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- His classic treatise Untersuchungen über Bacterien (Researches on Bacteria), published in his journal in 1872, laid the foundations of modern bacteriology. In it he defined bacteria, used the constancy of their external form to divide them into four groups, and described six genera under these groups.
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Jul 1, 2000 · Ferdinand Cohn (1828–1898), a pioneer in the developmental biology of lower plants, considerably promoted the taxonomy and physiology of bacteria, discovered the heat-resistant endospores of bacilli, and was active in applied microbiology.
- Gerhart Drews
- 2000
Dec 25, 2022 · Cohn was the first to classify algae (a type of microorganism), and he is also one of the founders of modern microbiology and bacteriology. Ferdinand Cohn successfully distinguished algae from plants, and he also classified bacteria into four (4) different groups in terms of their characteristic shapes (rods, spirals, spherical and threads); a ...
- Returned to Breslau
- Founded Institute For Plant Research
- Produced Major Work
- Spores That Survived Boiling
- Further Reading
In March 1848, Berlin was engulfed in a rebellion. Cohn supported the revolutionaries in spirit, although he did not actively participate. Because of his political opinions, and possibly because he was Jewish, Cohn was refused a teaching position in Berlin. He returned to Breslau in 1849 and obtained a teaching position at the University of Breslau...
One of Cohn's top priorities for twenty years had been to create an institute of plant physiology. In 1866, the university obtained an old building that had been a prison and allowed him to develop the first institute for plant physiology in the world. Cohn was the director of the institute from the time it opened in 1869 until his death. Using a s...
In order to publicize the work of his institute, Cohn began a journal, Beitrage zur Biologie der Pflazen,in 1872. This journal contained the first essays on modern bacteriology and provided an outlet for other pioneers in the field to publish their research. In 1872, Cohn published a paper that defined bacteria as "chlorophyll-free cells of spheric...
In 1875, Cohn published his second essay on bacteria and defended the theories outlined in his 1872 essay. New material included a long section on Bastian's experiments on turnip-cheese infusions. Bastian discovered that some bacteria survived boiling after ten minutes in a closed flask. Cohn theorized that there might be a special developmental st...
A Biographical Dictionary of Scientists,edited by Trevor I. Williams, John Wiley & Sons, 1974. Dictionary of Scientific Biography,edited by Charles Coulston Gillispie, Charles Scribner's Sons, 1971. Shapiro, Michael, The Jewish 100. A Ranking of the Most Influential Jews of All Time,Carol Publishing Group, 1994. □
F erdinand Julius Cohn, a German botanist, is recognized today as a founder of bacteriology. He was adept at observing and describing the life cycles of microorganisms. This talent led him, in the 1870s, to construct the first classification system for bacteria.
Apr 19, 2024 · His classic treatise Untersuchungen über Bacterien (Researches on Bacteria), published in his journal in 1872, laid the foundations of modern bacteriology. In it he defined bacteria, used the constancy of their external form to divide them into four groups, and described six genera under these groups.
Among his most striking contributions was his discovery of the formation and germination of spores in certain bacteria. During his lifetime Cohn was recognized as the foremost bacteriologist of his day. taxonomy Summary.
Ferdinand Julius Cohn (1828–1898): Pioneer of Bacteriology | Pioneers in Microbiology. customercare@wspc.com. Pioneers in Microbiology, pp. 69-74 (2017) No Access.
