Nostoc filamentous blue-green alga
Numéro d’image : 11526945
| Light micrograph of Nostoc sp. ,a filamentous blue-green alga or cyanobacterium. The strands of alga are in fact linear colonies of primitive,single- celled,prokaryotic organisms,more closely related to bacteria than to algae. Nostoc has the ability to fix atmospheric nitrogen,thereby playing a major role in soil fertility. It has a wide distribution & is commonly found in soil & on mud,rocks & other plants. It also forms the algal partner of a number of lichens. Blue green algae are considered to be exceedingly primitive organisms,dating back to pre-Cambrian times. Magnificaton: x250 at 35mm size | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Nuridsany, Claude / Perennou, Maria |
| Taille de l’image : | 3415 px × 5114 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : |
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