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Cronartiaceae
The Cronartiaceae are a family of rust fungi in the order Uredinales. They are heteroecious rusts with two alternating hosts, typically a pine and a flowering plant, and up to five spore stages. Many of the species are plant disease A disease is a particular abnormal condition that negatively affects the structure or function of all or part of an organism, and that is not immediately due to any external injury. Diseases are often known to be medical conditions that a ...s of major economic importance, causing significant damage and (in some cases) heavy mortality in conifers. References * Hiratsuka, Y. et al. (1991). ''Rusts of pine. Proceedings of the IUFRO Rusts of Pine Working Party Conference''. Forestry Canada Information Report NOR-X-317. External links Forestry Images: photos of some Cronartiaceae rusts Pucciniales Cronartiaceae {{Teliomycotina-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endocronartium
''Endocronartium'' is a genus of rust fungi in the Cronartiaceae family. The genus contains three species found in Europe, North America, and Japan, that grow on ''Pinus A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. The World Flora Online created by the Royal Botanic Gardens, Kew and Missouri Botanical Garden accep ...'' trees. ''Endocronartium'' was circumscribed by Hiratsuka in 1969. References External links * Teliomycotina {{Teliomycotina-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peridermium
''Peridermium'' is a genus of rust (fungus), rust fungi in the family Cronartiaceae. The genus was circumscribed by Johann Carl Schmidt and Gustav Kunze in 1817. Species include ''Peridermium californicum''. Subtaxa ''Peridermium'' includes the following species and Variety (botany), varieties: *''Peridermium abietinum'' **''Peridermium abietinum var. abietinum'' **''Peridermium abietinum var. decolorans'' *''Peridermium acerifolium'' *''Peridermium acicola'' *''Peridermium acicolum'' *''Peridermium apocynaceum'' *''Peridermium appalachianum'' *''Peridermium balansae'' *''Peridermium balsameum'' *''Peridermium barteti'' *''Peridermium betheli'' *''Peridermium bethelii'' *''Peridermium boreale'' *''Peridermium boudieri'' *''Peridermium brevius'' *''Peridermium californicum'' *''Peridermium carneum'' *''Peridermium carpetanum'' *''Peridermium cedri'' *''Peridermium cerebroides'' *''Peridermium cerebrum'' *''Peridermium coloradense'' *''Peridermium columnare' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cronartium
''Cronartium'' is a genus of rust fungi in the family Cronartiaceae. They are heteroecious rusts with two alternating hosts, typically a pine and a flowering plant, and up to five spore stages. Many of the species are plant diseases of major economic importance, causing significant damage. ;Species, hosts and natural distribution *'' Cronartium appalachianum'': ''Pinus virginiana'', Santalaceae. Eastern North America. *'' Cronartium arizonicum'': ''Pinus ponderosa'' and related pines, Scrophulariaceae. Western North America. *'' Cronartium comandrae'': ''Pinus'' subgenus ''Pinus'', Santalaceae. North America. *'' Cronartium comptoniae'': ''Pinus'' subgenus ''Pinus'', Myricaceae. North America. *'' Cronartium conigenum'': ''Pinus'' subgenus ''Pinus'', Fagaceae. Southwestern North America. *'' Cronartium flaccidum'': ''Pinus'' subgenus ''Pinus'', several families. Europe, Asia. *'' Cronartium occidentale'': ''Strobus'' subgenus ''Strobus'', Saxifragaceae. Southwestern North Amer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rust (fungus)
Rusts are plant diseases caused by pathogenic fungi of the order Pucciniales (previously known as Uredinales). An estimated 168 rust genera and approximately 7,000 species, more than half of which belong to the genus ''Puccinia'', are currently accepted. Rust fungi are highly specialized plant pathogens with several unique features. Taken as a group, rust fungi are diverse and affect many kinds of plants. However, each species has a very narrow range of hosts and cannot be transmitted to non-host plants. In addition, most rust fungi cannot be grown easily in pure culture. A single species of rust fungi may be able to infect two different plant hosts in different stages of its life cycle, and may produce up to five morphologically and cytologically distinct spore-producing structures viz., spermogonia, aecia, uredinia, telia, and basidia in successive stages of reproduction. Each spore type is very host specific, and can typically infect only one kind of plant. Rust fungi are o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pucciniales
Rusts are plant diseases caused by pathogenic fungi of the order Pucciniales (previously known as Uredinales). An estimated 168 rust genera and approximately 7,000 species, more than half of which belong to the genus ''Puccinia'', are currently accepted. Rust fungi are highly specialized plant pathogens with several unique features. Taken as a group, rust fungi are diverse and affect many kinds of plants. However, each species has a very narrow range of hosts and cannot be transmitted to non-host plants. In addition, most rust fungi cannot be grown easily in pure culture. A single species of rust fungi may be able to infect two different plant hosts in different stages of its life cycle, and may produce up to five morphologically and cytologically distinct spore-producing structures viz., spermogonia, aecia, uredinia, telia, and basidia in successive stages of reproduction. Each spore type is very host specific, and can typically infect only one kind of plant. Rust fungi are o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western White Pine
