37 results match your criteria pvy-infected plants

Interspecific interactions within a vector-borne complex are influenced by a co-occurring pathosystem.

Sci Rep 2021 Jan 26;11(1):2242. Epub 2021 Jan 26.

Department of Entomology, Plant Pathology and Nematology, University of Idaho, Aberdeen R&E Center, Aberdeen, ID, 83210, USA.

Potato virus Y (PVY) and zebra chip (ZC) disease are major threats to solanaceous crop production in North America. PVY can be spread by aphid vectors and through vegetative propagation in potatoes. ZC is associated with "Candidatus Liberibacter solanacearum" (Lso), which is transmitted by the tomato/potato psyllid, Bactericera cockerelli Šulc (Hemiptera: Triozidae). Read More

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January 2021

Antiviral Action of Native and Methylated Lactoferrin and β-Lactoglobulin against Potato Virus Y (PVY) Infected into Potato Plants Grown in an Open Field.

Antibiotics (Basel) 2020 Jul 21;9(7). Epub 2020 Jul 21.

Plant Pathology Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt.

Potato plants are liable to PVY infection without efficient control. Therefore, they were cultivated under greenhouse and open field conditions, artificially infected with PVY and then treated after 15 days of infection with native lactoferrin (LF) and native β-lactoglobulin (BL) and their esterified forms, MLF (methylated lactoferrin) and BLM (methylated β-lactoglobulin) to test the efficiency of this approach. Viral replication was inhibited by the applied substances, particularly the methylated forms, in a concentration-dependent manner, where the concentration of 500 μg·mL was sufficient for plant protection against the PVY infection. Read More

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Arbuscular Mycorrhiza Changes the Impact of Potato Virus Y on Growth and Stress Tolerance of L. .

Front Microbiol 2019 15;10:2971. Epub 2020 Jan 15.

Department of Microbiology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Toruń, Poland.

Under the field conditions crop plants interact with diverse microorganisms. These include beneficial (symbiotic) and phytopathogenic microorganisms, which jointly affect growth and productivity of the plants. In last decades, production of potato ( L. Read More

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January 2020

Rapid and sensitive detection of potato virus Y by isothermal reverse transcription-recombinase polymerase amplification assay in potato.

Mol Cell Probes 2020 04 2;50:101505. Epub 2020 Jan 2.

National Center for Vegetable Improvement (Central China), Key Laboratory of Potato Biology and Biotechnology, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, 430070, China. Electronic address:

In this study, an isothermal reverse transcription-recombinase polymerase amplification (RT-RPA) assay was developed for the efficient and accurate detection of potato virus Y (PVY) under isothermal conditions. This RT-RPA assay was more efficient than the conventional reverse transcription-polymerase chain reaction (RT-PCR) assay as the amplification reaction can be completed in less than 20 min. Moreover, unlike PCR that requires a thermocycler to carry out the DNA amplification through specific temperature phases, RPA assay could be performed under an isothermal condition at a temperature ranging from 25 to 40 °C. Read More

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Potato Virus Y Infection Alters Small RNA Metabolism and Immune Response in Tomato.

Viruses 2019 11 27;11(12). Epub 2019 Nov 27.

Consiglio Nazionale delle Ricerche, Istituto per la Protezione Sostenibile delle Piante, G. Via Amendola 122/D, 70126 Bari, Italy.

(PVY) isolate PVY-to induces growth reduction and foliar symptoms in tomato, but new vegetation displays symptom recovery at a later stage. In order to investigate the role of micro(mi)RNA and secondary small(s)RNA-regulated mechanisms in tomato defenses against PVY, we performed sRNA sequencing from healthy and PVY-to infected tomato plants at 21 and 30 days post-inoculation (dpi). A total of 792 miRNA sequences were obtained, among which were 123 canonical miRNA sequences, many isomiR variants, and 30 novel miRNAs. Read More

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November 2019

Effects of the Age-Related Resistance to in Potato on the Systemic Spread of the Virus, Incidence of the Potato Tuber Necrotic Ringspot Disease, Tuber Yield, and Translocation Rates Into Progeny Tubers.

Plant Dis 2020 Jan 20;104(1):269-275. Epub 2019 Nov 20.

Department of Entomology, Plant Pathology, and Nematology, University of Idaho, Moscow, ID 83844-2329.

