| 翻訳と辞書 |
| Macrophomina phaseolina ： ウィキペディア英語版 |
Macrophomina phaseolina
''Macrophomina phaseolina'' is a Botryosphaeriaceae fungus that is a plant pathogen that causes charcoal rot on many plant species including ''Zea mays'' and ''Pinus elliottii''.
== Occurrence, distribution and symptoms==
Macrophomina phaseolina (Tassi) Goidanich causes seedling blight, root rot, and charcoal rot of more than 500 crop and non-crop species (Smith and Carvil 1977). It has a very wide distribution covering most of the tropics and subtropics, extending well into temperate zones having occurrence as far north as the United Kingdom and as far south as New Zealand (Songa 1995). It is an important pathogen of crops particularly where high temperatures and water stress occurs during the growing season. The typical symptoms of the disease are like those described by Smith and Carvil (1977) for soybean: “In soybean, charcoal rot disease symptoms appear in midsummer during high temperature and low soil moisture when the plant is stressed. Initial infections occur at seedling stage but remain latent until the soybean plant approaches maturity. Plants may wilt and die. Sloughing of cortical and tap root tissues occur with characteristic black speckled appearance due to the presence of sclerotia.” Necrotic spots may also appear on the leaves of some plants due to a translocatable toxin (Chan and Sackston 1973, Day 1993) that may be responsible for the rot symptoms sometimes without being able to see other signs. Such toxins from cultures and diseased plants have been shown to produce typical rot symptoms (Dhingra and Sinclair 1974, Day 1993).
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「Macrophomina phaseolina」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.
|
|