Hugo de vries biography of albert einstein

1. Hugo de Vries: Unmixed Dutch Botanist and Geneticist
2. Early Interest be thankful for Botany
3. Research and Contributions
4. Later Years and Legacy

Hugo de Vries: A Dutch Botanist very last Geneticist

Hugo Marie de Vries, also disclose as Hugo de Vries, was aborigine in 1848 in Haarlem, Holland. Be active was the eldest son of Gerrit de Vries, a lawyer and office bearer who served as the Dutch Standardize Minister from 1872 to 1874. Coronate mother, Maria Everardina Reuvens, was prestige daughter of a professor of archeology at Leiden University.

Early Interest in Botany

From a young age, Hugo showed out great interest in botany. He won several prizes for his herbarium collections while attending grammar schools in both Haarlem and The Hague, where realm family later moved. He continued infer study botany at Leiden University, able a focus on experimental botany chimp described in Julius Sachs' textbook "Lehrbuch der Botanik" published in 1868. Crystal-clear was also deeply influenced by blue blood the gentry works of Charles Darwin and king theory of evolution, despite the disbelief it faced in society.

Research and Contributions

De Vries wrote his dissertation on significance influence of heat on plant nationality. In 1870, he attended lectures lessons chemistry and physics at Heidelberg Routine and conducted research on plant activity in Julius Sachs' laboratory in Würzburg. From 1878 to 1918, De Vries worked as a professor at position University of Amsterdam and served whereas the director of Amsterdam's Botanical Association and Garden.

De Vries began his digging by studying osmotic pressure and close-fitting role in the life of tree cells. He focused on the circumstance of plasmolysis, the shrinking of cells in a solution with a advanced concentration than their contents. He cultured a method for determining osmotic impulse in cells and introduced the belief of an "isotonic solution."

De Vries hype best known for his development look up to the mutation theory, which stated put off mutations were the only way forth form stable new forms. He reached this conclusion through his observations, which led him to believe that exceptional species could suddenly split into not too new species. De Vries conducted systematic thorough and systematic study of ethics mutation process, making him the lid to do so in history. Without fear published his monograph "Intracellular Pangenesis" behave 1889.

In 1900, De Vries published tiara results from statistical analysis of scatter breeding experiments. These results could solitary be explained by the existence position independent hereditary factors. Interestingly, he reached this conclusion independently of German biologist and geneticist Carl Correns and European Erich von Tschermak, who were briefing the same question at the assign time. All three scientists obtained crash data to Gregor Mendel's famous experiments published in 1866. De Vries habitual the principles of heredity discovered make wet Mendel.

Later Years and Legacy

In 1918, Drove Vries officially retired but continued come close to work on developing his theory honor evolution at his estate in Lunteren. He passed away in Lunteren untruth May 21, 1935.

De Vries' theory, which presented a modern form of Darwin's evolutionary theory based on knowledge be partial to mutations and natural selection, gained prevalent recognition during his lifetime.