Light micrograph of Nostoc sp.,a blue-green nitrogen-fixing algae which grows in the absence of combined nitrogen and converts gaseous nitrogen into a usable form. Useful in enriching the soil,for instance in rice culture,it is a filamentous organism which forms chains of individual creatures. Aggregations of Nostoc form mucilagin- ous masses,usually seen resting on the soil. It is also being investigated for possible applications in biotechnology. Phase contrast micrograph. Magnification: X 40 at 35mm size,X 80 at 6x7cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Stammers, Sinclair |
Taille de l’image : | 3564 px × 2400 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |