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- Martinus_Beijerinck abstract "Martinus Willem Beijerinck (16 March 1851 – 1 January 1931) was a Dutch microbiologist and botanist.Born in Amsterdam, Beijerinck studied at the Technical School of Delft, where he was awarded the degree of Chemical Engineer in 1872. He obtained his Doctor of Science degree from the University of Leiden in 1877.At the time, Delft, then a Polytechnic, did not have the right to confer doctorates, so Leiden did this for them. He became a teacher in microbiology at the Agricultural School in Wageningen (now Wageningen University) and later at the Polytechnische Hogeschool Delft (Delft Polytechnic, currently Delft University of Technology) (from 1895). He established the Delft School of Microbiology. His studies of agricultural and industrial microbiology yielded fundamental discoveries in the field of biology. His achievements have been perhaps unfairly overshadowed by those of his contemporaries, Robert Koch and Louis Pasteur, because unlike them, Beijerinck never studied human disease.He is considered one of the founders of virology. In 1898, he published results on the filtration experiments demonstrating that tobacco mosaic disease is caused by an infectious agent smaller than a bacterium.His results were in accordance with the similar observation made by Dmitri Ivanovsky in 1892. Like Ivanovsky before him and Adolf Mayer, predecessor at Wageningen, Beijerinck could not culture the filterable infectious agent, however he concluded that the agent can replicate and multiply in living plants. He named the new pathogen virus to indicate its non-bacterial nature. Beijerinck asserted that the virus was somewhat liquid in nature, calling it "contagium vivum fluidum" (contagious living fluid). It was not until the first crystals of the tobacco mosaic virus (TMV) obtained by Wendell Stanley in 1935, the first electron micrographs of TMV produced in 1939 and the first X-ray crystallographic analysis of TMV performed in 1941 proved that the virus was particulate.Beijerinck also discovered nitrogen fixation, the process by which diatomic nitrogen gas is converted to ammonium ions and becomes available to plants. Bacteria perform nitrogen fixation, dwelling inside root nodules of certain plants (legumes). In addition to having discovered a biochemical reaction vital to soil fertility and agriculture, Beijerinck revealed this archetypical example of symbiosis between plants and bacteria.Beijerinck discovered the phenomenon of bacterial sulfate reduction, a form of anaerobic respiration. He learned bacteria could use sulfate as a terminal electron acceptor, instead of oxygen. This discovery has had an important impact on our current understanding of biogeochemical cycles. Spirillum desulfuricans, now known as Desulfovibrio desulfuricans, the first known sulfate-reducing bacterium, was isolated and described by Beijerinck.Beijerinck invented the enrichment culture, a fundamental method of studying microbes from the environment. He is often incorrectly credited with framing the microbial ecology idea that "everything is everywhere, but, the environment selects", which was stated by Lourens Baas Becking.Beijerinck was a socially eccentric figure. He was verbally abusive to students, never married, and had few professional collaborations. He was also known for his ascetic lifestyle and his view of science and marriage being incompatible. His low popularity with his students periodically depressed him, as he very much loved spreading his enthusiasm for biology in the classroom.".
- Martinus_Beijerinck almaMater Leiden_University.
- Martinus_Beijerinck award Leeuwenhoek_Medal.
- Martinus_Beijerinck birthDate "1851-03-16".
- Martinus_Beijerinck birthPlace Amsterdam.
- Martinus_Beijerinck birthYear "1851".
- Martinus_Beijerinck deathDate "1931-01-01".
- Martinus_Beijerinck deathPlace Gorssel.
- Martinus_Beijerinck deathYear "1931".
- Martinus_Beijerinck field Microbiology.
- Martinus_Beijerinck individualisedGnd "117711829".
- Martinus_Beijerinck influenced Sergei_Winogradsky.
- Martinus_Beijerinck knownFor Chemotroph.
- Martinus_Beijerinck knownFor Microbiological_culture.
- Martinus_Beijerinck knownFor Nitrogen_cycle.
- Martinus_Beijerinck knownFor Sulfate-reducing_bacteria.
- Martinus_Beijerinck knownFor Virology.
- Martinus_Beijerinck thumbnail Martinus_Willem_Beijerinck.png?width=300.
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- Martinus_Beijerinck wikiPageExternalLink www.beijerinck.bt.tudelft.nl.
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- Martinus_Beijerinck almaMater Leiden_University.
- Martinus_Beijerinck birthDate "1851-03-16".
- Martinus_Beijerinck birthPlace "Amsterdam, Netherlands".
- Martinus_Beijerinck dateOfBirth "1851-03-16".
- Martinus_Beijerinck dateOfDeath "1931-01-01".
- Martinus_Beijerinck deathDate "1931-01-01".
- Martinus_Beijerinck deathPlace "Gorssel, Netherlands".
- Martinus_Beijerinck field Microbiology.
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- Martinus_Beijerinck influenced Sergei_Winogradsky.
- Martinus_Beijerinck knownFor Chemotroph.
- Martinus_Beijerinck knownFor Microbiological_culture.
- Martinus_Beijerinck knownFor Nitrogen_cycle.
- Martinus_Beijerinck knownFor Sulfate-reducing_bacteria.
- Martinus_Beijerinck knownFor Virology.
- Martinus_Beijerinck name "Beijerinck, Martinus".
- Martinus_Beijerinck name "Martinus Beijerinck".
- Martinus_Beijerinck placeOfBirth "Amsterdam, Netherlands".
- Martinus_Beijerinck placeOfDeath "Gorssel, Netherlands".
- Martinus_Beijerinck prizes Leeuwenhoek_Medal.
- Martinus_Beijerinck shortDescription "Dutch microbiologist".
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- Martinus_Beijerinck workInstitutions Wageningen_University_and_Research_Centre.
- Martinus_Beijerinck workInstitutions Delft_School_of_Microbiology.
- Martinus_Beijerinck description "Dutch microbiologist".
- Martinus_Beijerinck description "Dutch microbiologist".
- Martinus_Beijerinck subject Category:1851_births.
- Martinus_Beijerinck subject Category:1931_deaths.
- Martinus_Beijerinck subject Category:Corresponding_Members_of_the_Russian_Academy_of_Sciences_(1917%E2%80%9325).
- Martinus_Beijerinck subject Category:Corresponding_Members_of_the_USSR_Academy_of_Sciences.
- Martinus_Beijerinck subject Category:Delft_University_of_Technology_alumni.
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- Martinus_Beijerinck subject Category:Dutch_botanists.
- Martinus_Beijerinck subject Category:Dutch_microbiologists.
- Martinus_Beijerinck subject Category:Dutch_phytopathologists.
- Martinus_Beijerinck subject Category:Environmental_microbiology.
- Martinus_Beijerinck subject Category:Foreign_Members_of_the_Royal_Society.
- Martinus_Beijerinck subject Category:Honorary_Members_of_the_USSR_Academy_of_Sciences.
- Martinus_Beijerinck subject Category:Leeuwenhoek_Medal_winners.
- Martinus_Beijerinck subject Category:Leiden_University_alumni.
- Martinus_Beijerinck subject Category:Nitrogen_metabolism.
- Martinus_Beijerinck subject Category:People_from_Amsterdam.
- Martinus_Beijerinck subject Category:Soil_scientists.
- Martinus_Beijerinck subject Category:Virologists.
- Martinus_Beijerinck subject Category:Wageningen_University_faculty.
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