Drawing by Ferdinand Cohn made in 1866 of the large filamentous sulfur-oxidizing bacterium Beggiatoa mirabilis. MiniReview Robert Hooke was the first to describe microorganisms, and Antoni van Leeuwenhoek was the first to describe bacteria. Ferdinand Cohn founded the field of bacteriology and discovered bacterial endospores 1.
The field of bacteriology (later a subdiscipline of microbiology) was founded in the 19th century by Ferdinand Cohn, a botanist whose studies on algae and photosynthetic bacteria led him to describe several bacteria including Bacillus and Beggiatoa.
Ferdinand Cohn Ignaz Semmelweis Robert Koch ... Brain-Heart Infusion broth is commonly used in microbiology laboratories for the propagation of many different kinds ...
Monomorphic theory, supported by Louis Pasteur, Rudolf Virchow, Ferdinand Cohn, and Robert Koch, emerged to become the dominant paradigm in modern medical science: it is now almost universally accepted that each bacterial cell is derived from a previously existing cell of practically the same size and shape.
1875 In the publication Ueber Bakterien, Ferdinand Cohn discussed the role of microorganisms in the sequencing of elements in nature. In 1875, Cohn published for the first time an early classification of bacteria, using the genus name, Bacillus .
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Griffith's experiment discovering the "transforming principle" in pneumococcus bacteria. Griffith's experiment ,  reported in 1928 by Frederick Griffith ,  was the first experiment suggesting that bacteria are capable of transferring genetic information through a process known as transformation .