翻訳と辞書 |
Brenneria salicis : ウィキペディア英語版 | Brenneria salicis
''Brenneria salicis'' is a Gram-negative bacterium that is pathogenic on plants. The bacterium is known to cause 'watermark disease' in willow (''Salix'' ssp.) trees. Watermark disease affects infected trees by occluding the xylem vessels, impeding circulation. Early signs of the disease are wilting or dried-out, dead leaves on intermittent branches throughout the tree's crown. Cross sections from affected branches show a watery, transparent discoloration to an orange-brown staining in the wood. Cross sections of a killed tree's main stem are blanched completely white.〔PCR-Based Detection of the Causal Agent of Watermark Disease in Willows, authors: L. Hauben, M. Steenackers, and J. Swings; Applied and Environmental Microbiology, October 1998, p.3966-3971, Vol.64, No.10〕〔Willow Resistance to the Watermark Disease, author: M. Steenackers. http://www.inbo.be/content/page.asp?pid=EN_SUS_FOR_FRM_IMP_willows_path〕 The white willow, ''S. alba'', is very sensitive to watermark disease, while the crack willow, ''S. fragilis'', is considerably less so. Hybrids of these two species have shown intermediate sensitivity.〔 == References ==
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「Brenneria salicis」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.
|
|