1. "S. epi" written on TSY agar using Staphylococcus epidermidis bacteria; 2. S. epi colonies growing on TSY agar; 3. Streak plate of S. epi on TSY agar, viewed from bottom.
1.Bacterial colonies growing on Mannitol Salt Agar (MSA). Small, white punctiform colonies are Staph.
2. Bacterial colonies growing on MSA. Weak mannitol fermenters on left. Staph epi on right.
3. Mannitol Salt Agar. Left plate is growing mannitol+ pathogen Staphylococcus aureus. Right plate growing mannitol- normal floraStaphylococcus epidermidis.
4 & 5. Mannitol Salt Agar viewed from bottom & top. Yellow side of plate is growing mannitol+ pathogen Staphylococcus aureus. Pink side of plate growing mannitol- normal flora Staphylococcus epidermidis.
6 & 7. S. epi written in Staphylococcus epidermidis and growing on Mannitol Salt Agar.
8. Staphylococcus aureus on Mannitol Salt Agar
9. Staphylococcus aureus plated on Manntiol Salt Agar (left) and MacConkey's Agar (right). Note no growth on MacConkey's.
1, 2, 3 & 4. Staphylococcus bacteria Gram stained and viewed at 1000xTM; 5. Staphylococcus bacterial smear Gram stained and viewed at 100xTM.
Gram Stained Staphylococcus Bacteria (Click on photo to enlarge.)
Staphylococcus Bacteria Colonies on Mannitol Salt (Click on photo to enlarge.)
Staphylococcus Bacteria Colonies on TSY Agar (Click on photo to enlarge.)
You have free access to a large collection of materials used in a college-level introductory microbiology course. The Virtual Microbiology Classroom provides a wide range of free educational resources including PowerPoint Lectures, Study Guides, Review Questions and Practice Test Questions.
The Microbiology Image Library is the largest photo collection on the SPO site. To help you more easily find what you're looking for, select the "See more" link of the sub-topic below that corresponds to your interests or use the search boxes.
The SPO Science Image Library is a continuously growing collection of copyright-free science photographs. If you use one of our free, low-res images, we just ask that you give us credit and provide a link to the SPO website (scienceprofonline.com). Click on photo to enlarge. To save a photo to your computer, right click on it and select "Save".
For those in need of high-resolution images, we will soon be offering hi-res files of many photos in the Science Image Library. Follow us on Twitter @ScienceProfSPO to get updates on new SPO features and products. If you need a high resolution photo now, please contact us.