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The spores of gram-positive bacteria can be found in the soil, air and inside the human body.

The spores of gram-positive bacteria can be found in the soil, air and inside the human body.

Gram-positive bacteria can be staphylococci, streptococci, pneumococci,  Bacillus anthracis , and  Corynebacterium diptheriae 

Gram-positive bacteria are the genus of bacteria family and a member of the phylum Firmicutes. These bacteria retain the colour of the crystal violet stain which is used during gram staining. These bacteria give a positive result in the Gram stain test by appearing purple coloured when examined under a microscope, hence named, gram-positive bacteria. Actinomyces, Clostridium, Mycobacterium, streptococci, staphylococci, and Nocardia are a few examples of gram-positive bacteria.

It is permeable, cross-linked organic polymer and rigid structure which plays an important role in providing shape and strength to the cell wall. It makes up about 90% of the cell wall enclosing the plasma membrane and protects the cell from the environment. Peptidoglycan is composed of three main components including- Glycan backbone, Peptide, and Tetra-peptide.

The lipid element found in the gram-positive bacteria cell wall supports in its anchoring to the membrane. The total percentage of lipid content in a gram-positive bacterium cell wall is 2 – 5 percentage.

It is water-soluble and a polymer of glycerol. Teichoic acid is the major surface antigen of gram-positive bacteria and it makes up about fifty percent of the total dry weight of the cell wall.

The substantial increase in skin and mucous infections in all humans are caused by staphylococcal species. These organisms are mainly transmitted through skin contact, fomite contact, by inhaling of infected aerosolized particles, by pets, etc. Other risk factors include food poisoning, Respiratory Diseases, tooth cavities, Diphtheria, Mycobacterium tuberculosis, etc.

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