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Stem Rust
Stem rust, also known as cereal rust, black rust, red rust or red dust, is caused by the fungus ''Puccinia graminis'', which causes significant disease in cereal crops. Crop species that are affected by the disease include bread wheat, durum wheat, barley and triticale. These diseases have affected cereal farming throughout history. The annual recurrence of stem rust of wheat in North Indian plains was discovered by K. C. Mehta. Since the 1950s, wheat strains bred to be resistant to stem rust have become available. Fungicides effective against stem rust are available as well. In 1999 a new, more virulent race of stem rust was identified against which most current wheat strains show no resistance. The race was named TTKSK (e.g. isolate Ug99). An epidemic of stem rust on wheat caused by race TTKSK spread across Africa, Asia and the Middle East, causing major concern due to the large numbers of people dependent on wheat for sustenance, thus threatening global food security. An o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christiaan Hendrik Persoon
Christiaan Hendrik Persoon (31 December 1761 – 16 November 1836) was a Cape Colony mycologist who is recognized as one of the founders of mycology, mycological Taxonomy (biology), taxonomy. Early life Persoon was born in Cape Colony at the Cape of Good Hope, the third child of an immigrant Pomeranian father, Christiaan Daniel Persoon, and Netherlands, Dutch mother, Wilhelmina Elizabeth Groenwald. His mother died soon after he was born. In 1775, at the age of thirteen, he was sent to Europe for his education. His father died a year later in 1776. Education Initially a student of theology at University of Halle-Wittenberg, Halle, Persoon switched his studies to medicine, which he pursued in Leiden and then Göttingen. He received a doctorate from the German National Academy of Sciences Leopoldina, Deutsche Akademie der Naturforscher in Erlangen 1799. Later years He moved to Paris by 1803, where he spent the rest of his life, renting the upper floor of a house in a poor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LA Times
The ''Los Angeles Times'' is an American daily newspaper that began publishing in Los Angeles, California, in 1881. Based in the Greater Los Angeles city of El Segundo since 2018, it is the sixth-largest newspaper in the U.S. and the largest in the Western United States with a print circulation of 118,760. It has 500,000 online subscribers, the fifth-largest among U.S. newspapers. Owned by Patrick Soon-Shiong and published by California Times, the paper has won over 40 Pulitzer Prizes since its founding. In the 19th century, the paper developed a reputation for civic boosterism and opposition to labor unions, the latter of which led to the bombing of its headquarters in 1910. The paper's profile grew substantially in the 1960s under publisher Otis Chandler, who adopted a more national focus. As with other regional newspapers in California and the United States, the paper's readership has declined since 2010. It has also been beset by a series of ownership changes, staff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spermogonium
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John Hubert Craigie
John Hubert Craigie, (December 8, 1887 – February 26, 1989) was a Canadian plant pathologist. He is known for his "research and development of rust-resistant cereals which have been of vital significance to Canada as a cereal producing nation." Biography Born in Merigomish, Pictou County, Nova Scotia, Craigie studied at Harvard University, the University of Minnesota, and the University of Manitoba. He was a founding member of the Dominion Rust Research Laboratory in Winnipeg, Manitoba in 1925. In 1930, he received a Ph.D. from the University of Manitoba. In 1926, he published "Discovery of the Function of the Pycnia of the Rust Fungi." From 1928 to 1945, he was in charge of the plant pathology section of the lab. From 1945 to 1952, he was the Dominion Botanist for the Department of Agriculture. Honours In 1952, he was made a Fellow of the Royal Society. While a Fellow of the Royal Society of Canada, he was made an Officer of the Order of Canada The Order of Canad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anton De Bary
Heinrich Anton de Bary (26 January 183119 January 1888) was a German surgeon, botanist, microbiologist, and mycologist (fungal systematics and physiology). He is considered a founding father of plant pathology (phytopathology) as well as the founder of modern mycology. His extensive and careful studies of the life history of fungi and contribution to the understanding of algae and higher plants established landmarks in biology. Early life and education Born in Frankfurt to physician August Theodor de Bary (1802–1873) and Emilie Meyer de Bary, Anton de Bary was one of ten children. He joined excursions of naturalists who collected local specimens. De Bary’s interest was further inspired by George Fresenius, a physician, who also taught botany at Senckenberg Institute. Fresenius was an expert on thallophytes. In 1848, de Bary graduated from a gymnasium at Frankfurt, and began to study medicine at Heidelberg, continuing at Marburg. In 1850, he went to Berlin to continue purs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Tulasne
