Aspergillus is an airborne fungus found in soil, decaying vegetation, and other organic matter. It belongs to a group of molds called Ascomycetes. Aspergillus species are widely distributed in nature, and many different species can be found in any given environment. The most common species of Aspergillus found in nature are Aspergillus niger, Aspergillus flavus, Aspergillus fumigatus, and Aspergillus terreus.
Aspergillus is a home to a multitude of bacteria. These bacteria are usually of the Gram-positive type and belong to the genera Bacillus, Clostridium, Streptomyces, and Enterococcus. Some of the more common species of bacterial associates of Aspergillus include Bacillus subtilis, Clostridium perfringens, Streptomyces griseus, and Enterococcus faecalis. These bacteria are generally considered to be saprophytic, meaning they live off of dead organic matter, and are not harmful to humans.
In addition to these saprophytic bacteria, Aspergillus may also be home to certain pathogenic bacteria. These include species such as Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. These pathogenic bacteria can cause a range of human infections, including pneumonia, endocarditis, and urinary tract infections.
Overall, Aspergillus hosts a wide variety of bacteria, both saprophytic and pathogenic. It is important to be aware of the potential risks associated with exposure to Aspergillus, particularly for those with weakened immune systems or other health issues.