Yahoo Web Search

Search results

  1. algae. bacteria. endospore. fungus. taxonomy. Ferdinand Cohn (born January 24, 1828, Breslau, Silesia, Prussia [now Wrocław, Poland]—died June 25, 1898, Breslau) was a German naturalist and botanist known for his studies of algae, bacteria, and fungi. He is considered one of the founders of bacteriology. Cohn was born in the ghetto of ...

    • The Editors of Encyclopaedia Britannica
  2. Jul 1, 2000 · Ferdinand Cohn (1828–1898) investigated the unicellular algae Protococcus pluvialis Kützing and Stephanosphaera pluvialis and elucidated the different stages of development and the difference between vegetative and generative multiplication of swarm cells (macrogonidia and isogametes) .

    • Gerhart Drews
    • 2000
  3. People also ask

    • Overview
    • Background
    • Impact
    • Further Reading

    Ferdinand Julius Cohn(1828-1898) is recognized as one of the founders of modern bacteriology. He contributed to the creation of this discipline in two important ways. First, he invented a new system for classifying bacteria, which provided microbiologists with a more standardized nomenclature with which to work. Secondly, his drive to understand th...

    The discipline of bacteriology originated with the recognition that bacteria are organisms in their own right—that they are different from algae, fungi, and other single-celled microorganisms. This idea is central to Cohn's belief in the constancy of bacterial species and his creation of an extensive classification system for microorganisms, in whi...

    The notion, promoted by Cohn and others, that bacterial species were constant, led to methods of growing pure cultures. Pasteur was using pure cultures to support his claims that different types of fermentations were caused by specific microorganisms. German physician Robert Koch (1843-1910) would later apply similar reasoning in developing the ger...

    Bulloch, William. The History of Bacteriology. London: Oxford UniversityPress, 1960. Cohn, Ferdinand J. Bacteria: The Smallest of Living Organisms. Baltimore, MD: Johns HopkinsUniversity Press, 1939. Vandervliet, Glenn. Microbiology and the Spontaneous Generation Debate During the 1870s.Kansas: Coronado Press, 1971.

  4. Cohn was a prolific writer, leaving behind over 150 papers, essays, and books. [1] In the 1850s he studied the growth and division of plant cells. In 1855 he produced papers on the sexuality of Sphaeroplea annulina and later Volvox globator. In the 1860s he studied plant physiology in several different aspects.

  5. Sourced quotations by the German Biologist Ferdinand Cohn (1828 — 1898). Enjoy the best Ferdinand Cohn quotes and picture quotes!

  6. Aug 12, 2009 · These turns to microbiology evinced three main themes: (1) biogeographical patterns and processes, (2) the distinction between evolution through natural selection and evolution as progressive complexification, and (3) the continuous nature of evolution operating on all lifeforms throughout the entire history of life.

  7. Drews (1999, 2000) review Cohns personal life, scientific career, and impacts on the development of microbiology. The 1999 article covers Cohns botanical research on plants and microalgae thoroughly; 153 references including a comprehensive list of Cohns major publications.