What is the size of Yersinia pestis bacteria?
Gram negative rod-ovoid 0.5-0.8 µm in width and 1-3 µm in length (safety pin appearance), bipolar staining (Giemsa) facultative intracellular, non-motile.
What is the shape of Yersinia pestis bacteria?
Yersinia pestis is a nonmotile, gram-negative, facultative anaerobic, nonspore forming, rod-shaped coccobacillus bacteria.
How do you write Yersinia pestis?
Yersinia pestis (Y. pestis) (formerly Pasteurella pestis) is a gram-negative, non-motile, coccobacillus bacterium without spores that is related to both Yersinia pseudotuberculosis and Yersinia enterocolitica.
What is the scientific name for Yersinia pestis?
Yersinia pestisYersinia pestis / Scientific name
bacillus Pasteurella pestis (now called Yersinia pestis; renamed after French bacteriologist Alexandre Yersin, who independently discovered the plague bacillus during the Hong Kong epidemic).
Is Yersinia pestis archaebacteria or eubacteria?
Yersinia pestis is a eubacteria. Eubacteria are the true bacteria whereas archaebacteria are prokaryotic organisms which had a distinct evolutionary…
What BSL level is Yersinia pestis?
BSL-3
Yersinia pestis [Plague] – BSL-3.
Is Yersinia pestis photosynthetic chemosynthetic or heterotrophic?
Yersinia pestis is heterotrophic. This means that it obtains its organic molecules in organic form from other organisms.
Does Yersinia pestis form endospores?
They do not form endospores or true capsules. The production of flagella depends on the temperature of incubation, being absent at 37 °C but occurring at 22 °C, except in the case of Y. pestis which is non-motile at both temperatures.
Is Yersinia pestis unicellular or multicellular?
Classification. Yersinia pestis is unicellular, placing it in the Bacteria domain. It is classified as a Prokaryotae because of its absence of a nuclear membrane and DNA that is not organized into chromosomes.
Is Yersinia pestis capsulated?
They do not form spores or capsules, but Y. pestis produces a capsule-like envelope. They share antigens with other members of the Enterobacteriaceae.
What is the difference between BSL 1 and BSL-2?
The main difference in the work procedures followed in a BSL-1 laboratory and a BSL-2 laboratory is that employees in a BSL-2 laboratory will use a BSC as a primary barrier for potentially hazardous aerosols.
What is a Level 3 laboratory?
Biosafety Level 3 (BSL-3) BSL-3 laboratories are used to study infectious agents or toxins that may be transmitted through the air and cause potentially lethal infections. Researchers perform all experiments in a biosafety cabinet. BSL-3 laboratories are designed to be easily decontaminated.