Foot bacteria. Scanning electron micrograph (SEM) of bacteria that live on human feet. Such bacteria metabolise sweat and other substances on the skin. Brevibacterium sp. are considered a major cause of foot and shoe odour because they ingest dead skin on the feet and, in the process, convert the amino acid methionine into methanethiol, a colourless gas with a distinctive putrid smell that has a sulfuric aroma. The dead skin that fuels this process is especially common on the soles and between the toes. Brevibacterium also give cheeses their characteristic smell. Magnification: x13000 when printed 10 centimetres wide. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gschmeissner, Steve |
Taille de l’image : | 4550 px × 3928 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |