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Geosmithia
''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important black walnut (''Juglans nigra'') populations in North America, is caused by '' Geosmithia morbida''. Species in the genus are generally similar to those in ''Penicillium'', but can be distinguished from them by forming cylindrical conidia from rough-walled phialides. Additionally, the conidia of ''Geosmithia'' do not have a green color, in contrast to the characteristic blue-grey or green-grey conidia of ''Penicillium''. Some ''Geosmithia'' species have teleomorphic forms that are classified in the genus ''Talaromyces''. However, ''Geosmithia'' is a polyphyletic taxon with evolutionary affinities to at least three groups of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosmithia Malachitea
''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important black walnut (''Juglans nigra'') populations in North America, is caused by '' Geosmithia morbida''. Species in the genus are generally similar to those in ''Penicillium'', but can be distinguished from them by forming cylindrical conidia from rough-walled phialides. Additionally, the conidia of ''Geosmithia'' do not have a green color, in contrast to the characteristic blue-grey or green-grey conidia of ''Penicillium''. Some ''Geosmithia'' species have teleomorphic forms that are classified in the genus ''Talaromyces''. However, ''Geosmithia'' is a polyphyletic taxon with evolutionary affinities to at least three groups of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosmithia Lavendula
''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important black walnut (''Juglans nigra'') populations in North America, is caused by '' Geosmithia morbida''. Species in the genus are generally similar to those in ''Penicillium'', but can be distinguished from them by forming cylindrical conidia from rough-walled phialides. Additionally, the conidia of ''Geosmithia'' do not have a green color, in contrast to the characteristic blue-grey or green-grey conidia of ''Penicillium''. Some ''Geosmithia'' species have teleomorphic forms that are classified in the genus ''Talaromyces''. However, ''Geosmithia'' is a polyphyletic taxon with evolutionary affinities to at least three groups of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosmithia Langdonii
''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important black walnut (''Juglans nigra'') populations in North America, is caused by '' Geosmithia morbida''. Species in the genus are generally similar to those in ''Penicillium'', but can be distinguished from them by forming cylindrical conidia from rough-walled phialides. Additionally, the conidia of ''Geosmithia'' do not have a green color, in contrast to the characteristic blue-grey or green-grey conidia of ''Penicillium''. Some ''Geosmithia'' species have teleomorphic forms that are classified in the genus ''Talaromyces''. However, ''Geosmithia'' is a polyphyletic taxon with evolutionary affinities to at least three groups of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosmithia Flava
''Geosmithia'' is a genus of anamorphic fungi of uncertain family (biology), familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important black walnut (''Juglans nigra'') populations in North America, is caused by ''Geosmithia morbida''. Species in the genus are generally similar to those in ''Penicillium'', but can be distinguished from them by forming cylindrical conidia from rough-walled phialides. Additionally, the conidia of ''Geosmithia'' do not have a green color, in contrast to the characteristic blue-grey or green-grey conidia of ''Penicillium''. Some ''Geosmithia'' species have Teleomorph, anamorph and holomorph, teleomorphic forms that are classified in the genus ''Talaromyces''. However, ''Geosmithia'' is a polyphyletic taxon with evo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosmithia Fassatiae
''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important black walnut (''Juglans nigra'') populations in North America, is caused by ''Geosmithia morbida''. Species in the genus are generally similar to those in ''Penicillium'', but can be distinguished from them by forming cylindrical conidia from rough-walled phialides. Additionally, the conidia of ''Geosmithia'' do not have a green color, in contrast to the characteristic blue-grey or green-grey conidia of ''Penicillium''. Some ''Geosmithia'' species have teleomorphic forms that are classified in the genus ''Talaromyces''. However, ''Geosmithia'' is a polyphyletic taxon with evolutionary affinities to at least three groups of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosmithia Eupagioceri
''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important black walnut (''Juglans nigra'') populations in North America, is caused by ''Geosmithia morbida''. Species in the genus are generally similar to those in ''Penicillium'', but can be distinguished from them by forming cylindrical conidia from rough-walled phialides. Additionally, the conidia of ''Geosmithia'' do not have a green color, in contrast to the characteristic blue-grey or green-grey conidia of ''Penicillium''. Some ''Geosmithia'' species have teleomorphic forms that are classified in the genus ''Talaromyces''. However, ''Geosmithia'' is a polyphyletic taxon with evolutionary affinities to at least three groups of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosmithia Emersonii
