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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク American foulbrood ： ウィキペディア英語版 American foulbrood American foulbrood (AFB), caused by the spore- forming ''Paenibacillus larvae ssp. larvae'' (formerly classified as ''Bacillus larvae''〔Marian JELINSKI, http://www.apidologie.org/articles/apido/abs/1985/01/Apidologie_0044-8435_1985_16_1_ART0007/Apidologie_0044-8435_1985_16_1_ART0007.html〕), is the most widespread and destructive of the bee brood diseases. == Characteristics == Paenibacillus larvae is a rod-shaped bacterium, which is visible only under a high power microscope. Larvae up to 3 days old become infected by ingesting spores that are present in their food. Young larvae less than 24 hours old are most susceptible to infection. Spores germinate in the gut of the larva and the vegetative form of the bacteria begins to grow, taking its nourishment from the larva. Spores will not germinate in larvae over 3 days old. Infected larvae normally die after their cell is sealed. The vegetative form of the bacterium will die but not before it produces many millions of spores. Each dead larva may contain as many as 100 million spores. This disease only affects the bee larvae but is highly infectious and deadly to bee brood. Infected larvae darken and die.〔(Foul brood disease of honey bees:recognition and control ) Central Science Laboratory National Bee Unit, Department for Environment, Food and Rural Affairs (DEFRA); United Kingdom (''excellent publication with many pictures'')〕〔("Bees Disease: One Step Closer To A Cure." ) ScienceDaily 4 May 2008〕 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「American foulbrood」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.