Impact factor (IF) is a measure of the frequency with which the average article in a journal has been cited in a particular year. It is used to sort or rank journals by their relative […]
Probiotics are live microorganisms that are supposed to have health benefits when consumed or applied to the body in adequate amounts. Scientific evidence suggests that specific strains of probiotic microorganisms confer health benefits on the […]
When the laboratory instructor said “take the test organism and stab into the butt”, most of the students were stunned! It was that practical of Microbiology, which taught many students the importance of jargon. In […]
Last updated on October 28th, 2021Probiotics are defined as live microorganisms, which when administered in adequate amounts, confer a health benefit on the host. Species of Lactobacillus and Bifidobacterium are most commonly used as probiotics. […]
Last updated on October 15th, 2021World Health Organization (WHO) defines “probiotics” as “live microorganisms that, when administered in adequate amounts, confer a perceived health benefit on the host”. These intentionally ingested microorganisms consist mainly of […]
Last updated on June 30th, 2021Although most prokaryotes cannot survive in nature without their cell walls, some do so naturally. These include the mycoplasmas, a group of pathogenic bacteria that causes several infectious diseases of […]
Viruses are genetic elements that cannot replicate independently of a living host cell. Host cells provide energy, metabolic intermediates needed for replication and also synthesize viral proteins. As viruses need suitable living cells to multiply, […]
A mutation is a change in the nucleotide sequence of a gene. This gives rise to a new genetic trait or a changed genotype. A cell or an organism that shows the effect of a […]
Last updated on June 21st, 2021All organisms require an energy source to drive energy-consuming life processes. Energy can be tapped from light or chemicals (organic chemicals and inorganic chemicals). Organisms that can utilize radiant energy […]
Last updated on June 21st, 2021Cellular life on earth has evolved along three major lineages, called Bacteria, Archaea, and Eukarya. Comparative rRNA sequencing revealed these three distinct cellular lineages, also called domains. Bacteria and Archaea […]
Spirochetes are long, thin, flexible, spirally coiled helical bacilli. These motile, gram-negative bacilli are classified into eight genera primarily on the basis of habitat, pathogenicity, phylogeny, morphological and physiological characteristics. These long slender bacteria are […]
Human skin is home to billions of diverse bacteria, archaea, fungi, and viruses with bacteria making up the vast majority. Typically, a person has around 1,000 species of bacteria on their skin. The skin microbiome is […]
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