Tag Archives: bacteria

Diversity and function of bacteria living inside a plant relevant for soil remediation of metals

Salt marshes are among the most productive ecosystems on Earth and are sometimes subjected to pollution. The vegetation in this type of environment is, as a consequence, highly specialized to endure its surroundings. For over four decades,

How do bacteria divide and multiply?

Bacteria interact with our bodies every day, resulting in both positive and negative outcomes. We rely on the billions of beneficial bacteria in our microbiome to support our digestion and immunity. At the same time, pathogenic bacteria

Intracellular/surface proteins in pathogens: Another purpose in another place?

Bacteria use proteins on their surface to interact with host cells and tissues during infection. Proteins on the bacterial cell surface can also be good targets for developing new vaccines. The significance of surface proteins prompted many

Identify the bacteria within and on your-self

The human intestine (gut) and other body sites harbor numerous microorganisms (bacteria, viruses, archaea, including fungi), collectively referred to as the microbiome or microbiota. The genome of these microbes encodes for metabolic functions and contribute significantly to the

Can eradication of a bacterium in the stomach increase the platelet count in patients with chronic ITP?

Platelets are blood cells that play a major role in causing blood clots to form and preventing excessive bleeding so their reduction or dysfunction can result in bleeding and even death. These cells are made in the

Why identify microscopic photosynthetic bacteria called Cyanobacteria?

Cyanobacteria, the small, harmless bacteria, are invisible to the naked eye. Cyanobacteria photosynthesize like all plants do and thus produce the oxygen we breath. In nature they can be found almost everywhere from the open ocean, to

Gene wiring keeps bacteria cooperating

A bacterial cell can cooperate with its neighbours by producing molecules that allow them to grow better. These molecules may for example be enzymes that break down complex nutrients into digestible components. Because making these enzymes is

Two kinds of novel osmoregulation pathways in Escherichia coli

To cope with severe environmental changes, cell is equipped with various stress response pathways. Osmotic upshift (hyperosmotic shock) triggers water efflux from bacterial cell, and the resulting cell shrinkage is sensed by osmosensors embedded in the cytoplasmic

Potassium in dental plaque, an old story with a new perspective

Dental plaque or biofilm is home to caries causing bacteria such as Streptococcus mutans. Interestingly, the fluid in the biofilm is like an aqueous reservoir of material shared between different species. Although the fluid content is derived

Flares and pirouettes: the different moves of spinning bacteria

Bacteria often form together on surfaces in dense communities, known as biofilms. These cause medical and industrial problems because this lifestyle increases their resistance to disease and other stresses, making them difficult to remove. We aim to

Ex-vivo percutaneous absorption of enrofloxacin

Enrofloxacin is an antibiotic from the fluoroquinolone family used to cure several infections. This antibiotic inhibits DNA replication required for bacterial growth. It is against a wide range of bacteria, including those resistant to other antibiotics. Enrofloxacin

Essential role of a conserved nitrogen phosphotransferase system in rhizobium-legume symbiosis

The overuse of chemical nitrogen fertilizer in agriculture has caused serious environmental issues around the world. Legume crops play important roles in sustainable agriculture and are characterized by their ability of forming nitrogen-fixing nodules, in which rhizobia

Consuming a probiotic once a day could improve cognitive skills

Probiotics, which are friendly and beneficial bacteria to our bodies, could improve cognitive skills, i.e the ability to learn, memorise, process information or react to events, as demonstrated by researchers at the APC Microbiome Institute, University College

Rapid and extremely reliable detection extended-spectrum ß-lactamases-producing Enterobacteriaceae

Resistance to antibiotics is becoming a worldwide issue mostly related to resistance observed in gram negative bacterial species such as in Enterobacteriaceae (Escherichia coli , Klebsiella pneumoniae) that are the most important source of hospital – and

Colorectal anastomotic leakage: an ongoing mystery

Whenever people are diagnosed with an intestinal disease such as Crohn, Colitis or colorectal cancer, they might need to undergo surgery to remove the affected part of the intestine. During such surgery, the remaining parts of the

Life on sulfur. Why we need complete genomes

The ability of bacteria to grow on inorganic compounds like sulfur was discovered by Russian microbiologist Sergey Winogradskij in 1888. First, he studied a sulfur bacterium of the Beggiatoaceae family to demonstrate that it can produce energy