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Endospore Stain Bacteria Images
Science Image Library
Endospore Stain
from Science Prof Online
All five photos show endospore stain of endospore producing bacteria. Endospores stain green and vegetative, living cells stain red / pink.
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.
Endospore Stain Positive Result Photos (Click on image to enlarge.)
Endospore Stain Negative Result Photos (Click on image to enlarge.)
Endospore stain of non-endospore producing bacteria. Note lack of green endospores.
Endospore Staining Procedure Photos (Click on image to enlarge.)
1, 2 & 3. Malachite green staining step of endospore stain procedure. Steam from heated water bath supplies heat to drive green stain into endospores; 4 & 5. Safranin couterstain of endospore staining procedure; 6. Endospore stained slide with + control (Bacillus) on left, negative control (E. coli) on right and unknown in center.
Page last updated 10/2014
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How to Do an
Endospore Bacterial Stain
How to Prepare a Bacterial Smear for Endospore Staining
Endospore Bacterial Smear & Staining Procedure Videos
SCIENCE VIDEOS
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Helpful Links on Endospores & Endospore Staining
- Bacterial Endospore Formation animated tutorial and quiz from McGraw-Hill.
- What Is a Bacterial Endospore? class notes article from Science Prof Online.
- Differential Staining of Bacteria Laboratory Exercise Main Page from the Virtual Microbiology Classroom.
Gram stained, Acid-fast stained and endospore stained slide (left to right), each with bacterial controls (knowns) on outside and unknown bacterial smear in center.
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