MICROBIOLOGY TECHNIQUES: APPLICATIONS AND USES
The microbiology laboratory is unique and different from the laboratory of other biological and medical sciences in that it has some fundamental techniques which the […]
General Microbiology
MICROORGANISMS AND THEIR COLONIAL CHARACTERISTICS
Microorganisms (bacteria and fungi inclusive) produce definite patterns on culture media plates as they grow and divide. These specific patterns (inclusive of shapes and sizes) […]
THE MICROBIAL DIVERSITY: EUBACTERIA, ARCHAEA AND BACTERIA
The phylogenetic tree of life comprises mainly of Eubacteria (referring to eukaryotic organisms), Archaea and Bacteria (which are prokaryotic organisms).Eubacteria or Eukarya, Archaea and Bacteriaare […]
CLASSIFICATION / GROUPS OF MICROORGANISMS ACCORDING TO THEIR TAXONOMY
There are billions of microorganisms in the face of the planet earth, and these organisms are ubiquitously distributed. To make sense of the diversity of […]
UNDERSTANDING THE PATHOGEN-ASSOCIATED MOLECULAR PATTERNS (PAMPs) AND PATTERN RECOGNITION MOLECULES (PRMs)
Pathogen-associated molecular patterns (PAMPs) are structural components common to a particular group of pathogen or infectious disease agents. PAMPs are often macromolecules and include polysaccharides, […]
ORIGIN AND SIGNIFICANCE OF CHEMOLITHOAUTOTROPHY: THE WINOGRADSKY CONCEPT OF CHEMOLITHOTROPHY
An organism that obtains its energy from the oxidation of inorganic compounds is known as chemolithotroph. The concept of chemolithotrophic autotrophy was first conceived by […]
MICROBIAL TAXONOMY
Taxonomy can be defined as the scientific system of classifying biological organisms into taxa (singular: taxon). Taxonomy is generally the science of biological classification; and […]
GERM THEORY OF DISEASE AND MILESTONES IN MICROBIOLOGY
Germ theory of disease is the theory that human infectious diseases are caused by specific variety of microorganisms including but not limited to pathogenic bacteria, […]
SPONTANEOUS GENERATION
Spontaneous generation (abiogenesis) is the mistaken hypothesis that living organisms are capable of being generated from non-living things. Mankind for many centuries (even till the […]
FREDERICK GRIFFITH (1879-1941) AND FRANCIS CRICK (1916-2004)
FREDERICK GRIFFITH (1879-1941) Frederick Griffith was a British bacteriologist, physician and pathologist who performed transformation experiments that suggested that DNA was the hereditary material. His […]