Download Gram-Negative Bacteria - Mrs. Yu`s Science Classes

yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Small intestinal bacterial overgrowth wikipedia, lookup

Cyanobacteria wikipedia, lookup

Phage therapy wikipedia, lookup

Probiotic wikipedia, lookup

Biofilm wikipedia, lookup

Unique properties of hyperthermophilic archaea wikipedia, lookup

Carbapenem-resistant enterobacteriaceae wikipedia, lookup

Quorum sensing wikipedia, lookup

Escherichia coli wikipedia, lookup

Bacteriophage wikipedia, lookup

Skin flora wikipedia, lookup

Neisseria meningitidis wikipedia, lookup

Trimeric autotransporter adhesin wikipedia, lookup

Human microbiota wikipedia, lookup

Bacteria wikipedia, lookup

Bacterial cell structure wikipedia, lookup

Bacterial taxonomy wikipedia, lookup

Bacterial morphological plasticity wikipedia, lookup

Ellim Kim
What is
Gram-Negative Bacteria?
Violet = gram-positive
Red = gram-negative
Bacteria (Kingdom: Eubacteria) that do not
retain crystal violet dye in the Gram staining
Gram staining differentiates bacteria by the
chemical and physical properties of their cell
walls by detecting peptidoglycan, which is
present in a thick layer in Gram-positive
General Characteristics
Aerobic rods with flagella at the poles
General Characteristics
Excrete extracellular pigment by diffusing it
into the local environment
General Characteristics
Ability to use nitrate (NO3-) instead of
oxygen as a final electron acceptor
Process of anerobic respiration yields
considerable energy
Could be a problem because it robs the
soil of nitrate in the metabolism
Example :: E. Coli
Most E. colis strains are harmless, but some
stereotypes can cause serious food
poisoning in humans
Thought to be associated with food
Pathogenic strains of the bacterium cause