Most species of bacteria can be broadly divided into two groups, known as gram-positive and gram-negative. These categories reflect big differences in the microbes' biology, and they also dictate ...

Three of these six pathogens are antibiotic-resistant Gram-negative bacteria. Recently, antibacterial drugs against ESBL-producing Gram-negative bacteria accounted for ∼15% (2 out of 13 ...

This is a test commonly used when trying to identify Gram-negative enteric bacteria, all of which are glucose fermenters but only some of which produce gas. *Note - broth tubes can be made containing ...

All patients with suspected Gram-negative endocarditis should undergo transesophageal echocardiography (TEE) to confirm the diagnosis and assess for cardiac complications such as intracardiac ...

A protein determines the shape of bacteria. Bacteria come in a wide variety of shapes, which are important for their fitness in their respective ecological niches. However, despite intensive ...

Genetically engineered bacteria can work together to spot prime numbers, identify vowels or even work out the maximum number of slices a pizza can be cut into. The researchers behind the study say ...

These first microbes would have been extremely simple. Meanwhile, viruses degrade more easily than bacteria, so there are no physical fossils of viruses. Related: What was the first animal on Earth?

Sep. 13, 2024 — In a new study, researchers have determined through both statistical analysis and in experiments that soil pH is a driver of microbial community composition -- but that the need ...

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anaerobic gram-positive cocci, and Fusobacterium species. The presence of these bacteria is only "normal" if the titer of resident flora is low. When bacterial titers exceed 1000 colony forming ...

The resulting nanoparticles were tested for activity against gram-positive and gram-negative bacteria, as well as against ...