Actinobacteria

Actinobacteria

Whhat is Actinobacteria? Actinobacteria are a group of Gram-positive bacteria with a high guanine and cytosine content in their DNA. The guanine and cytosine content of Actinobacteria, can be as high as 70% but some of them do have low guanine and cytosine content. There are two types of actinabacteria and they are terrestrial or aquatic. Even though people understand them as soil bacteria, they might be more abundant in freshwater. Actinobacteria is one of the dominant bacterial phyla and it also contains one of…

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Probiotic combinations

Probiotic Combinations

The following is a list of probiotics that are combined and which functions they perform. L. acidophilus, L.rhamnosusMany researches believe the myriad health benefits of L. acidophilus are also attributable to L. rhamnosus. These two species are perhaps the most important Lactobacili in the small intestine. E. faeciumThis probiotic has become quite popular with health professionals over the years because of the proventherapeutic value of E. faecium. This species seems to be a strong defence againsa variety of pathogenic organisms. Several studies have proven that…

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Probiotic Strains and Descriptions

Probiotic Strains and Descriptions

Probiotic Strains This is a list of most strains of probiotics used. The * indicates the most prevalent ones in products. You can do a search by Probiotics or the species you are in terested in to find out more. Lactobacillus acidophilus *. Lactobacillus brevis. Lactobacillus bulgaricus. Lactobacillus casei subspecies casei. Lactobacillus casei, subspecies paracasei. Lactobacillus casei, subspecies rhamnosus *. Lactobacillus fermentum. Lactobacillus rhamnosus (casei) *. Lactobacillus caucasicus. Lactobacillus helveticus. Lactobacillus lactis. Lactobacillus plantarum. Lactobacillus reuteri. Bifidobacterium bifidum (lactis) *. Bifidobacterium breve subspecies breve. Bifidobacterium…

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Probiotics

Probiotics

What are Probiotics? There are billions of bacteria living in the digestive system of every human, many of which are “friendly” bacteria that contribute to the health and balance of the intestinal tract. This normal microflora prevents the overgrowth of potentially pathogenic bacteria in the intestinal tract. Sometimes, due to viral or bacterial infections, diet, lifestyle changes, antibiotic use, and other factors, the normal bacteria in our intestinal tract become depleted, allowing the potentially pathogenic bacteria to overgrow. The result may be diarrhea, gas, or…

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History of bacteriology

History of bacteriology

Bacteria were first absorbed by a Dutch microscopist, Antonie van Leeuwenhoek back in 1676. He used a single-lens microscope that he developed on his own. His observations were published in a series of letters to the Royal Society of London. Bacteria were van Antonie’s most remarkable microscopic discovery. At the time, these cells were at the limit of what his microscope could make out and the strangest thing is that nobody saw those bacteria again for roughly a century. It was only then, that his…

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Bacteria Metabolism

Pathogenic Bacteria

Pathogenic bacteria are bacteria that can cause diseases. Even though most bacteria are harmless or beneficial, there are several that are a threat o use. This form of bacteria contributes significantly to other globally important diseases like pneumonia and foodborne illnesses. How pathogenic bacteria cause disease. Conditionally pathogenic. Conditionally pathogenic bacteria are only pathogenic under certain conditions such as wounds or a decrease in immune function. Some species of pathogenic bacteria are opportunistic pathogens that cause disease mainly in people suffering from immunosuppression or cystic…

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Archaea

Archaea

What are archaea? Archae is a domain or kingdom of single-celled microorganisms. These organisms are called prokarytoes. They have no cell nucleus or any membrane-bound organelles in their cells. Classification: The Archaea was first classified as bacteria and they received the name archaebacteria. Nowadays, this classification is outdated. Their cells have unique properties that separate them from the other two domains of life. Bacteria. Eukaryota. Now, this domain consists if four recognized phyla. The classification of these organisms are difficult because the majority have not…

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Bacterial genes

Bacterial genes

Most bacteria have a single circular chromosome that can be between 160 000 base pairs to 12 200 000 base pairs.The bacterial genes that are present in bacterial genomes are usually a single continuous strand of DNA. Even though there are several different types of introns that exist in bacteria, they seem to be much more rare than in eukaryotes. Bacteria also contain plasmids. These are small extra-chromosomal DNA that may contain genes for antibiotic resistance or even virulence factors. Plasmids replicate independently from chromosomes…

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do germs have germs

Do germs have germs?

Do germs actually have germs or can they become infected? There are some viruses that infect bacteria that cause disease as well as many other types of bacteria. Bacteriophages have been discovered during The Great War and it was formally named in 1971. The name itself means bacteria eaters. They are much smaller than the bacteria they attack but they cannot grow or multiply on their own. Like viruses, they attach themselves to the surface of the target and inject it with their own genetic…

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Protozoan Diseases

Protozoan Diseases

Protozoan diseases are contagious and some are even deadly to humans. Protozoa that have inhabited the human intestines can be transmitted by sharing food the infected has touched or direct physical contact. Those that live in our blood, can be transmitted by mosquitoes or by coming into contact with the blood itself. These protozoan diseases can be transmitted so easily and people who carry these parasites should avoid interaction with others. Those who have compromised immune systems are at a greater risk. Types of protozoan…

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