Dmitry Iosifovich Ivanovsky (1864-1920), a Russian biologist who was the first to discover viruses (1892). 1864 was a leap year starting on Friday (see link for calendar). ... 1920 is a leap year starting on Thursday (link will take you to calendar) // Events January January 7 - Forces of Russian White admiral Kolchak surrender in Krasnoyarsk. ... Three types of viruses: a bacterial virus, otherwise called a bacteriophage (left center); an animal virus (top right); and a retrovirus (bottom right). ...
Ivanovsky studied in the University of St Petersburg in 1887, when he was sent to investigate a disease affecting tobacco and referred to as "wildfire". Three years later, they asked him to look into another disease of tobacco plants, this time raging in the Crimea. He discovered that both diseases were caused by an infinitely minuscule agent capable of permeating porcelain filters, something which bacteria could never do. He described his findings in an article (1892) and a dissertation (1902). Seal of Saint Petersburg State University Saint Petersburg State University (Санкт-Петербургский Государственный Университет) one of the oldest Russian educational institutions, established in the city of Saint Petersburg on January 28, 1724 by decree of Peter the Great. ... 1887 is a common year starting on Saturday (click on link for calendar). ... A disease is any abnormal condition of the body or mind that causes discomfort, dysfunction, or distress to the person affected or those in contact with the person. ... Species N. glauca N. longiflora N. rustica N. sylvestris N. tabacum Ref: ITIS 30562 as of 2002 August 28 Tobacco () is a broad-leafed plant of the nightshade family, indigenous to North and South America, whose dried and cured leaves are often smoked (see tobacco smoking) in the form of... The Crimea (officially Autonomous Republic of Crimea, Russian transliteration: Avtonomnaya Respublika Krym, Russian: ÐÐ²Ñ‚Ð¾Ð½Ð¾Ð¼Ð½Ð°Ñ Ð ÐµÑпублика Крым, Ukrainian: Ðвтономна РеÑпубліка Крим, , pronounced cry-MEE-ah in English) is a peninsula and an autonomous republic of Ukraine on the northern coast of the Black Sea. ...
Ivanovsky, the son of a landowner, was born in Gdov, Russia.
DmitriIvanovsky, in studying a disease that affects tobacco plants, paved the way for the discovery of the infectious particle known as a virus.
Ivanovsky studied in the University of St Petersburg in 1887, when he was sent to investigate a disease affecting tobacco and referred to as "wildfire".
Feeds |
Contact