False-colour scanning electron micrograph (SEM) of a nitrogen-fixing bacterium,Rhizobium legumino- sarum,on the root hair of a pea plant,Pisum sativum. Rhizobium is a free-living soil bacterium for most of its life,but at times forms a symbiotic association with the roots of leguminous plants. In return for breaking down atmospheric nitrogen & converting it into a form the plant can use,the bacterium gains access to the plant's carbohydrate food stores & is kept safe in the plant's tissue. Magnification: x9285 at 35mm size,x14,900 at 6x6cm size. (More detailed information available on request). Full colour version: green on yellow. BW original is B238/23M. Reference: MICROCOSMOS,figure 5.18,page 98. See | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Burgess, Dr. Jeremy |
Taille de l’image : | 4002 px × 4002 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |