Tag Archives: bacteria

Laser tool magnifies bacterial genotypic alteration as a colony phenotype

Gene manipulation tools are routinely used to create genetically engineered bacteria to understand the function of a gene or its role in pathogenesis in case of an infective microbe. Genetic engineering and manipulation of genes have been

Artilysin®s as a novel enzyme-based approach to kill drug-resistant bacteria

In recent years world leading health care authorities have warned the global community about the threat of antimicrobial resistance. We risk being cast back into the dark ages when minor infections and injuries were often lethal. However,

Microfluidic “plaque-on-a-chip” with pH new imaging concept probes individual factors in tooth decay

Your teeth are covered in biofilm called plaque. This biomaterial consists of bacteria in a protective matrix of proteins, polysaccharides and other long organic molecules. When you eat or drink, bacterial respiration and other metabolic processes convert

Dining at extraordinary locations: new species of bacteria on fatty diet

Birds are among the most popular organisms on earth. Their majestic appearance, lovely songs as well as the ability to fly have always thrilled people making them one of the most thoroughly investigated classes of the animal

Erythrocytes, not leukocytes, clear bacteria from blood circulation

After discovery of phagocytosis by Elie Metchnikoff in 1882, it has become an axiom that in human body white blood cells (leukocytes) are the main cells that engulf and destroy bacteria and other pathogens. But until recently, there has

Are the physicochemical properties and bacteriological composition of composts linked?

Compost is the product of composting, which is a biological process to valorize and recycle a variety of organic wastes. Given the benefits of composting numerous industrial units have been commercializing this type of product. The parameters

Fecal microbial transplantation: a novel approach to eradicate antibiotic-resistant gut bacteria

The discovery of antibiotics in the early 20th century had an enormous impact on modern medicine, dramatically reducing mortality associated with infections.  However, the emergence of drug – resistant pathogens has occurred due to greater availability and

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