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伯克利菌 (Berkeleyomyces rouxiae) - - 一种致病原体,导致烟草的黑色根腐烂

Grażyna Korbecka-Glinka¹, Anna Trojak-Goluch¹, Diana Czarnecka¹

¹Department of Biotechnology and Plant Breeding, Institute of Soil Science and Plant Cultivation-State Research Institute, 24-100 Puławy, Poland.

Pathogens (Basel, Switzerland)

|January 8, 2025

概括

波兰的黑根腐烂是由Berkeleyomyces rouxiae引起的. 这项研究确定了烟草中的B. rouxiae分离物,测试了它们的致病性,并证实了Nicotiana debneyi的耐药性.

科学领域:

植物病理学植物病理学
菌类学菌类学是指菌类学.
农业科学农业科学

背景情况:

黑根腐烂对各种作物构成重大威胁.
致病剂被重新分类为两种物种:伯克利菌 (Berkeleyomyces basicola) 和B. rouxiae.
研究了波兰烟草根的分离物,这些分离物表现出黑色根腐烂症状.

研究的目的:

为了确定负责波兰烟草中黑色根腐烂的真菌物种.
描述这些孤立的形态和生长.
评估它们在烟草上的致病性,并评估耐药性来源.

主要方法:

ITS,ACT和MCM7区域的DNA测序用于物种识别.
遗传学分析以确认物种分配.
菌,内,和克拉米多的形态特征.
对烟草品种弗吉尼亚·乔纳和VRG 10TL的致病性测试.

主要成果:

所有分离物通过DNA测序和遗传学分析被确定为Berkeleyomyces rouxiae.
隔离物生长速度有所变化 (3.85.1毫米/天),并且子大小显示在描述范围内的变化.
四分之三的分离物具有高度致病性,导致严重的疾病并减少烟草干重量.
一个隔离物 (WPT7) 显示出较低的攻击性.
来自Nicotiana debneyi的耐药性被证实对黑色根腐败有效.

结论:

伯克利菌 (Berkeleyomyces rouxiae) 是研究的波兰烟草中黑色根腐烂的致病原体.
病原性在B. rouxiae分离物之间有所不同,其中一些对易受感染的烟草品种构成严重威胁.
尼科蒂安娜·德贝尼 (Nicotiana debneyi) 提供了一种有价值的抵抗这种疾病的来源.

关键词:

伯克利骨髓菌 (Berkeleyomyces rouxiae) 是一种有毒的植物.这就是Chalara elegans.尼科蒂亚纳烟草 (Nicotiana tabacum) 是一种烟草.泰拉维奥普西斯贝西科拉 (Thielaviopsis basicola) 是一个植物.隐秘的物种识别识别密码.病原性病原性病原性

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