bacteria on earth bacteria are in every environment imaginable!
Post on 20-Dec-2015
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Bacteria on Earth
Bacteria are in every environment imaginable!
Bacterial Morphology
•largest – 50 μm indiameter
• smallest – 0.3 μm in diameter
Figure 3.3
Thiomargarita namibiensis
Gram Staining
Gram Staining
Gram-Positive
Peptidoglycan
Cell Membrane
Peptidoglycan
Cytoplasmic membrane
Another cell
Gram-Negative
Outer Membrane
MembranePeptidoglycan
Peptidoglycan
Periplasm
Periplasmic space
Figure 3.4 – Effect of Pencillin
Endospore
Bacterial Reproduction
Treponema denticola
Predatory Bacteria
Bdellovibrio bacteriovorus attacking Spirillum serpens (arrow).
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