A coccus (plural cocci, from the La

A coccus (plural cocci, from the Latin coccinus (scarlet) and derived from the Greek kokkos (berry)) is any microorganism (usually bacteria)[1] whose overall shape is spherical or nearly spherical.[2] Describing a bacterium as a coccus, or sphere, distinguishes it from bacillus, or rod. This is the first of many taxonomic traits for identifying and classifying a bacterium according to binomial nomenclature.

Aggregations[edit]
Aggregations of coccoid bacteria often occur and these forms have specific names as well;[3] listed here are the basic forms as well as representative bacterial genera:

pairs, or diplococci (Neisseria)
groups of four or eight known as tetrads or sarcina (Micrococci)
bead-like chains, or streptococci (Streptococcus)
grapelike clusters, or staphylococci (Staphylococcus)
Diplococcus[edit]
A diplococcus (plural diplococci) is a round bacterium (a coccus) that typically occurs in pairs of two joined cells. Examples are Streptococcus pneumoniae, Moraxella catarrhalis, Neisseria gonorrhoeae and Neisseria meningitidis.

Its name comes from diplo, meaning double, and coccus, meaning berry. This is because berries are round, like a diplococcus, and diplococci come in pairs of two.

In former times, a bacterial genus Diplococcus was recognized, but it is not used anymore.

Coccobacillus[edit]

Coxiella burnetii (TEM)
A coccobacillus (plural coccobacilli) is a type of rod-shaped bacteria. The word coccobacillus reflects an intermediate shape between coccus (spherical) and bacillus (elongated).[4] Coccobacilli rods are so short and wide that they resemble cocci. Haemophilus influenzae and Chlamydia trachomatis are coccobacilli. Aggregatibacter actinomycetemcomitans is a gram negative coccobacillus which is prevalent in subgingival plaques. Acinetobacter strains may grow on solid media as coccobacilli.

Coxiella burnetti is also a coccobacillus.[5]

Clinical significance[edit]
Important human pathogens caused by coccoid bacteria those include staphylococci infections, some types of food poisoning, some urinary tract infections, toxic shock syndrome, gonorrhea, as well as some forms of meningitis, throat infections, pneumonias, and sinusitis.[6]

Kết quả (Anh) 2:

A coccus (plural cocci, from the Latin coccinus (scarlet) and derived from the Greek kokkos (berry)) is any microorganism (Thường bacteria) [1] overall shape is spherical or có Nearly spherical. [2] Describing a bacterium as a coccus, or sphere, distinguishes it from bacillus, or rod. This is the first of many taxonomic traits for Identifying and classifying a binomial nomenclature theo bacterium. Aggregations [edit] aggregations of coccoid bacteria often Do những forms occur and have specific names as well; [3] listed here are the basic forms as well as Representative bacterial genera: pairs, or diplococci (Neisseria) groups of four or eight known as tetrads or SARCINA (Micrococci) bead-like chains, or streptococci (Streptococcus) grapelike clusters, or staphylococci (Staphylococcus) diplococcus [edit] A diplococcus (plural diplococci) is a round bacterium (a coccus) That Occurs in pairs of two Typically joined cells. Examples are Streptococcus pneumoniae, Moraxella catarrhalis, Neisseria gonorrhoeae and Neisseria meningitidis. Its Name Comes from Diplo, double meaning, and coccus, meaning berry. This is vì berries are round, like a diplococcus, and come in pairs of two diplococci. In former times, a bacterial genus diplococcus was recognized companies, but it is not used anymore. Coccobacillus [edit] Coxiella burnetii (TEM) A coccobacillus (plural coccobacilli) is a type of rod-shaped bacteria. The word reflects an intermediate coccobacillus giữa coccus shape (spherical) and bacillus (elongated). [4] Coccobacilli rods are so short and wide có chúng resemble cocci. Chlamydia trachomatis and Haemophilus influenzae are coccobacilli. Actinomycetemcomitans is a gram negative Aggregatibacter coccobacillus in subgingival plaques mà prevalent. Acinetobacter strains grow on solid media sewing as coccobacilli. Coxiella burnetti is cũng a coccobacillus. [5] Clinical-significance [edit] Important human pathogens caused by coccoid bacteria include staphylococci infections những, some types of food poisoning, urinary tract infections some, toxic shock syndrome, Gonorrhea, as well as some forms of meningitis, throat infections, pneumonias, and sinusitis. [6]