| 词条 | Chrysomyxa pirolata |
| 释义 |
|image = |regnum = Fungi |phylum = Basidiomycota |classis = Pucciniomycetes |ordo = Pucciniales |familia = Coleosporiaceae |genus = Chrysomyxa |species = C. pirolata |binomial = Chrysomyxa pirolata |binomial_authority = Wint. |synonyms = }} The spruce cone rust, caused by the rust fungus Chrysomyxa pirolata Wint., affects spruces in 3 continents, including white spruce in Canada (Hiratsuka 1987).[1] Alternate hosts of the fungus are several species among 3 genera of wintergreen: Pyrola spp., Orthilia spp., and Moneses spp. (Ziller 1974, Sutherland et al. 1984).[2][3] Diseased cones open prematurely and orange-yellow aeciospores are sometimes produced in such quantity as to color the forest floor and lake surfaces. Up to half of a cone crop can be affected, and most of the affected cones do not produce viable seed. Some localities commonly experience damage to 20% to 30% of cone crops (Hiratsuka 1987),[1] a factor to be considered in the siting of seed orchards. References1. ^1 Hiratsuka, Y. 1987. Forest tree diseases of the prairie provinces. Gov’t Can., Can. For. Serv., Edmonton AB, Inf. Rep. NOR-X-286. 142 p. {{Taxonbar|from=Q19596367}}{{Basidiomycota-stub}}2. ^Ziller, W.G. 1974. The tree rusts of western Canada. Environ. Can., Can. For. Serv., Ottawa ON, Publ. 1329. 272 p. 3. ^Sutherland, J.R.; Woods, T.A.D.; Miller, G.E. 1984. Effect of selected insecticides and fungicides on germination of Douglas-fir and white spruce pollen. USDA, For. Serv., Tree Plant. Notes 35(1):22–24. (Cited in Coates et al. 1994). 3 : Pucciniales|Fungal plant pathogens and diseases|Chrysomyxa |
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