Schistosoma mansoni parasite. In 2009 researchers from the UT Health Science Center San Antonio and other institutions crack the genetic code of Schistosoma mansoni, a flatworm that can live up to 10 years on average in humans. The parasite is endemic in many tropical areas of the world.
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Coloured scanning electron micrograph (SEM) of the parasitic powdery mildew Erysiphe sp. on the stalk of a plant. The orange needle-like structures are thorns on the surface of the stalk. Hyphae (grey) are the tangled filaments that form the fungal colony. Rising up from the hyphae are asexual spore-bearing structures called conidiophores. Powdery mildew is so-called because of the numerous white spores it produces. It is an agricultural pest, which parasitizes leaves of grasses.
SEM of Staphylococcus epidermidis cluster embedded in exopolysaccharide matrix. The Gram-positive bacteria S. epidermidis and S. aureus are the most common pathogens in hospital-acquired infections. The more recent combination of extraordinary virulence and multiple antibiotic resistance in community-acquired methicillin-resistant strains of S. aureus (CA-MRSA) poses an additional severe threat to public health.
By Carla Stehr and Kyle Frischkorn, Northwest Fisheries Science Center The bacterium Vibrio parahaemolyticus adhere to chitin expressed by diatoms (the discs you see) in this scanning electron micrograph.
Scanning electron micrograph of Streptococcus pyogenese bacteria (yellow) bound to a human neutrophil (blue). Credit: NIAID