相关实验视频

Updated: May 5, 2026

Transmitting Plant Viruses Using Whiteflies

Transmitting Plant Viruses Using Whiteflies

Published on: November 8, 2013

描述来自佛罗里达州的棕病原体Thielaviopsis物种

Marie-Gabrielle Ayika¹, Avril Rosano², Jacqueline Valiente³

¹Department of Plant Pathology, Fort Lauderdale Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Davie, FL 33314, USA.

Journal of fungi (Basel, Switzerland)

|April 26, 2024

概括

这项研究揭示了Thielaviopsis paradoxa sensu lato感染佛罗里达州棕树的两个不同的类型. 一个类被确定为Thielaviopsis ethacetica,而另一个可能代表一种新物种,突出显著的真菌多样性.

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.
菌类遗传学菌类遗传学

背景情况:

泰拉维opsis paradoxa sensu lato导致破坏性的泰拉维opsis树干和手掌中的心脏腐烂,导致突然崩并对生命和财产构成风险.
现有的关于棕树Thielaviopsis感染过程的知识是有限的,在美国没有对T. paradoxa物种复合物的表征.

研究的目的:

为了描述Thielaviopsis paradoxa sensu lato在佛罗里达州从患病的棕树中获得的隔离物.
研究不同T. paradoxa类的遗传多样性,生长特征,病原性和杀菌剂敏感性.

主要方法:

使用ITS,β-tubulin和tef1-α基因序列进行多部位遗传学分析.
评估不同介质和温度的殖民地形态和生长率.
对整个植物的致病性测定和真菌杀菌剂敏感性的评估.

主要成果:

遗传学分析将分离物分为两个不同的分类:一个被确定为Thielaviopsis ethacetica,另一个可能代表未被描述的物种.
在不同温度下观察到分类之间不同的生长速度和殖民地形态,其中T. ethacetica在35°C生长,另一个在10°C生长.
乙菌表现出更高的致病性,在受伤的手掌叶片上引起更大的病变,并表现出不平等的交配型等位基因分布.

结论:

这项研究证实,佛罗里达州至少有两种不同的Thielaviopsis菌群感染棕树,包括T. ethacetica和一种潜在的新物种.
这些类之间存在生长,致病性和杀菌剂反应的显著差异,需要定制的管理策略.
进一步在美国棕种植地区进行有针对性的采样对于充分了解Thielaviopsis物种的多样性及其对棕健康的影响至关重要.

关键词:

提拉维奥普西斯 (Thielaviopsis ethacetica) 是一种有毒的植物.隐秘的物种是神秘的物种.杀菌剂是一种杀菌剂.高温应力压力是什么高温应力压力交配类型的交配类型病原性病原性病原性伤害伤害伤害伤害的伤害

更多相关视频

Fluorescence in situ Hybridizations FISH for the Localization of Viruses and Endosymbiotic Bacteria in Plant and Insect Tissues

Fluorescence in situ Hybridizations FISH for the Localization of Viruses and Endosymbiotic Bacteria in Plant and Insect Tissues

Published on: February 24, 2014

Sampling for Estimating Frankliniella Species Flower Thrips and Orius Species Predators in Field Experiments

Sampling for Estimating Frankliniella Species Flower Thrips and Orius Species Predators in Field Experiments

Published on: July 17, 2019

相关概念视频

Diversity of Protists I

Diversity of Protists I

Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...