The recombinant strain of potato virus Y (PVY), PVY, is the main cause of the potato tuber necrotic ringspot disease (PTNRD) in susceptible potato cultivars, which reduces the quality of potato tubers, in addition to the yield loss. Control of PVY has been the main challenge in most potato-producing areas. Here, the effects of the age-related resistance (ARR) were investigated in transplants of a potato cultivar Yukon Gold to the infection with PVY strain in greenhouse experiments. Read More

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January 2020

Ethylene signaling mediates potyvirus spread by aphid vectors.

Oecologia 2019 May 8;190(1):139-148. Epub 2019 May 8.

Department of Plant Pathology, University of California, Davis, CA, 95616, USA.

Plant pathogens can influence host characteristics such as volatile emissions, nutrient composition or plant color, modulating vector and non-vector insect dynamics in the ecosystem. While previous research has focused on insect attraction and dispersal to infected plants, little is known about mechanisms mediating these interactions. Here, we investigate the role of ethylene in green peach aphid (Myzus persicae) attraction to potyvirus-infected plants. Read More

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Preference of the aphid Myzus persicae (Hemiptera: Aphididae) for tobacco plants at specific stages of potato virus Y infection.

Arch Virol 2019 Jun 3;164(6):1567-1573. Epub 2019 Apr 3.

Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China.

Potato virus Y (PVY) is a common pathogen affecting agricultural production worldwide and is mainly transmitted by Myzus persicae in a non-persistent manner. Insect-borne plant viruses can modify the abundance, performance, and behavior of their vectors by altering host plant features; however, most studies have overlooked the fact that the dynamic progression of virus infection in plants can have variable effects on their vectors. We addressed this point in the present study by dividing the PVY infection process in tobacco into three stages (early state, steady state and late state); delineated by viral copy number. Read More

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The Titre of the Virus in the Inoculum Affects the Titre of the Viral RNA in the Host Plant and the Occurrence of the Disease Symptoms.

Acta Chim Slov 2019 Feb;66(1):45-49

Potato virus Y (PVY) is the most economically important potato virus, therefore extensive research is focusing on elucidation of its interaction with the host. To obtain repeatable results, strict standardization of research methods is crucial. Mechanical inoculation by rubbing sap from a PVY infected plant onto the leaf surface together with a fine abrasive powder is the most convenient way of experimental transmission of PVY to host plants. Read More

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February 2019

Integrating Spectroscopy with Potato Disease Management.

Plant Dis 2018 11 20;102(11):2233-2240. Epub 2018 Aug 20.

Department of Forest and Wildlife Ecology, University of Wisconsin-Madison.

Spectral phenotyping is an efficient method for the nondestructive characterization of plant biochemical and physiological status. We examined the ability of a full range (350 to 2,500 nm) of foliar spectral data to (i) detect Potato virus Y (PVY) and physiological effects of the disease in visually asymptomatic leaves, (ii) classify different strains of PVY, and (iii) identify specific potato cultivars. Across cultivars, foliar spectral profiles of PVY-infected leaves were statistically different (F = 96. Read More

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November 2018

Effect of Potato virus Y Presence in Solanum tuberosum (Solanales: Solanaceae) and Chenopodium album on Aphid (Hemiptera: Aphididae) Behavior.

Environ Entomol 2018 06;47(3):654-659

Departamento de Protección Vegetal, Instituto de Ciencias Agrarias, Consejo Superior de Investigaciones Científicas (CSIC), Spain.

This study establishes the effect of Potato Virus Y (PVY; Potyvirus) in potatoes, Solanum tuberosum L. (Solanales: Solanaceae) and in common-lambs' quarter Chenopodium album L. (Amaranthaceae) on Macrosiphum euphorbiae Thomas (Hemiptera: Aphididae) and Myzus persicae Sulzer (Hemiptera: Aphididae) behavior, host preference, transmission, and fitness under field and laboratory studies. Read More

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Silencing the tobacco gene for RNA-dependent RNA polymerase 1 and infection by potato virus Y cause remodeling of cellular organelles.

Virology 2017 10 15;510:127-136. Epub 2017 Jul 15.

James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK; Department of Horticultural Sciences, Seoul Women's University, Nowon-gu, Seoul 01797, Republic of Korea. Electronic address:

RNA-dependent RNA polymerase 1 (RDR1) has been shown to be involved in DNA methylation, RNA silencing and regulating expression of other genes. RDR1 gene expression is stimulated by infection with potato virus Y° (PVY). Transgenic Nicotiana tabacum plants silenced for RDR1 gene expression showed morphological changes in mesophyll cells, associated with remodeling of the nuclei, chloroplasts and mitochondria. Read More

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October 2017

Interaction between PVY HC-Pro and the NtCF1β-subunit reduces the amount of chloroplast ATP synthase in virus-infected tobacco.

