The diplococci are bacteria with a round shape and these microbes are found, in nature, in pairs of cells. Gram negative is a term used in association with these bacteria to mean that a crystal violet dye is not retained (in the protocol of Gram staining) by these. Those bacteria which retain this dye are known as gram positive. There are many infectious diplococci in the gram negative category. Let us have a look at some of these through information in this article.
Facts about Gram Negative Bacteria
The descriptions of important gram negative diplococci falling in this group can be found in the paragraphs below.
Moraxella Catarrhalis
This gram-negative bacteria is non-motile in nature. It causes different types of bacterial infections of respiratory system, central nervous system, middle ear and joints of the body. The Moraxella catarrhalis is placed in the family, Moraxellaceae and order Pseudomonadales. Since, the bacteria was earlier placed in the genus, Branhamella, it is also referred to as Branhamella catarrhalis.
As stated earlier, the Moraxella catarrhalis is responsible for a variety of respiratory and other infections. Speaking about the diseases specifically, the bronchitis, sinusitis otitis media and laryngitis are a few of the conditions caused by these gram negative bacteria. This microorganism is also associated with the disease of bronchopneumonia. Heavy smokers and elderly patients should especially be aware 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 means of fluoroquinolones, amoxicillin clavunate and erythromycin. The gram negative diplococci
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