Spatial epidemiology of a vector-borne plant virus: interactions between landscape, hosts, vectors and an emerging disease of potatoes

媒介传播植物病毒的空间流行病学：景观、宿主、媒介和新出现的马铃薯疾病之间的相互作用

• 批准号: BB/L011840/1
• 负责人: Lesley Torrance
• 金额: $ 71.91万
• 依托单位: University of St Andrews
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2013
• 资助国家: 英国
• 起止时间: 2013 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=BB%2FL011840%2F1
• 关键词: Spatial; epidemiology; vector; borne; plant

Potato is the world's third most important staple food and Potato virus Y (PVY) is the most important virus disease in most potato production systems. In the last few decades recombinant strains of PVY have emerged in Europe and more recently in N America that are spreading and are associated with serious tuber damage. Factors responsible for the emergence and spread of these new strains are unknown but PVY is an ideal system to study the ecology and evolution of this infectious disease because all of the components, the virus, the host and the vector, are relatively well characterised. In this project we will investigate genetic, physiological, ecological, evolutionary and environmental factors as a dynamic network of variables affecting disease spread. We will identify the most important variables and how they influence PVY spread within and between potato plants. This project addresses the significant challenges to agricultural production posed by changes in climate and the limitations on the use of agrochemicals in Europe. Potato production requires high levels of inputs to ensure high yields of crop for consumption as well as high quality of seed tuber planting material. PVY and many other virus diseases are transmitted by aphids and the changing weather patterns with warmer, drier summers and warmer, wetter winters is resulting in increasing aphid populations with the earlier arrival of aphids into the crops. The information gained will be used to develop quantitative and predictive models of disease risk in different agro-ecosystems and devise strategies for targeted intervention with agrochemicals for improved disease control. PVY infects a wide range of other crops including vegetables, tobacco and fruit and the underlying concepts, models and disease management tools developed in the project will have broad applicability in other agricultural systems.

马铃薯是世界第三重要的主粮，马铃薯 Y 病毒 (PVY) 是大多数马铃薯生产系统中最重要的病毒病。在过去的几十年里，PVY 重组菌株在欧洲出现，最近在北美出现，这些菌株正在传播并与严重的块茎损害有关。导致这些新毒株出现和传播的因素尚不清楚，但 PVY 是研究这种传染病的生态和进化的理想系统，因为所有组成部分、病毒、宿主和载体都得到了相对较好的表征。在这个项目中，我们将研究遗传、生理、生态、进化和环境因素作为影响疾病传播的变量的动态网络。我们将确定最重要的变量以及它们如何影响马铃薯植株内和植株间的 PVY 传播。该项目解决了气候变化和欧洲农用化学品使用限制对农业生产带来的重大挑战。马铃薯生产需要高水平的投入，以确保消费作物的高产以及块茎种植材料的高质量。 PVY 和许多其他病毒病是由蚜虫传播的，夏季温暖干燥和冬季温暖湿润的气候模式变化导致蚜虫数量增加，蚜虫提前进入农作物。获得的信息将用于开发不同农业生态系统中疾病风险的定量和预测模型，并制定农用化学品有针对性的干预策略以改善疾病控制。 PVY 感染多种其他作物，包括蔬菜、烟草和水果，该项目开发的基本概念、模型和疾病管理工具将在其他农业系统中具有广泛的适用性。

项目成果

Phloem connectivity and transport are not involved in mature plant resistance (MPR) to Potato Virus Y in different potato cultivars, and MPR is ineffective against recombinant strains of the virus.

在不同的马铃薯品种中，韧皮部的连接和运输不参与成熟植物对马铃薯Y病毒的抗性（MPR），并且MPR对该病毒的重组株无效。

• 发表时间: 2022
• 期刊: journal of plant physiology
• 影响因子: 4.3
• 作者: Kumar, P

Different potato virus Y strains frequently co-localize in single epidermal leaf cells and in the aphid stylet.

不同的马铃薯 Y 病毒株经常共存于单个表皮叶细胞和蚜虫管心中。

• DOI: 10.1099/jgv.0.001576
• 发表时间: 2021
• 期刊: The Journal of general virology
• 作者: Mondal S

Mapping Loci That Control Tuber and Foliar Symptoms Caused by PVY in Autotetraploid Potato (Solanum tuberosum L.).

• DOI: 10.1534/g3.117.300264
• 发表时间: 2017-11-06
• 期刊: G3 (Bethesda, Md.)
• 作者: da Silva WL;Ingram J;Hackett CA;Coombs JJ;Douches D;Bryan GJ;De Jong W;Gray S
• 通讯作者: Gray S

Phloem connectivity and transport are not involved in mature plant resistance (MPR) to Potato Virus Y in different potato cultivars, and MPR does not protect tubers from recombinant strains of the virus.

在不同的马铃薯品种中，韧皮部的连接和运输不参与成熟植物对马铃薯Y病毒的抗性（MPR），并且MPR不能保护块茎免受病毒重组株的侵害。

• DOI: 10.1016/j.jplph.2022.153729
• 发表时间: 2022
• 期刊: Journal of plant physiology
• 影响因子: 4.3
• 作者: Kumar P

Mapping Loci that Control Tuber and Foliar Symptoms Caused by PVY in Autotetraploid Potato ( Solanum tuberosum L.)

绘制控制同源四倍体马铃薯 (Solanum tuberosum L.) 中 PVY 引起的块茎和叶部症状的位点

• DOI: 10.1101/156539
• 发表时间: 2017
• 作者: Da Silva W