''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important black walnut (''Juglans nigra'') populations in North America, is caused by ''Geosmithia morbida''. Species in the genus are generally similar to those in ''Penicillium'', but can be distinguished from them by forming cylindrical conidia from rough-walled phialides. Additionally, the conidia of ''Geosmithia'' do not have a green color, in contrast to the characteristic blue-grey or green-grey conidia of ''Penicillium''. Some ''Geosmithia'' species have teleomorphic forms that are classified in the genus ''Talaromyces''. However, ''Geosmithia'' is a polyphyletic taxon with evolutionary affinities to at least three groups of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosmithia Eburnea
''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important black walnut (''Juglans nigra'') populations in North America, is caused by ''Geosmithia morbida''. Species in the genus are generally similar to those in ''Penicillium'', but can be distinguished from them by forming cylindrical conidia from rough-walled phialides. Additionally, the conidia of ''Geosmithia'' do not have a green color, in contrast to the characteristic blue-grey or green-grey conidia of ''Penicillium''. Some ''Geosmithia'' species have teleomorphic forms that are classified in the genus ''Talaromyces''. However, ''Geosmithia'' is a polyphyletic taxon with evolutionary affinities to at least three groups of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosmithia Cnesini
''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important black walnut (''Juglans nigra'') populations in North America, is caused by ''Geosmithia morbida''. Species in the genus are generally similar to those in ''Penicillium'', but can be distinguished from them by forming cylindrical conidia from rough-walled phialides. Additionally, the conidia of ''Geosmithia'' do not have a green color, in contrast to the characteristic blue-grey or green-grey conidia of ''Penicillium''. Some ''Geosmithia'' species have teleomorphic forms that are classified in the genus ''Talaromyces''. However, ''Geosmithia'' is a polyphyletic taxon with evolutionary affinities to at least three groups of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosmithia Carolliae
''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important black walnut (''Juglans nigra'') populations in North America, is caused by ''Geosmithia morbida''. Species in the genus are generally similar to those in ''Penicillium'', but can be distinguished from them by forming cylindrical conidia from rough-walled phialides. Additionally, the conidia of ''Geosmithia'' do not have a green color, in contrast to the characteristic blue-grey or green-grey conidia of ''Penicillium''. Some ''Geosmithia'' species have teleomorphic forms that are classified in the genus ''Talaromyces''. However, ''Geosmithia'' is a polyphyletic taxon with evolutionary affinities to at least three groups of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosmithia Brunnea
''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important black walnut (''Juglans nigra'') populations in North America, is caused by ''Geosmithia morbida''. Species in the genus are generally similar to those in ''Penicillium'', but can be distinguished from them by forming cylindrical conidia from rough-walled phialides. Additionally, the conidia of ''Geosmithia'' do not have a green color, in contrast to the characteristic blue-grey or green-grey conidia of ''Penicillium''. Some ''Geosmithia'' species have teleomorphic forms that are classified in the genus ''Talaromyces''. However, ''Geosmithia'' is a polyphyletic taxon with evolutionary affinities to at least three groups of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thousand Cankers Disease
Thousand cankers disease (TCD) is a recently recognized disease of certain walnuts (''Juglans'' spp.). The disease results from the combined activity of the walnut twig beetle (''Pityophthorus juglandis'') and a canker producing fungus, '' Geosmithia morbida''. Until July 2010 the disease was only known to the western United States where over the past decade it has been involved in several large scale die-offs of walnut, particularly black walnut, ''Juglans nigra''. However, in late July 2010 a well-established outbreak of the disease was found in the Knoxville, Tennessee area. This new finding is the first locating it within the native range of its susceptible host, black walnut. In 2013, an outbreak was found in the Veneto region of Italy, where the disease has been found on both black walnut and English walnut. Description Adult walnut twig beetles carry spores of the ''Geosmithia morbida'' fungus, which grows profusely around the pupal chamber of the beetles. Following emerg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |