Image Den

Aureobasidium pullulans

Common indoor / allergenic mold (Aureobasidium pullulans); fungal hyphae producing spores (often growing yeast-like). Synonym - Pullularia. Aureobasidium is a common indoor mold / mildew that grows in damp places. It occurs indoors in very damp areas and in free standing water, such as condensate pans, or following a flood. Spores only become airborne through mechanical disruption of contaminated materials or aspiration of contaminated water. It is not a primary human pathogen nor is it recognized as a producer of significant mycotoxins. High airborne levels of this fungus have been associated with allergic complaints probably due to respiratory irritation mediated by cell-wall components (e.g. beta glucans, glycoproteins), it has also been known as an irritant, and to cause pulmonary problems. Courtesy of Dennis Kunkel.

Cyanobacterium - Dermocarpa spp.

Cyanobacterium (Dermocarpa spp.). Magnification 5,335, transmission electron micrograph of a thin section of the cell showing internal cellular details, such as, thylakoids (photosynthetic membranes - green), phycobilisomes (blue), mesosomes (orange), nucleoid regions containing DNA (yellow), polyhedral bodies (purple), cell membrane and mucilaginous sheath (dark blue). This cyanobacterium (prokaryote) is a salt water, unicellular, endospore forming genus that reproduces by multiple fission producing motile baeocytes. Courtesy of Dennis Kunkel.

Featured Items

By The Encyclopedia of Earth.
A Study in Balance: How Microbiomes Are Changing the Shape of Environmental Health.

By Scientific American.
With electrical signals, cells can organize themselves into complex societies and negotiate with other colonies.

By Actionbioscience.org.
Microorganisms — bacteria, archaea, fungi, algae, viruses and protists — are often easy to overlook. For the most part (except fungal fruiting bodies seen as mushrooms) we can’t see microbes. The effects of microbes we feel are usually associated with an illness.

Promoting the study, teaching and dissemination of all aspects of protozoology.

A non-profit civil association that seeks to bring together specialists in clinical and laboratory diagnosis, as well as in the management and treatment of infectious diseases of children and adults.

This bacteria is a gram-positive, anaerobic, non-motile, endospore forming pathogen. This organism is commonly found in a variety of environmental sources, soil, sewage and intestines of humans and animals. The organism is one of the most common causes of food poisoning in the United States and the United Kingdom. Illness is caused by eating food containing large numbers of the bacteria that in turn produce large enough quantities of the enterotoxin in the intestines to cause sickness. Outbreaks often occur at locations where large quantities of food is prepared and kept warm for extended periods (schools, hospitals, cafeterias, institutions, catered events). Symptoms may include diarrhea and abdominal cramps.

Featured FAQs

Spotlight

X