Gram-positive bacteria,light micrograph. These are bacilli (rod-shaped) bacteria. Gram staining divides bacteria into two groups (Gram-positive or Gram-negative) based on the chemical and physiological properties of their cell walls. Gram-positive bacteria retain the crystal violet dye during the Gram stain process and so appear blue or violet under a microscope. Gram-negative bacteria appear red or pink. Magnification: x2800 when printed at 10 centimetres wide | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Green, Richard J. |
Taille de l’image : | 3417 px × 2563 px |
Model Release : | Non requis |
Property Release : | Non requis |
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