FAQ: What Is The Morphology Of Citrobacter Freundii?

Citrobacter freundii is a species of facultative anaerobic gram-negative bacteria of the family Enterobacteriaceae. The bacteria have a long rod shape with a typical length of 1–5 μm. Most C. freundii cells generally have several flagella used for locomotion, but some do not and are non-motile.

What color is Citrobacter Freundii?

Citrobacter freundii on Nutrient Agar Smooth, convex, translucent, or opaque grey colored with a shiny surface and entire margin; mucoid or rough colonies occasionally.

What is Citrobacter Freundii known for?

freundii with gastroenteritis, neonatal meningitis, and septicemia. [3] It is known to cause health care associated infections of the urinary tract, respiratory tract, blood, and other normally sterile sites in the body. The chief cause is a weak and attenuated immune system and functioning of the body.

What media does Citrobacter Freundii grow?

Citrobacter freundii is normally cultured in complex media, but aerobic growth also occurs in a minimal medium supplemented with glutamate, methionine, lysine and thiamin (de Graaf & Stouthamer, 1971).

What is the morphology of Serratia marcescens?

Serratia marcescens is a Gram-negative, facultatively anaerobic, rod-shaped bacterium belonging to the family Enterobacteriaceae.

What does Citrobacter Freundii look like?

Citrobacter freundii is a species of facultative anaerobic gram-negative bacteria of the family Enterobacteriaceae. The bacteria have a long rod shape with a typical length of 1–5 μm. Most C. freundii cells generally have several flagella used for locomotion, but some do not and are non-motile.

Where is Citrobacter Freundii from?

Citrobacter freundii is isolated from human and animal feces, as well as from extraintestinal specimens. It is also commonly found in soil water and food.

Is Citrobacter Freundii anaerobic?

Citrobacter freundii (C. freundii) is a motile, facultative anaerobe, non-sporing gram-negative bacilli colonize in the gastrointestinal tract of humans and other animals. It is also found in water, soil, and food.

Does Citrobacter freundii reduce nitrate?

C. freundii reduced nitrate or nitrite stoichiometrically to ammonia. Maximum molar growth yields for nitrate (nitrite) were 15.3 (9.9) g/mol for C.

Is Citrobacter freundii a coliform?

The MF technique indicated that Citrobacter freundii was the most common coliform species in water samples. However, the fermentation tube techniques displayed selectivity towards the isolation of Escherichia coli and Klebsiella.

Does Citrobacter freundii reduce sulfur?

They mentioned that this strain of Citrobacter is able to reduce sulfate to sulfide. The isolation of bacteria belongs to C. freundii with sulfate reduction capability shows that the diversity of SRB still has the possibility to be expanded (Zhang et al.

Does Citrobacter Freundii ferment mannitol?

Citrobacter can use citrate as a sole carbon source, ferment mannitol, usually with gas production, may or may not ferment lactose, and almost always produce beta-galactosidase.

How is Citrobacter Freundii transmitted?

MODE OF TRANSMISSION: Citrobacter may be spread by direct contact with hospital staff members, mother to child transmission or through ingestion of environmental sources (fecal-oral route) but person-to-person transmission is more prevalent ^{7, 11}.

Who discovered Citrobacter Freundii?

freundii. The Citrobacter genus was discovered in 1932 by Werkman and Gillen. Cultures of C. freundii were isolated and identified in the same year from soil extracts [1].