychrophilic, halophilic, and hydric stress conditions. Changes in colonies' colors (blue, violet, red, yellow, and green) were linked to cell density. These data indicate that iridescence is induced under conditions that mimic the natural biotope of C. lytica. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text