Lecture on Aerobic Gram-Positive Bacilli

Flashcards to help students understand key concepts related to aerobic gram-positive bacilli and their associated diseases.

Corynebacterium diphtheriae

The most significant pathogen causing diphtheria, characterized by the production of a potent toxin.

Diphtheria Toxin

Major virulence factor of C. diphtheriae, inhibits protein synthesis by targeting elongation factor 2.

Listeria monocytogenes

A pathogenic bacterium capable of causing listeriosis, particularly dangerous for neonates and immunocompromised individuals.

Erysipelothrix rhusiopathiae

A non-spore-forming, catalase-negative bacterium known for causing erysipeloid and septicemia.

Bacillus anthracis

The causative agent of anthrax, notable for its virulence factors including a capsule and several toxins.

Gram-Positive Bacilli

A group of bacteria largely characterized by their ability to retain the crystal violet stain used in the Gram staining procedure.

Catalase Test

A test used to determine the presence of the enzyme catalase, differentiating between staphylococci (catalase-positive) and streptococci (catalase-negative).

Non-spore-forming

Bacteria that do not form spores, including many pathogenic species such as Corynebacterium and Erysipelothrix.

Opportunistic pathogens

Microorganisms that typically do not cause disease in healthy individuals but can lead to infection in those with compromised immune systems.

MALDI-TOF

A mass spectrometry technique used for identifying bacteria and yeasts based on their unique protein profiles.