| 词条 | Phellinus weirii | ||
| 释义 |
| image = Phellinus weirii.jpg | image_caption = Fruit bodies of Phellinus weirii | regnum = Fungi | divisio = Basidiomycota | classis = Agaricomycetes | ordo = Hymenochaetales | familia = Hymenochaetaceae | genus = Phellinus | species = P. weirii | binomial = Phellinus weirii | binomial_authority = (Murrill) Gilb. (1974) | synonyms_ref = | synonyms = *Fomitiporia weirii Murrill (1914)
}}Phellinus weirii is a plant pathogen causing laminated root rot in certain conifers, typically Douglas-fir and western redcedar.[1] It is widespread in the Douglas-fir growing regions of British Columbia, Washington and Oregon.[2] OverviewSymptoms of fungal infection are readily recognized when timber is cut because a brown stain will appear on the butt cut. In early stages it will be just a spot in the heart wood, but as the disease advances it will extend most of the way around the heart wood, and in extreme cases may result in a hollow stump. Usually it is not observed more than a few feet above ground level. Losses due to the fungus are estimated at 4.4 million m3 (157 million ft3) of timber in the Northwestern United States and in British Columbia.[3] Reduced growth rate is an attribute of tree infection.[4] Particular attention is invited to the growth ring patterns visible in the images attached. References1. ^{{cite web|title=Laminated root rot |author=Natural Resources Canada |url=http://www.pfc.cfs.nrcan.gc.ca/pathology/rootd/laminated_e.html |accessdate=2008-10-04 |deadurl=yes |archiveurl=https://web.archive.org/web/20060902084947/http://www.pfc.cfs.nrcan.gc.ca/pathology/rootd/laminated_e.html |archivedate=September 2, 2006 }} 2. ^{{cite web | title = Forest Pathology: Laminated Root Rot | publisher = Canadian Forest Service | url =http://www.pfc.forestry.ca/pathology/rootd/laminated_e.html | accessdate = 2007-07-16 |archiveurl = https://web.archive.org/web/20070415081933/http://pfc.forestry.ca/pathology/rootd/laminated_e.html |archivedate = 2007-04-15}} 3. ^{{cite web | title = Laminated Root Rot of Western Conifers | publisher = U.S. Department of Agriculture | url = http://www.fs.fed.us/r6/nr/fid/fidls/fidl159.htm | accessdate = 2007-07-16}} 4. ^http://www.fs.fed.us/pnw/pubs/gtr349/gtr349b.pdf }}{{Taxonbar|from=Q7181237}}{{Agaricomycetes-stub}} 5 : Fungal conifer pathogens and diseases|Phellinus|Fungi described in 1914|Fungi of North America|Taxa named by William Alphonso Murrill |
||
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。