Petri dish culture of a nitrogen fixing bacteria
Numéro d’image : 11864208
| Petri dish culture of the bacterium Rhizobium leguminosarum,a nitrogen fixing bacteria,growing on YMA medium (yeast manitol medium). The picture shows the pattern of streaking used to isolate single colonies. Parallel lines are drawn across the culture using a platinum wire loop as seen here. These lines are crossed and recrossed at different angles,diluting the culture until colonies originally formed around a single bacterium are isolated. The small blobs in the foreground are single colonies. Streaking is an essential technique for isolating particular strains or mutant bacteria in mixed cultures | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Burgess, Dr. Jeremy |
| Taille de l’image : | 4214 px × 4240 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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