|
Brenda D. Fairbairn
Brenda D. Wingfield is a South African Professor of genetics and previous Deputy Dean of the University of Pretoria. She is known for her genetic studies of fungal tree pathogens. Biography Brenda D. Fairbairn was born in Zambia and educated in Zimbabwe. In High School, she found that she enjoyed genetics and went on to study at the University of Natal. She graduated with B.Sc.Hons Med from the University of Cape Town, Master's degree from the University of Minnesota and PhD from the University of Stellenbosch (1989). In the late 1990s, she began to work at the University of Pretoria. She was one of the founding members of the Forestry and Agricultural Biotechnology Institute. She has published over 400 articles on genetics and trained over 50 both Masters and PhD students respectively. Wingfield holds the South African Research Chairs Initiative (SARChI) Chair in Fungal Genomics. Research Wingfield's work centers on fungi that act as tree pathogens. In conjunction with her res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Pretoria
The University of Pretoria ( af, Universiteit van Pretoria, nso, Yunibesithi ya Pretoria) is a multi-campus public university, public research university in Pretoria, the administrative and de facto capital of South Africa. The university was established in 1908 as the Pretoria campus of the Johannesburg-based Transvaal University College and is the fourth South African institution in continuous operation to be awarded university status. The university has grown from the original 32 students in a single late Victorian house to approximately 53,000 in 2019. The university was built on seven suburban campuses on . The university is organised into nine faculties and a business school. Established in 1920, the University of Pretoria Faculty of Veterinary Science is the second oldest veterinary school in Africa and the only veterinary school in South Africa. In 1949, the university launched the first MBA programme outside North America, and the university's Gordon Institute of Busin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armillaria Tabescens
''Armillaria tabescens'' (also known as ringless honey mushroom) is a species of fungus in the family Physalacriaceae. It is a plant pathogen. The mycelium of the fungus is bioluminescent. Hosts and symptoms ''Armillaria'' species infect a wide variety of woody plants. In a survey of 250 permanent plots of trees in Albania, ''Armillaria tabescens'' affected multiple species of trees including fir species, where it invaded when the plant was stressed. Tsopelas et al. reported ''Armillaria tabescens'' to be more prevalent in areas where the trees were stressed due to limited moisture. In oak trees, it was slightly more damaging and could kill young trees. ''Armillaria tabescens'' was also recorded in poplar and eucalyptus plantations, and almond trees were found to be very susceptible to infection. The results of the study by Lushaj et al. showed that ''Armillaria tabescens'' was most frequently recorded on fruit and ornamental trees compared to the other species''.'' ''Armil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern African Society For Plant Pathology
Southern may refer to: Businesses * China Southern Airlines, airline based in Guangzhou, China * Southern Airways, defunct US airline * Southern Air, air cargo transportation company based in Norwalk, Connecticut, US * Southern Airways Express, Memphis-based passenger air transportation company, serving eight cities in the US * Southern Company, US electricity corporation * Southern Music (now Peermusic), US record label * Southern Railway (other), various railways * Southern Records, independent British record label * Southern Studios, recording studio in London, England * Southern Television, defunct UK television company * Southern (Govia Thameslink Railway), brand used for some train services in Southern England Media * ''Southern Daily'' or ''Nanfang Daily'', the official Communist Party newspaper based in Guangdong, China * ''Southern Weekly'', a newspaper in Guangzhou, China * Heart Sussex, a radio station in Sussex, England, previously known as "Southern FM" * 88. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christiaan Hendrik Persoon
Christiaan Hendrik Persoon (1 February 1761 – 16 November 1836) was a German mycologist who made additions to Linnaeus' mushroom taxonomy. Early life Persoon was born in South Africa at the Cape of Good Hope, the third child of an immigrant Pomeranian father and Dutch mother. His mother died soon after he was born; at the age of thirteen his father (who died a year later) sent him to Europe for his education. Education Initially studying theology at Halle, at age 22 (in 1784) Persoon switched to medicine at Leiden and Göttingen. He received a doctorate from the "Kaiserlich-Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher" in 1799. Later years He moved to Paris in 1802, where he spent the rest of his life, renting an upper floor of a house in a poor part of town. He was apparently unemployed, unmarried, poverty-stricken and a recluse, although he corresponded with botanists throughout Europe. Because of his financial difficulties, Persoon agreed to don ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusarium Circinatum
