| 翻訳と辞書 |
| Heterobasidion annosum ： ウィキペディア英語版 |
Heterobasidion annosum
''Heterobasidion annosum'' is a basidiomycete fungus in the family Bondarzewiaceae. It is considered to be the most economically important forest pathogen in the Northern Hemisphere. ''Heterobasidion annosum'' is widespread in forests in the United States and is responsible for the loss of one billion U.S. dollars annually. This fungus has been known by many different names. Commonly, it is also known as annosum root rot. First described by Fries in 1821, it was known by the name ''Polyporus annosum''. Later, it was found to be linked to conifer disease by Robert Hartig in 1874, and was renamed ''Fomes annosus'' by H. Karsten. Its current name of ''Heterobasidion annosum'' was given by Brefeld in 1888. ''Heterobasidion annosum'' is one of the most destructive diseases of conifers.〔Adomas A, Asiebu FO ,Stenlid J. (2005). Conifer root and butt rot caused by ''Heterobasidion annosum'' (Fr.) Bref. s.l. ''Molecular Plant Pathology'' 6(4): 395–409〕
== Description ==
The fruiting bodies of the fungi, which are also known as basidiocarps, are whitish around the margins, with button shaped pads, and dark brown on the upper surface. This fruiting body is created from mycelium, the mass that forms around the vegetative portion of the a tree body, i.e. that part of the tree with no differentiation like stem, leaves, or in this case roots. Basidiocarps are about 40 cm in diameter and 3.5 cm thick.〔 The lower surface of the fruiting body is made of visible pores that are between 5 mm and 26 mm. Sexual spores are created from the basidiocarps, called basidiospores. Conidiospores occur in the asexual stage and are produced on conidiophores. Conidiospores and basidiospores are both produced by fungus, the latter being more important for infecting the conifers.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Heterobasidion annosum」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|