Cytospora

{{Short description|Genus of fungi}} {{Automatic_taxobox | image = Snowlike (8197957781).jpg | image_alt = Dead spruces that have succumbed to Cytospora canker found in McIntyre Wild Area, Loyalsock State Forest, Lycoming County, Pennsylvania. Resin oozes from the cankers, solidifying into a thick, whitish mass resembling snow or hoar frost. | image_caption = Dead spruces that have succumbed to Cytospora canker found in McIntyre Wild Area, Loyalsock State Forest, Lycoming County, Pennsylvania. Resin oozes from the cankers, solidifying into a thick, whitish mass resembling snow or hoarfrost. | taxon = Cytospora | authority = Ehrenb. | subdivision_ranks = Species | subdivision = Species include: * ''Cytospora elegans'' * ''Cytospora personata'' * ''Cytospora palmarum'' * ''Cytospora platani'' * ''Cytospora sacchari'' * ''Cytospora sacculus'' * ''Cytospora terebinthi'' }}

'''''Cytospora''''' is a genus of ascomycete fungi. The genus was first described in 1818 by Christian Gottfried Ehrenberg.<ref>{{Cite web |title=Index Fungorum - Names Record: ''Cytospora'' |url=https://www.indexfungorum.org/names/NamesRecord.asp?RecordID=7904 |access-date=2022-12-20 |website=www.indexfungorum.org}}</ref><ref>Ehrenberg, C.G. (1818),[https://www.biodiversitylibrary.org/page/4335524 ''Sylvae mycologicae Berolinenses''], [540], as ''Cytispora''</ref> ''Cytospora'' species are known as plant pathogens.

==Pathology== ''Cytospora'' canker was observed by G. B. Ouellette<ref name="ouel2">Ouellette, G.B.; Conway, J.M.; Bard, G. 1965. Fréquence et intensité du chancre cytosporéen dans les plantations d’épinette du Québec. For. Chron. 41(4):444–453.</ref> in all the plantations of white and Norway spruces examined in the Province of Quebec, as well as in some natural stands of indigenous spruce. Disease incidence was particularly high in the Grand-Mère and Saint-Lazare plantations where it had been present since at least 1943 and 1955, respectively. Periods favourable to infection had occurred at fairly regular intervals, and the aggressiveness of canker development varied year by year. Rainfall, temperature, and disease intensity were not clearly correlated.

== References == {{Reflist}}

== External links == * [http://www.speciesfungorum.org/Names/Names.asp?strGenus=Cytospora Index Fungorum] * {{cite web | url = http://www.gbif.net/search/Cytospora | archive-url = https://archive.today/20130801193135/http://www.gbif.net/search/Cytospora | url-status = dead | archive-date = August 1, 2013 | title = Global Biodiversity Information Facility | accessdate = July 30, 2010 | quote = ''Cytospora'' in GBIF }}

Category:Fungal plant pathogens and diseases Category:Diaporthales Category:Sordariomycetes genera Category:Taxa named by Christian Gottfried Ehrenberg