How Salmonella survives the macrophage's acid attack

Macrophages destroy bacteria by engulfing them in intracellular compartments, which they then acidify to kill or neutralize the bacteria. However, some pathogenic bacteria, such as Salmonella enterica, have evolved to exist ...

HIV virulence depends on where virus inserts itself in host DNA

The human immunodeficiency virus (HIV) can insert itself at different locations in the DNA of its human host - and this specific integration site determines how quickly the disease progresses, report researchers at KU Leuven's ...

Cellular network transforms fungus when temperatures rise

(Phys.org) —When the infectious fungus Histoplasma capsulatum feels the temperature start to rise, it undergoes a transformation. As it shifts its shape from long filaments to oval cells, the pathogen switches on genes ...

Counting small RNA in disease-causing organisms

Small molecules of RNA (tens to hundreds of nucleotides in length) play a key regulatory role in bacteria. Due to their small size, directly measuring the number of small RNA (sRNA) present in a single bacterium has proven ...

Gene silencing set to boost agricultural yields

Researchers from Murdoch University have developed an environmentally friendly 'gene silencing' method to control Root Lesion Nematodes, plant pathogens known to reduce crop yields in major crops such as wheat and barley ...

New study shows how Salmonella colonises the gut

(Phys.org) —Salmonella is a major cause of human diarrhoeal infections and is frequently acquired from chickens, pigs and cattle, or their products. Around 94 million such infections occur in people worldwide each year, ...

Small bacteria helping big things grow in the ocean

Around 71 per cent of the Earth's surface is made up of salt-water oceans - that's 98 per cent of all water. The ecosystems that exist beneath their surface are diverse and vibrant. Their sheer scale, however, means that ...

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