What is intracellular and extracellular diplococci?

What is intracellular and extracellular diplococci?

* Intracellular-means that Gram-negative intracellular diplococci morphologically indistinguishable from. the gonococcus were present. Extracellular–means that Gram-negative intracellular diplococci were not found but that Gram-negative extracellular diplococci morphologically resembling the gonococcus were present.

What is intracellular Gram-negative diplococci?

Neisseria gonorrhoeae is a Gram negative, coffee-bean shaped intracellular diplococcus bacterium responsible for gonorrhoea which is one of the classical sexually transmitted infections (STIs) [1]. The causative organism is highly adapted to the genital tract and often causing asymptomatic and undetected infection [2].

Is Neisseria intracellular?

Neisseria species are fastidious, Gram-negative cocci that require nutrient supplementation to grow in laboratory cultures. Neisseria spp. are facultatively intracellular and typically appear in pairs (diplococci), resembling the shape of coffee beans.

Is Neisseria gonorrhoeae aerobic or anaerobic?

Abstract. Neisseria gonorrhoeae is generally considered to be an obligate aerobe; it can, however, grow in the absence of oxygen by anaerobic respiration by using nitrite as a terminal electron acceptor.

Is diplococci gram-negative?

Types. Examples of gram-negative diplococci are Neisseria spp. and Moraxella catarrhalis. Examples of gram-positive diplococci are Streptococcus pneumoniae and Enterococcus spp.

Is Chlamydia trachomatis a diplococci?

On the Cover: Methods to detect Chlamydia trachomatis or Neisseria gonorrhoeae include microscopy (Gram-stain negative diplococci, lower-left), culture (intracellular inclusions, upper-left), and nucleic acid detection tests (DNA helix, right).

Is Neisseria meningitidis extracellular?

To cause meningitis the extracellular pathogen Neisseria meningitidis has to traverse the blood-cerebrospinal fluid (B-CSF) barrier.

Is gonorrhea intracellular or extracellular?

Neisseria gonorrhoeae can survive either as an extracellular organism, or, alternatively, as an intracellular organism within a variety of different cell types.

What is few gram-negative diplococci?

Types. Examples of gram-negative diplococci are Neisseria spp. and Moraxella catarrhalis. Examples of gram-positive diplococci are Streptococcus pneumoniae and Enterococcus spp. Presumably, diplococcus has been implicated in encephalitis lethargica.

What causes gram-negative diplococci?

Gonorrhea infection is a common STI caused by Neisseria gonorrhoeae, a gram-negative diplococcus bacterium that is closely related to other human Neisseria species. Men typically present with a urethral discharge; women are often asymptomatic, but may have vaginal discharge.

Does chlamydia have gram-negative diplococci?

Chlamydia trachomatis is an intracellular, Gram-negative bacterium in the Chlamydiaceae family. Infections caused by Chlamydia trachomatis include trachoma (chronic infection of the eye) and infection of the urogenital tract. The main transmission path is direct or indirect contact with contaminated persons or objects.

Is Neisseria encapsulated?

N. meningitidis is a fastidious, encapsulated, aerobic gram-negative diplococcus. Colonies are positive by the oxidase test and most strains utilize maltose.

Is Gram positive or Gram negative?

The key difference between gram positive and gram negative bacteria is that gram positive bacteria have a thick peptidoglycan layer , hence appear in purple colour while gram negative bacteria have a thin peptidoglycan layer, hence appear in pink colour at the end of the gram staining technique.

Is staph Gram positive or Gram negative?

Staph bacteria are commonly found on the skin, in the nose, and within the mucous membranes of healthy people (some people believe that staph bacteria are gram-negative, but they are actually gram-positive bacteria). Most of the time, the bacteria do not cause infections. When they do, they most commonly affect the skin.

Is clindamycin Gram positive or Gram negative?

Clindamycin is active against gram positive organisms (Staphylococcus aureus, Staphylococcus epidermidis, streptococci and proprionibacterium) and gram negative organisms (bacteroides species). Susceptible organisms include both aerobic and anaerobic bacteria.

Is Campylobacter jejuni Gram positive or Gram negative?

Campylobacter jejuni is a curved gram negative bacilli with characteristic corkscrew motility. It is also oxidase positive and is known to grow well at high temperatures of 42 degrees C. This organism has been recognized as one of the main causes of bacterial foodborne disease.