The diplococci are bacteria having a round shape and these microbes are found, in nature, in pairs of cells. Gram negative can be a term utilised in association with these bacteria to mean that a crystal violet dye is not retained (within the protocol of Gram staining) by these. Those bacteria which retain this dye are called gram positive. You can find several infectious diplococci in the gram negative category. Let us have a take a look at some of these by means of information in this post.
Facts about Gram Negative Bacteria
The descriptions of critical gram negative diplococci falling in this group can be discovered inside the paragraphs below.
Moraxella Catarrhalis
This gram-negative bacteria is non-motile in nature. It causes distinct kinds of bacterial infections of respiratory method, central nervous method, middle ear and joints of the body. The Moraxella catarrhalis is placed within the family, Moraxellaceae and order Pseudomonadales. Since, the bacteria was earlier placed within the genus, Branhamella, it’s also referred to as Branhamella catarrhalis.
As stated earlier, the Moraxella catarrhalis is responsible for a variety of respiratory and other infections. Speaking concerning the diseases specifically, the bronchitis, sinusitis otitis media and laryngitis are several of the conditions caused by these gram negative bacteria. This microorganism is also associated using the illness of bronchopneumonia. Heavy smokers and elderly patients should especially be conscious of such problems caused by Moraxella catarrhalis. The beta-lactamases produced by these bacteria makes it resistant to penicillin. This diplococcus bacteria is also resistant to tetracycline, trimethoprim sulfamethoxazole and trimethoprim. Treatment for this bacterial infection is carried out by indicates of fluoroquinolones, amoxicillin clavunate and erythromycin. The gram negative diplococci
Neisseria Meningitidis
The Neisseria meningtidis is amongst the essential gram negative diplococci and is responsible for causing meningitis. Mortality rates resulting from the infection of this bacterium are high in Africa and Asia. Younger young children (below five years of age) are at a greater risk of infection caused by Neisseria meningitidis. These bacteria attack only the human beings; the reason behind such behavior by the bacteria is that it can obtain iron only from humans. The sources of iron (discovered in human body) which Neisseria meningitidis makes use of are lactoferrin and transferrin.
The outer membrane of this bacterium contains lipooligosaccharide; the chemical, lipooligosaccharide acts as an endotoxin. This chemical is responsible for septic shock and fever. In some cases, lipoologosaccharide also causes destruction of red blood cells and outcomes into hemorrhage. The Neisseria meningitidis, apart from meningitis is also responsible for causing septicemia. In septicemia, inflammation of the whole-body takes location. Presence of gram negative diplococci in urine and the response by immune method against them outcomes into an inflammatory state of the body. The antibiotics like ceotaxime, ceftriaxone and penicillin G are employed inside the treatment of this gram negative diplococci. Sputum of the affected person could be tested in laboratory, to confirm the presence of this bacterium.
Neisseria Gonorrhoeae
This gram negative bacteria was initial described by Albert Neisser within the year 1879. Gonorrhea, a sexually transmitted infection is caused by this bacterium. The Neisseriaceae gonorrhoeae are a sort of bacteria which move by means of a twitching motion. Pili are the locomotory organs utilised by this gram negative diplococci for movement. In laboratories, the Neisseriaceae gonorrhoeae can grow on chocolate agar. Inside the infection called gonorrheae, a pus-like discharge from genitals might be observed; this purulent discharge is characterized by a foul smell. Other symptoms of this medical condition contain inflammation, swelling, redness and burning sensation at the time of urination. It isn’t just the sexually transmitted infection caused by this bacterium is problematic but also are other well being troubles which can be caused by Neisseria gonorrheae. The symptoms resulting from this diplococcus bacterial infection include pharyngitis, conjuctivitis, urethritis, orchitis and prostatitis. It truly is discovered that the Neisseria gonorrheae is resistant to antibiotics from the penicillin group. The medications like ceftriaxone can consequently, be utilized.
The gram negative diplococci are mostly, the infectious bacteria responsible for a lot of various illnesses; a short account of info about Neisseria gonorrhoeae, Neisseria meningitidis and Moraxella catarrhalis really should throw some light on the illnesses they are responsible for and also the treatment measures being utilized against them.