Sci Rep 2015 Oct 26;5:15605. Epub 2015 Oct 26.

State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China.

The photosynthetic rate of virus-infected plants is always reduced. However, the molecular mechanism underlying this phenomenon remains unclear. The helper component-proteinase (HC-Pro) of Potato virus Y (PVY) was found in the chloroplasts of PVY-infected tobacco, indicating some new function of HC-Pro in the chloroplasts. Read More

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October 2015

Potato virus Y HC-Pro Reduces the ATPase Activity of NtMinD, Which Results in Enlarged Chloroplasts in HC-Pro Transgenic Tobacco.

PLoS One 2015 26;10(8):e0136210. Epub 2015 Aug 26.

State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, P.R. China.

Potato virus Y (PVY) is an important plant virus and causes great losses every year. Viral infection often leads to abnormal chloroplasts. The first step of chloroplast division is the formation of FtsZ ring (Z-ring), and the placement of Z-ring is coordinated by the Min system in both bacteria and plants. Read More

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Increased sensitivity of RT-PCR for Potato virus Y detection using RNA isolated by a procedure with differential centrifugation.

J Virol Methods 2015 Dec 22;225:49-54. Epub 2015 Jul 22.

Potato Research Center, 850 Lincoln Rd, Fredericton, New Brunswick E3B 4Z7, Canada. Electronic address:

The sensitivity of reverse transcription-polymerase chain reaction (RT-PCR) for virus detection is influenced by many factors such as specificity of primers and quality of templates. These factors become extremely important for successful detection when virus concentration is low. Total RNA isolated from Potato virus Y (PVY)-infected potato plants using the sodium sulfite RNA isolation method or RNeasy plant mini kit contains a high proportion of host RNA and may also contain trace amount of phenolic and polysaccharide residues, which may inhibit RT-PCR. Read More

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December 2015

Helper component-proteinase enhances the activity of 1-deoxy-D-xylulose-5-phosphate synthase and promotes the biosynthesis of plastidic isoprenoids in Potato virus Y-infected tobacco.

Plant Cell Environ 2015 Oct 27;38(10):2023-34. Epub 2015 Apr 27.

State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China.

Virus-infected plants show strong morphological and physiological alterations. Many physiological processes in chloroplast are affected, including the plastidic isoprenoid biosynthetic pathway [the 2C-methyl-D-erythritol-4-phosphate (MEP) pathway]; indeed, isoprenoid contents have been demonstrated to be altered in virus-infected plants. In this study, we found that the levels of photosynthetic pigments and abscisic acid (ABA) were altered in Potato virus Y (PVY)-infected tobacco. Read More

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October 2015

Potato virus Y: Contact Transmission, Stability, Inactivation, and Infection Sources.

Plant Dis 2015 Mar;99(3):387-394

Crop Protection Branch, Department of Agriculture and Food Western Australia, Locked Bag No. 4, Bentley Delivery Centre, Perth, WA 6983, Australia, and School of Plant Biology and Institute of Agriculture, Faculty of Science, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia.

In glasshouse experiments, two isolates of Potato virus Y 'O' strain (PVY) were transmitted from infected to healthy potato plants by direct contact when leaves were rubbed against each other, when cut surfaces of infected tubers were rubbed onto leaves, and to a limited extent, when blades contaminated with infective sap were used to cut healthy potato tubers. However, no tuber-to-tuber transmission occurred when blades were used to cut healthy tubers after cutting infected tubers. When leaf sap from potato plants infected with two PVY isolates was kept at room temperature, it was highly infective for 6 to 7 h and remained infectious for up to 28 h. Read More

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Stopped in its tracks: how λ-cyhalothrin can break the aphid transmission of a potato potyvirus.

Pest Manag Sci 2015 Dec 26;71(12):1611-6. Epub 2015 Jan 26.

The James Hutton Institute, Invergowrie, Dundee, UK.

