Spore – dormant resistant structure formed during periods of environmental stress Cryptobiotic state - no measurable metabolic activity 2 Important Genera:

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Presentation transcript:

Spore – dormant resistant structure formed during periods of environmental stress Cryptobiotic state - no measurable metabolic activity 2 Important Genera: Bacillus Bacillus anthracis - anthrax Bacillus cereus - gastroenteritis (food poisoning) Clostridium Clostridium tetani - tetanus (lock jaw) Clostridium botulinum - botulism Clostridium perfringens - gas gangrene

Schaeffer-Fulton Endospore Stain Central Spore

Schaeffer-Fulton Endospore Stain Terminal Spore

Schaeffer-Fulton Endospore Stain Terminal with enlarged sporangium

Clostridium tetani

Clostridium botulinum

Clostridium perfringens