Western white pine (''Pinus monticola''), also called silver pine and California mountain pine, is a species of pine in the family Pinaceae. It occurs in mountain ranges of northwestern North America. It is the state tree of Idaho. Description Western white pine is a large tree, regularly growing to tall. It is a member of the white pine group, ''Pinus'' subgenus ''Strobus'', and like all members of that group, the leaves ('needles') are in fascicles (bundles) of five, with a deciduous sheath. The needles are finely serrated, and long. The cones, appearing even on young trees, are long and slender, long and broad (closed), opening to broad; the scales are thin and flexible. The seeds are small, long, and have a long slender wing long. The branches are borne in regular whorls, produced at the rate of one a year; this is pronounced in narrow, stand-grown trees, while open specimens may have a more rounded form with wide-reaching limbs. When mature, the tree has bark that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Dietel
Paul Dietel (15 February 1860, Greiz – 30 October 1947, Zwickau) was a German mycologist. He studied mathematics and natural sciences at the universities of Leipzig, Berlin and Göttingen, and afterwards worked as a schoolteacher in Greiz, Leipzig, Reichenbach im Vogtland and Glauchau. He specialized in research of rust fungi ( Uredinales) — from 1887 to 1943 he was the author of 150 scientific papers on rusts. His extensive treatment of rust fungi in Engler and Prantl's ''Die Natürlichen Pflanzenfamilien'' was recognized as its definitive account for many years. In 1897 Paul Christoph Hennings named the genus ''Dietelia'' (family Pucciniosiraceae The Pucciniosiraceae are a family of rust fungi in the order Pucciniales. The family contains 10 genera and 57 species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of bio ...) in his honor. Selected writings * ''Beiträge zur Morphologie und ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elias Fries
Elias Magnus Fries (15 August 1794 – 8 February 1878) was a Swedish mycologist and botanist. Career Fries was born at Femsjö (Hylte Municipality), Småland, the son of the pastor there. He attended school in Växjö. He acquired an extensive knowledge of flowering plants from his father. In 1811 Fries entered Lund University where he obtained a doctorate in 1814. In the same year he was appointed an associate professorship in botany. He was elected a member of the Royal Swedish Academy of Sciences, and in 1824, became a full professor. In 1834 he became Borgström professor (Swed. ''Borgströmianska professuren'', a chair endowed by Erik Eriksson Borgström, 1708–1770) in applied economics at Uppsala University. The position was changed to "professor of botany and applied economics" in 1851. He was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1849. That year he was also appointed director of the Uppsala University Botanical G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heteroecious
A heteroecious parasite is one that requires at least two hosts. The ''primary host'' is the host in which the parasite spends its adult life; the other is the ''secondary host''. Both hosts are required for the parasite to complete its life cycle. This can be contrasted with an autoecious parasite which can complete its life cycle on a single host species. Many rust fungi have heteroecious life cycles: In parasitology, heteroxeny, or heteroxenous development, is a synonymous term that characterizes a parasite whose development involves several hosts. Fungal examples * ''Gymnosporangium'' (Cedar-apple rust): the juniper is the primary ( telial) host and the apple, pear or hawthorn is the secondary (aecial) host. * ''Cronartium ribicola'' (White pine blister rust): the primary host are white pines, and currants the secondary. * ''Hemileia vastatrix'' (Coffee rust): the primary host is coffee plant, and the alternate host is unknown. * ''Puccinia graminis'' (Stem rust): the pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pine
A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. The World Flora Online created by the Royal Botanic Gardens, Kew and Missouri Botanical Garden accepts 187 species names of pines as current, together with more synonyms. The American Conifer Society (ACS) and the Royal Horticultural Society accept 121 species. Pines are commonly found in the Northern Hemisphere. ''Pine'' may also refer to the lumber derived from pine trees; it is one of the more extensively used types of lumber. The pine family is the largest conifer family and there are currently 818 named cultivars (or trinomials) recognized by the ACS. Description Pine trees are evergreen, coniferous resinous trees (or, rarely, shrubs) growing tall, with the majority of species reaching tall. The smallest are Siberian dwarf pine and Potosi pinyon, and the tallest is an tall ponderosa pine located in southern Oregon's Rogue Riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
