Image: Agarplate redbloodcells edit

Description: Sheep blood is added to growth media to enhance the nutrients available for bacterial growth. Laboratory scientists grow various bacteria on this medium as well as numerous other media, in order to help assess infections in humans and animals. The image on the left shows growth of a beta-hemolytic streptococcus. The bacterium has produced a hemolytic compound that has lysed the red blood cells surrounding each colony. The plate was properly streaked to attain isolated colonies. The plate on the right is growing a Staphylococcus species. The plate was streaked too heavily, so isolated colonies were not attained.
Title: Agarplate redbloodcells edit
Credit:   This image was released by the National Cancer Institute, an agency part of the National Institutes of Health, with the ID 2230 (image) (next). This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing for more information. English | Français | +/−
Author: Bill Branson – (Edited by Fir0002)(Edited by [User:Drhx])
Permission: This image is a work of the National Institutes of Health, part of the United States Department of Health and Human Services. As a work of the U.S. federal government, the image is in the public domain. In addition to the implicit public domain status provided as a work of the United States Government, the National Cancer Institute has also explicitly licensed this photo into the public domain: http://visualsonline.cancer.gov/about.cfm
Usage Terms: Public domain
License: Public domain
Attribution Required?: No