树木病理学的新问题——新的侵袭性病原体

Q4 Agricultural and Biological Sciences
R. Drenkhan, K. Adamson, Tiia Drenkhan, A. Agan, Marili Laas
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引用次数: 2

摘要

在过去的几十年里,一些新的和入侵的树木病原体已经到达北欧,破坏森林和青翠的树木。新物种和入侵物种(如Lecanosticta acicola、Dothistroma septosporum、Diplodia sapinea、Hymenoscyphus fraxineus)被认为是造成经济损失和生物多样性的重要威胁。外来物种一旦进入生态系统,就很难被消灭。因此,尽早从森林和进口植物材料中发现新的和侵入性病原体是很重要的。出于这个原因,爱沙尼亚森林病理学家的研究小组制定了一项调查策略,在爱沙尼亚各地建立了永久性的地块——用于早期发现新的病原体,这基本上包括对病原体的分子监测。在开发新型和侵袭性病原体的早期检测方法中,一个重要的任务是通过创建原始PCR引物来开发快速检测方法。同样重要的是病原体生物学的分析,它们的传播和在北欧的新环境中发现所有潜在的宿主。在与外国伙伴的合作研究中,爱沙尼亚森林病理学家分析了septosporum、L. acicola和H. fraxineus的种群。种群遗传方法提供了有关病原体多样性、生命力的数据,并揭示了它们进入北欧的潜在途径。这些信息有助于建立控制策略,并有助于发现和测试具有抗性的树种后代。早期发现、分子监测和新的侵入性病原体的途径检测是目前爱沙尼亚生命科学大学森林病理学小组最重要的研究任务。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
New problems in dendropathology – new and invasive pathogens
Abstract During the last decades, several new and invasive tree pathogens have arrived in the northern Europe, damaging forest and verdant trees. New and invasive species (e.g. Lecanosticta acicola, Dothistroma septosporum, Diplodia sapinea, Hymenoscyphus fraxineus) are considered to cause economic loss and be an important threat to biodiversity. Once the alien species have entered into ecosystem, then it is very difficult to eliminate them. Therefore, it is important to discover new and invasive pathogens from forests and from imported plant material as early as possible. For that reason, the research team of Estonian forest pathologists has worked out a survey strategy with permanent plots across Estonia – for early detection of new pathogens, which essentially includes molecular monitoring of pathogens. An important task in developing of early detection methods for new and invasive pathogens is working out of quick detection methods by creating original PCR primers. Crucial is also the analyses of pathogens biology, of their spreading and finding of all their potential hosts in new for them environment in northern Europe. In cooperation studies with our foreign partners, the Estonian forest pathologists have analysed populations of D. septosporum, L. acicola and H. fraxineus. The population genetic methods give data about the pathogens diversity, vitality and betray potential pathways of them to northern Europe. This information serves for building up the control strategy and helps to find and test resistant tree species progenies. Early detection, molecular monitoring and pathways detection of new and invasive pathogens are currently the most important research tasks of the forest pathology team working in Estonian University of Life Sciences.
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来源期刊
Forestry Studies
Forestry Studies Agricultural and Biological Sciences-Forestry
CiteScore
0.70
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