Charles Tulasne (5 September 1816 – 28 August 1884) was a French physician, mycologist and illustrator born in Langeais in the département of Indre-et-Loire. He received his medical doctorate in 1840 and practiced medicine in Paris until 1854. Afterwards he worked with his older brother Louis René Tulasne (1815–1885) in the field of mycology. He died in Hyères, département of Var. In addition to assisting his brother with the classification and study of fungi, Charles Tulasne collaborated with Louis on numerous scientific publications. He is known for his excellent illustrations, particularly in the three-volume ''Selecta Fungorum Carpologia''. Regarding the artistic quality of his work, Charles Tulasne is sometimes referred to as "The Audubon of Fungi". In 1872, Joseph Schröter circumscribed a genus of effused (patch-forming) fungi in the Tulasnellaceae The Tulasnellaceae are a family of fungi in the order Cantharellales. The family comprises mainly effused ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis René Tulasne
Louis René Étienne Tulasne, a.k.a. Edmond Tulasne (12 September 1815 – 22 December 1885) was a French botanist and mycologist born in Azay-le-Rideau. He originally studied law at Poitiers, but his interest later turned to botany. As a young man he assisted botanist Auguste de Saint-Hilaire (1779–1853) with studies of Brazilian flora. From 1842 until 1872 he worked as a naturalist at the Muséum national d'histoire naturelle in Paris. In 1854 he succeeded Adrien-Henri de Jussieu (1797–1853) as a member of the Académie des sciences. He died in Hyères on 22 December 1885, age 70. Tulasne's specialized study was the science of mycology. His microscopic investigation of fungi, particularly parasitic species, contributed much to the understanding on the complexities of their nature and development. He is credited with introducing the concept of " pleomorphy" in regard to fungi. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giuseppe Maria Giovene
Giuseppe Maria Giovene (23 January 1753 – 2 January 1837) was an Italian archpriest, naturalist, agronomist, geologist, meteorologist, entomologist and ichthyologist. elogio-storico, pag. 9, note 8 He is best known for his studies on the "nitrosity" of Pulo di Molfetta, which made him famous abroad, so as to be cited and appreciated by many Italian and foreign scholars, including Eberhard August Wilhelm von Zimmermann in a French publication. His scientific research, mainly focused agronomy, botany and meteorology, were not just theoretical and aimed at the mere research of natural phenomena, but their goal was to develop and improve agriculture in the Kingdom of Naples; this was a common feature of the scientific works of the earliest scientists of the Kingdom of Naples. He was member of many academies, among which the ''Società italiana delle scienze'' and, because of his being a polymath, he's been described as an "encyclopaedic mind". He was also a clergyman, and he held ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giovanni Targioni Tozzetti
Giovanni Targioni Tozzetti (Florence, 11 September 1712 - Florence, 7 January 1783) was an Italian botanist and naturalist. Biography He studied at the University of Pisa, and at the age of 22 was nominated to become a professor. He would move to Florence, where he joined the botanical society directed by Pier Antonio Micheli. He published observations on the cures of maladies with botanicals, about the epidemic in 1752, and a grain disease in 1733 and 1766. He served the Tuscan Grand Dukes as a doctor, and was appointed commissioner of sanitation in the program to vaccinate for smallpox. He was supervisor of the Orto Botanico di Firenze in Florence succeeded by Saverio Manetti. He had varied interests including writing about ways to prevent the Arno from flooding and about local archeologic artifacts. Works Among his publications were: [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Felice Fontana
Abbé Gasparo Ferdinando Felice Fontana (15 April 1730 – 9 March 1805) was an Italian polymath who contributed to experimental studies in physiology, toxicology, and physics. As a physicist he discovered the water gas shift reaction in 1780. He investigated the human eye and has also been credited with discovering the nucleolus of a cell. His work on the venom of vipers was among the earliest experimental toxicological studies. He served as a court physicist for Peter Leopold, Duke of Tuscany and taught at the University of Pisa. He was involved in the establishment of the La Specola museum in Florence. Biography Fontana was born at Casa Fontana, Pomarolo, Val Lagarina, the third son of jurist Pietro and his wife Elena Caterina Ienetti. He was baptized on 3 June 1730. When his father moved to Villa Lagarina, Fontana studied in Rovereto under Girolamo Tartarotti and Giambattista Graser. He then travelled to listen to lectures including those of the anatomist G. B. Morgagni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rouen
Rouen (, ; or ) is a city on the River Seine, in northwestern France. It is in the prefecture of Regions of France, region of Normandy (administrative region), Normandy and the Departments of France, department of Seine-Maritime. Formerly one of the largest and most prosperous cities of medieval Europe, the population of the metropolitan area () is 702,945 (2018). People from Rouen are known as ''Rouennais''. Rouen was the seat of the Exchequer of Normandy during the Middle Ages. It was one of the capitals of the Anglo-Normans, Anglo-Norman and Angevin kings of England, Angevin dynasties, which ruled both England and large parts of modern France from the 11th to the 15th centuries. From the 13th century onwards, the city experienced a remarkable economic boom, thanks in particular to the development of textile factories and river trade. Claimed by both the French and the English during the Hundred Years' War, it was on its soil that Joan of Arc was tried and burned alive on 30 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
