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In 1903, Nikolai K. Koltsov proposed that the shape of cells was determined by a network of tubules that he termed the cytoskeleton. The concept of a protein mosaic that dynamically coordinated cytoplasmic biochemistry was proposed by Rudolph Peters in 1929 [12] while the term (cytosquelette, in French) was first introduced by French embryologist Paul Wintrebert in 1931.
One key distinction between cellular processes and lamellipodia lies in the composition of their cytoskeletal elements. While cellular processes can be supported by any of the three major components of the cytoskeleton— microfilaments ( actin filaments ), intermediate filaments (IFs), or microtubules —, lamellipodia are primarily driven by ...
Microbiology (from Ancient Greek μῑκρος (mīkros) ' small ' βίος (bíos) ' life ' and -λογία ' study of ') is the scientific study of microorganisms, those being of unicellular (single-celled), multicellular (consisting of complex cells), or acellular (lacking cells).
The most recent edition in print is the eleventh edition, copyright 2012 (ISBN 9780071778343), comprising twenty volumes. The encyclopedia covers the life sciences and physical sciences, as well as engineering and technology topics. There is also a one-volume McGraw-Hill Concise Encyclopedia of Science and Technology based on the
Medical microbiology, the large subset of microbiology that is applied to medicine, is a branch of medical science concerned with the prevention, diagnosis and treatment of infectious diseases. In addition, this field of science studies various clinical applications of microbes for the improvement of health.
Desulfovibrio vulgaris is the best-studied sulfate-reducing microorganism species; the bar in the upper right is 0.5 micrometre long.. Sulfate-reducing microorganisms (SRM) or sulfate-reducing prokaryotes (SRP) are a group composed of sulfate-reducing bacteria (SRB) and sulfate-reducing archaea (SRA), both of which can perform anaerobic respiration utilizing sulfate (SO 2−
Once a bacterium has been identified following microbiological culture, antibiotics are selected for susceptibility testing. [5] Susceptibility testing methods are based on exposing bacteria to antibiotics and observing the effect on the growth of the bacteria (phenotypic testing), or identifying specific genetic markers (genetic testing). [6]
These contributions were accomplished by a simple microscope, which led to the understanding of microbes today and continues to progress scientists understanding. [5] Microbial genetics also has applications in being able to study processes and pathways that are similar to those found in humans such as drug metabolism. [6]