Felix Dujardin
Felix Dujardin biologist French, born the April 5th 1801 with Turns and dead the April 8th 1860 with Rennes.
Autodidact, it obtains the pulpit of Géologie and Minéralogie at the university of Toulouse in 1839, then, the following year, that of Botanique and Zoologie at the university of Rennes.
He makes himself famous for his work on the Protozoaire S of which he defines for the first time the group starting from work on Infusoire S. He names this unit the Rhizopode S.
He studies also the Foraminifère S which he identifies for the first time like Unicellulaire S. In the center of these organizations, he also observes a substance, that one will call later the Protoplasme. He refutes in 1835 the theory, in particular defended by Christian Gottfried Ehrenberg (1795-1876), which affirms that the micro-organisms have the same bodies as the animals Pluricellulaire S.
He studies also the Cnidaire S, the echinodermatous S and the Helminthe S. Its studies on the latter will form the base of the Parasitologie.
Among works of Dujardin, it is necessary to announce: Natural history of the infusoires (1840), Manual of the observer under the microscope (1842) and Natural history of the helminths (1844).
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