Background: Pyrethroids are one of the most widespread and commonly used classes of insecticide and are used in multiple roles, including protecting potato crops from virus vector aphids. Resistance in some genotypes of a few species is now widespread, but most species remain susceptible. The rate of virus transmission by two genotypes of the peach potato aphid, Myzus persicae, fed on potato virus Y (PVY)-infected leaves of potato treated with the pyrethroid λ-cyhalothrin was evaluated. Read More

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December 2015

Comparative analysis of virus-specific small RNA profiles of three biologically distinct strains of Potato virus Y in infected potato (Solanum tuberosum) cv. Russet Burbank.

Virus Res 2014 Oct 15;191:153-60. Epub 2014 Jul 15.

Department of Plant Pathology, Washington State University, Pullman, WA, USA. Electronic address:

Deep sequencing technology has enabled the analysis of small RNA profiles of virus-infected plants and could provide insights into virus-host interactions. Potato virus Y is an economically important viral pathogen of potato worldwide. In this study, we investigated the nature and relative levels of virus-derived small interfering RNAs (vsiRNAs) in potato cv. Read More

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October 2014

Virus strains differentially induce plant susceptibility to aphid vectors and chewing herbivores.

Oecologia 2014 Mar 1;174(3):883-92. Epub 2013 Nov 1.

Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, 14853, USA,

Plants are frequently attacked by both pathogens and insects, and an attack from one can induce plant responses that affect resistance to the other. However, we currently lack a predictive framework for understanding how pathogens, their vectors, and other herbivores interact. To address this gap, we have investigated the effects of a viral infection in the host plant on both its aphid vector and non-vector herbivores. Read More

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Oxylipin biosynthesis genes positively regulate programmed cell death during compatible infections with the synergistic pair potato virus X-potato virus Y and Tomato spotted wilt virus.

J Virol 2013 May 13;87(10):5769-83. Epub 2013 Mar 13.

Departamento de Biología Medioambiental, Centro de Investigaciones Biológicas, CSIC, Madrid, Spain.

One of the most severe symptoms caused by compatible plant-virus interactions is systemic necrosis, which shares common attributes with the hypersensitive response to incompatible pathogens. Although several studies have identified viral symptom determinants responsible for systemic necrosis, mechanistic models of how they contribute to necrosis in infected plants remain scarce. Here, we examined the involvement of different branches of the oxylipin biosynthesis pathway in the systemic necrosis response caused either by the synergistic interaction of Potato virus X with Potato virus Y (PVX-PVY) or by Tomato spotted wilt virus (TSWV) in Nicotiana benthamiana. Read More

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Modulation of Aphid Vector Activity by Potato virus Y on In Vitro Potato Plants.

Plant Dis 2012 Jan;96(1):82-86

Université de Picardie Jules Verne, Laboratoire de Biologie des Entomophages, 80039 Amiens Cedex, France.

The effects of the infection of potato (Solanum tuberosum) plants by the nonpersistent Potato virus Y (PVY) were studied on the host plant colonization behavior of different colonizing (Myzus persicae) and noncolonizing (Aphis fabae, Brevicoryne brassicae, and Sitobion avenae) aphid species. The underlying questions of this study were to know how aphids respond when faced with PVY-infected plants and whether plant infection can modify the aphid behavior involved in PVY spread. Short-range orientation behavior was observed using a dual-choice set-up and aphid feeding behavior was monitored using the electrical penetration graph technique. Read More

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January 2012

Assessing aphids potato virus Y-transmission efficiency: A new approach.

J Virol Methods 2011 Dec 22;178(1-2):63-7. Epub 2011 Aug 22.

GIE, Station de Recherche et de Création Variétale du Comité Nord, 76110 Bretteville-du-Grand-Caux, France.

In order to develop an alternative method to optimize the relative efficiency factor (REF) assessment, the efficiency of transmission of Potato virus Y (PVY) by seven aphid species was examined. In vitro micropropagated potato plantlets were used to experiment on phenotypically and genetically homogeneous material. Species-specific acquisition access period (AAP) on a PVY-infected plantlet was assessed for each aphid species using electrical penetration graph (EPG) technique. Read More

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December 2011

Occurrence and distribution of Potato virus Y strain N (PVY(N)) on celery in Iran.

Commun Agric Appl Biol Sci 2009 ;74(3):849-52

Dept. Plant Pathology, Faculty of Horticulture Science and Plant Protection University of Tehran, Karaj.