''Fusarium circinatum'' is a fungal plant pathogen that causes the serious disease pitch canker on pine trees and Douglas firs (''Pseudotsuga menziesii''). The most common hosts of the pathogen include slash pine (''Pinus elliottii''), loblolly pine (''Pinus taeda''), Monterey pine (''Pinus radiata''), Mexican weeping pine (''Pinus patula''), and Douglas fir. Like other ''Fusarium'' species in the phylum Ascomycota, it is the asexual reproductive state of the fungus and has a teleomorph, ''Gibberella circinata''. Distribution This fungus is believed to have originated in Mexico. It spread to the eastern United States in 1946 and by 1986 had reached the western United States. It was first recorded in Japan in the 1980s, in South Africa in 1990, in Chile and Spain in the mid 1990s and in Italy in 2007. Host species In California this canker has been recorded on nine different species of pine (''Pinus'') and on Douglas fir (''Pseudotsuga menziesii''). In Europe and Asia it has be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Despite a wide range of natural resources, Africa is the least wealthy continent per capita and second-least wealthy by total wealth, behind Oceania. Scholars have attributed this to different factors including geography, climate, tribalism, Scramble for Africa, colonialism, the Cold War, neocolonialism, lack of democracy, and corruption. Despite this low concentration of wealth, recent economic expansion and the large and young ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ips Pini
''Ips pini'', known generally as the pine engraver or North American pine engraver, is a species of typical bark beetle in the family Curculionidae The Curculionidae are a family of weevils, commonly called snout beetles or true weevils. They are one of the largest animal families, with 6,800 genera and 83,000 species described worldwide. They are the sister group to the family Brentidae. T .... Males construct nuptial chambers in the bark of dead pine or spruce trees. ''Ips pini'' is a tremendous pest when it comes to pines, but mostly of mature red pine plantations. When humans try to get rid of them by trying to burn their habitat, it makes them reproduce even more. As trees get wider, their population ends up competing with other species, but mostly because of the temperature and the chemicals used to stop them is helping the beetle even more. They are polygynous. After mating, the females create ovipositional chambers off of the nuptial chamber and lay eggs within the ga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendroctonus Valens
''Dendroctonus valens'', the red turpentine beetle, is a species of bark beetle native to the forests of North America, Mexico, Guatemala and Honduras. It has been introduced to China where it has become invasive. In its native range it causes little damage, but in China it is a destructive pest and has killed more than six million pine trees. Description The eggs are cylindrical with rounded ends, white, opaque and shiny, and about long. The larva is a white, legless grub, with a brown head and brown tip to the abdomen. As it grows, lateral rows of pale brown tubercles become apparent. The fully grown larva is long. The pupa is white; it is exarate, the antennae and legs being free and not enclosed in a cocoon. The adult beetle is long and about twice as long as it is wide. When it first emerges from the pupa it is tan, but it soon turns dark reddish-brown. Distribution ''Dendroctonus valens'' occurs in North and Central America. Its range extends from Canada and the northern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tomicus Piniperda
''Tomicus piniperda'', the common pine shoot beetle, is a bark beetle native throughout Europe, northwestern Africa, and northern Asia. It is one of the most destructive shoot-feeding species in northern Europe.J M Davies and C J King (1977) ''Pine Shoot Beetles''. Forestry Commission Leaflet 3. HMSO, London .Global Invasive Species Database''Tomicus piniperda'' (insect)/ref> Its primary host plant is Scots pine ''Pinus sylvestris'', but it also uses European black pine ''P. nigra'', maritime pine ''P. pinaster'', eastern white pine ''P. strobus'', red pine ''P. resinosa'', jack pine ''P. banksiana'' and other pines to a small extent, and more rarely on spruce ''Picea'' and larch ''Larix''.Vasconcelos, T., Nazare, N., Branco, M., Kerdelhue, C., Sauvard, D., & Lieutier, F. (2003). Host Preference of ''Tomicus piniperda'' and ''Tomicus destruens'' for Three Pine Species. ''Proceedings: JUFRO Kanazava 2003 “Forest Insect Population Dynamics and Host Influences"'19–21 D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bark Beetle
A bark beetle is the common name for the subfamily of beetles Scolytinae. Previously, this was considered a distinct family (Scolytidae), but is now understood to be a specialized clade of the "true weevil" family ( Curculionidae). Although the term "bark beetle" refers to the fact that many species feed in the inner bark (phloem) layer of trees, the subfamily also has many species with other lifestyles, including some that bore into wood, feed in fruit and seeds, or tunnel into herbaceous plants. Well-known species are members of the type genus '' Scolytus'', namely the European elm bark beetle ''S. multistriatus'' and the large elm bark beetle ''S. scolytus'', which like the American elm bark beetle '' Hylurgopinus rufipes'', transmit Dutch elm disease fungi (''Ophiostoma''). The mountain pine beetle ''Dendroctonus ponderosae'', southern pine beetle '' Dendroctonus frontalis'', and their near relatives are major pests of conifer forests in North America. A similarly aggr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Studies In Mycology
''Studies in Mycology'' is a peer-reviewed open access scientific journal of mycology published by Elsevier on behalf of the Royal Netherlands Academy of Arts and Sciences' CBS Fungal Biodiversity Centre. The journal was established in 1972, and is edited by Robert A. Samson. It is published three times per year. Indexing and abstracting According to the ''Journal Citation Reports'', ''Studies in Mycology'' has a 2014 impact factor of 13.250. It is abstracted and indexed in the following bibliographic databases: *BIOSIS Previews *Science Citation Index *Scopus References External links *{{Official, http://www.journals.elsevier.com/studies-in-mycology/ *Studies in Mycology' @ Royal Netherlands Academy of Arts and Sciences' CBS Fungal Biodiversity Centre The ''Westerdijk Institute'', or Westerdijk Fungal Biodiversity Institute, is part of the Royal Netherlands Academy of Arts and Sciences. The institute was renamed on 10 February 2017, after Johanna Westerdijk, the first female ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Africa")
