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首页> 美国卫生研究院文献>The Plant Pathology Journal >Detection of Multiple Potato Viruses in the Field Suggests Synergistic Interactions among Potato Viruses in Pakistan
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Detection of Multiple Potato Viruses in the Field Suggests Synergistic Interactions among Potato Viruses in Pakistan

机译：在野外检测到多种马铃薯病毒表明巴基斯坦马铃薯病毒之间存在协同相互作用

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Viral diseases have been a major limiting factor threating sustainable potato (Solanum tuberosum L.) production in Pakistan. Surveys were conducted to serologically quantify the incidence of RNA viruses infecting potato; Potato virus X (PVX), Potato virus Y (PVY), Potato virus S (PVS), Potato virus A (PVA), Potato virus M (PVM) and Potato leaf roll virus (PLRV) in two major potato cultivars (Desiree and Cardinal). The results suggest the prevalence of multiple viruses in all surveyed areas with PVY, PVS and PVX dominantly widespread with infection levels of up to 50% in some regions. Co-infections were detected with the highest incidence (15.5%) for PVX and PVS. Additionally the data showed a positive correlation between co-infecting viruses with significant increase in absorbance value (virus titre) for at least one of the virus in an infected plant and suggested a synergistic interaction. To test this hypothesis, glasshouse grown potato plants were challenged with multiple viruses and analyzed for systemic infections and symptomology studies. The results obtained conclude that multiple viral infections dramatically increase disease epidemics as compared to single infection and an effective resistance strategy in targeting multiple RNA viruses is required to save potato crop.
机译：病毒性疾病一直是威胁巴基斯坦可持续马铃薯（Solanum tuberosum L.）生产的主要限制因素。进行了调查，从血清学上定量了感染马铃薯的RNA病毒的发生率。两种主要马铃薯品种（Desiree和马铃薯）中的马铃薯X病毒（PVX），马铃薯Y病毒（PVY），马铃薯S病毒（PVS），马铃薯A病毒（PVA），马铃薯M病毒（PVM）和马铃薯卷叶病毒（PLRV）。红衣主教）。结果表明，PVY，PVS和PVX在所有调查区域中普遍存在多种病毒，某些地区的感染率高达50％。对于PVX和PVS，共感染的发生率最高（15.5％）。另外，数据显示出被感染植物中至少一种病毒的共感染病毒与吸光度值（病毒效价）显着增加之间存在正相关，并暗示了协同相互作用。为了验证这一假设，对温室种植的马铃薯植株进行了多种病毒的攻击，并对其进行了全身感染和症状学分析。获得的结果得出结论，与单次感染相比，多次病毒感染显着增加了疾病的流行，并且需要一种针对多种RNA病毒的有效抗药性策略来拯救马铃薯。

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