Celery (Apium graveolens) is an important crop grown in many countries. Different types of diseases present a major constraint to Celery production and can lead to significant reductions in yield Potato Virus Y, the type member of the genus Potyvirus(family Potyviridae) is one of the causal agents of viral diseases in crops. In the present study, PVY occurring in celery fields was determined as the causal agent of mosaic disease of celery (Apium graveolens). Read More

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Salicylic Acid Suppresses Potato virus Y Isolate N:O-Induced Symptoms in Tobacco Plants.

Xianzhou Nie

Phytopathology 2006 Mar;96(3):255-63

ABSTRACT The effects of salicylic acid (SA) and 1-aminocyclopropane-1-carboxylic acid (ACC) on the systemic development of symptoms induced by a severe isolate of Potato virus Y group N:O (PVY(N:O)) in tobacco were investigated. Upon inoculation, the systemic development of symptoms in tobacco plants could be divided into three stages: virus incubation stage, rapid symptom-progress stage, and partial recovery and symptom-shifting stage. Treatment of seedlings with SA delayed the virus-induced necrosis in stems by 1 to 2 days. Read More

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The HC-pro protein of potato virus Y interacts with NtMinD of tobacco.

Mol Plant Microbe Interact 2007 Dec;20(12):1505-11

State Key Laboratory of Agro-Biotechnology, China Aricultural University, Beijing, P.R. China.

Potato virus Y (PVY) infections often lead to altered numbers of host plant chloroplasts, as well as changes in morphology and inhibited photosynthesis. The multifunctional protein helper component-proteinase, HC-Pro, has been identified in PVY-infected leaf chloroplasts. We used yeast two-hybrid and bimolecular fluorescence complementation assays to demonstrate that HC-Pro can interact with the chloroplast division-related factor NtMinD in yeast and tobacco cells, respectively. Read More

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December 2007

Cytochrome c oxidase mRNA as an internal control for detection of Potato virus Y and Potato leafroll virus from single aphids by a co-amplification RT-PCR assay.

J Virol Methods 2006 Dec 28;138(1-2):152-9. Epub 2006 Sep 28.

Potato Research Centre, Agriculture and Agri-Food Canada, P.O. Box 20280, 850 Lincoln Road, Fredericton, New Brunswick, Canada E3B 4Z7.

Using cytochrome c oxidase subunit 1 (COX1) mRNA as the internal control, a triplex reverse transcription-polymerase chain reaction (RT-PCR) for detection of Potato virus Y (PVY) and Potato leafroll virus (PLRV) with co-amplification of COX1 from single specimens of various aphid species has been developed. Partial length cDNA of COX1 from green peach aphid, Myzus persicae (Sulzer), potato aphid, Macrosiphum euphorbiae (Thomas), buckthorn aphid, Aphis nasturtii (Kaltenbach), and pea aphid, Acyrthosiphom pisum (Harris), was cloned and sequenced. These sequences, together with existing COX1 sequences from other aphid species capable or suspected to be capable of transmitting PVY and/or PLRV, were analyzed. Read More

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December 2006

Use of oils combined with low doses of insecticide for the control of Myzus persicae and PVY epidemics.

Pest Manag Sci 2006 Apr;62(4):372-8

Departamento de Producción Vegetal, Escuela Politécnica Superior, Universidad de Santiago de Compostela, Campus Universitario s/n, E-27002 Lugo, Spain.

Experiments were carried out in the laboratory to assess the insecticidal effect on Myzus persicae Sulzer of different oils applied alone or combined with imidacloprid or pirimicarb. The oils tested were a horticultural mineral oil, a refined rapeseed oil, a refined soya oil and a raw fish oil. When the oils were sprayed alone on pepper plants infested with M. Read More

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Effect of Potato virus Y on Yield of Three Potato Cultivars Grown Under Different Nitrogen Levels.

Plant Dis 2006 Jan;90(1):73-76

Colorado State University, Center 81125.

Previous studies have shown that Potato virus Y (PVY) reduces yield in many cultivars. Typical foliar symptoms can include veinal necrosis, leaf drop, and a mosaic pattern sometimes accompanied by leaf roughness. Infection by PVY in Russet Burbank produces identifiable PVY symptoms, whereas cv. Read More

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January 2006

Correlation of viral RNA biosynthesis with glucose-6-phosphate dehydrogenase activity and host resistance.

Planta 2002 Sep 20;215(5):862-9. Epub 2002 Jun 20.

Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Na Karlovce 1a, 160 00 Praha 6, Czech Republic.

Changes in glucose-6-phosphate dehydrogenase (G6P DH; EC 1.1.1. Read More

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September 2002