D and Ivanovo biography

Ivanovsky Dmitry Iosifovich - Plant physiologist, microbiologist. Born in the year in the St. Petersburg province. He graduated from the Larinsky gymnasium with honors. In the year he entered the University of St. Petersburg at the Faculty of Physics and Mathematics, graduated from it in the year and was left at the Department of Botanika. C - Assistant of the Botanical Laboratory of the St.

Petersburg Academy of Sciences. Under the leadership of A. Beketov, A. Damnitsyna and X. Gobi, he studied the physiology of plants and microbiology. In the year he defended the master's thesis and, as a privat-Dochent of St. Petersburg University, began lectures on the physiology of lower organisms, and C-on anatomy and physiology of plants. From the year - extraordinary, and from the year - the Ordinary professor of the Warsaw University.

In Warsaw, Ivanovsky simultaneously taught at the highest female courses. As a student, Ivanovsky was interested in plant diseases, studied in Ukraine and in Moldova the spread of the ripples that destroyed the crop of tobacco. Later he was interested in the mosaic disease of this plant, previously mixed with Ryabuha. He expressed a hypothesis of her bacterial origin.

He believed that the filtrate contains either the smallest bacteria or a toxin that is secreted by them and capable of causing a disease.

Special organisms that caused the disease - the viruses of the mosaic disease of tobacco - were seen for the first time only in the year with the help of an electron microscope. However, it is the year that the year of the discovery of these new organisms - viruses is considered. He laid the foundation for virology that grew into an independent field of science. The discovery of viruses played a huge role in the development of a number of scientific disciplines: biology, medicine, veterinary medicine and phytopathology.

It made it possible to decipher the etiology of diseases such as rabies, smallpox, encephalitis and many others. Ivanovsky also studied the process of alcohol fermentation and the influence of oxygen, chlorophyll and other pigments of green leaves involved in the process of photosynthesis. His work is also known for general agricultural microbiology. Ivanovsky was a Darwinist, emphasized the dependence of organisms on environmental conditions and proved the evolutionary significance of this fact.

In the future, he conducted a scientific study of the air supply of plants, focusing on studying the state of plant chlorophyll, the importance of carotene and xanthofill for plants, chlorophyll stability to the light in the living sheet and the second maximum assimilation. He conducted these studies together with M. Color - the creator of the adsorbed chromatographic analysis method.

In the year, Warsaw University was evacuated to Rostov-on-Don. The evacuation did not allow to transport the laboratory, which Ivanovsky created in Warsaw for many years. Ivanovsky had to organize everything again. Working at the University of Don since the year - with the rank of professor, he participated in his public life as the chairman of the department of biology of the Society of Natural Researchchers.

Along with the work on virology that brought him world fame, Ivanovsky conducted other studies. He is the author of publications, including a number of works in the field of soil microbiology, physiology and anatomy of plants, 30 articles in the Efron Encyclopedic Dictionary and a two -volume textbook on plant physiology. He died on April 20 in Rostov-on-Don. In the recognition of outstanding merits D.

Ivanovsky, which is awarded once every three years for the best scientific work on virology.