Argentinian potato leafroll virus P0 protein: Novel activities for a previously known suppressor

The mechanisms of transmission of potato viruses from plants to aphid vectors and from aphids to uninfected plants are described, including the example of the green peach aphid (Myzus persicae, GPA). Factors affecting the spreading of tuber necrosis and its manifestation on plants infected with potato leafroll virus (PLRV) are discussed. Recommendations for PLRV and GPA control in the field are given.

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Nucleotide sequence of the potato leafroll virus coat protein gene

Nucleic Acids Research ◽

10.1093/nar/17.4.1768 ◽

1989 ◽

Vol 17 (4) ◽

pp. 1768-1768 ◽

Cited By ~ 2

Author(s):

B. Prill ◽

E. Maiss ◽

U. Timpe ◽

R. Casper

Keyword(s):

Nucleotide Sequence ◽

Coat Protein ◽

Coat Protein Gene ◽

Protein Gene ◽

Potato Leafroll Virus ◽

Virus Coat Protein ◽

Virus Coat ◽

Leafroll Virus

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Host-Dependent Requirement for the Potato leafroll virus 17-kDa Protein in Virus Movement

Molecular Plant-Microbe Interactions ◽

10.1094/mpmi.2002.15.10.1086 ◽

2002 ◽

Vol 15 (10) ◽

pp. 1086-1094 ◽

Cited By ~ 47

Author(s):

Lawrence Lee ◽

Peter Palukaitis ◽

Stewart M. Gray

Keyword(s):

Amino Acids ◽

Solanum Tuberosum ◽

Nicotiana Benthamiana ◽

Systemic Infection ◽

Potato Leafroll Virus ◽

Virus Movement ◽

Wild Type ◽

Mature Leaves ◽

Leafroll Virus ◽

Virus Distribution

The requirement for the 17-kDa protein (P17) of Potato leafroll virus (PLRV) in virus movement was investigated in four plant species: potato (Solanum tuberosum), Physalis floridana, Nicotiana benthamiana, and N. clevelandii. Two PLRV P17 mutants were characterized, one that does not translate the P17 and another that expresses a P17 missing the first four amino acids. The P17 mutants were able to replicate and accumulate in agroinoculated leaves of potato and P. floridana, but they were unable to move into vascular tissues and initiate a systemic infection in these plants. In contrast, the P17 mutants were able to spread systemically from inoculated leaves in both Nicotiana spp., although the efficiency of infection was reduced relative to wild-type PLRV. Examination of virus distribution in N. benthamiana plants using tissue immunoblotting techniques revealed that the wild-type PLRV and P17 mutants followed a similar movement pathway out of the inoculated leaves. Virus first moved upward to the apical tissues and then downward. The P17 mutants, however, infected fewer phloem-associated cells, were slower than wild-type PLRV in moving out of the inoculated tissue and into apical tissues, and were unable to infect any mature leaves present on the plant at the time of inoculation.

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Hairy Nightshade as a Potential Potato leafroll virus (Luteoviridae: Polerovirus) Inoculum Source in Pacific Northwest Potato Ecosystems

Phytopathology ◽

10.1094/phyto-98-9-0985 ◽

2008 ◽

Vol 98 (9) ◽

pp. 985-991 ◽

Cited By ~ 10

Author(s):

R. Srinivasan ◽

J. M. Alvarez

Keyword(s):

Pacific Northwest ◽

Green Peach Aphid ◽

Potato Leafroll Virus ◽

Inoculum Sources ◽

Inoculum Source ◽

Hairy Nightshade ◽

Aphid Density ◽

Temporal And Spatial ◽

Green Peach Aphids ◽

Leafroll Virus

Hairy nightshade, Solanum sarrachoides, is a solanaceous weed found abundantly in Pacific Northwest potato ecosystems. It serves as a reservoir for one of the important potato viruses, Potato leafroll virus (PLRV) (Luteoviridae: Polerovirus), and its most important vector, the green peach aphid, Myzus persicae (Homoptera: Aphididae). Laboratory research indicated an increased green peach aphid settling and performance on S. sarrachoides than on potato. It also revealed that green peach aphids transmitted PLRV more efficiently from S. sarrachoides to potato than from potato to potato. To test the efficiency of S. sarrachoides as an inoculum source in the field, a two season (2004 and 2005) trial was conducted at Kimberly, Idaho. Two inoculum sources, PLRV-infected potato and PLRV-infected S. sarrachoides, were compared in this trial. Green peach aphid density and temporal and spatial PLRV spread were monitored at weekly intervals. Higher densities of green peach aphids were observed on plots with S. sarrachoides and inoculum sources (PLRV-infected S. sarrachoides and potato) than on plots without S. sarrachoides and inoculum sources. PLRV infection in plots with PLRV-infected S. sarrachoides was similar to or slightly higher than in plots with PLRV-infected potato as an inoculum source. Temporal and spatial PLRV spread was similar in plots with either inoculum source. Thus, S. sarrachoides is as efficient as or a better PLRV inoculum source than potato.

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Reaction to the potato leafroll virus (PLRV) in diploid potatoes

Potato Research ◽

10.1007/bf02365537 ◽

1988 ◽

Vol 31 (2) ◽

pp. 289-296 ◽

Cited By ~ 13

Author(s):

K. M. Swiezyński ◽

M. A. Dziewońska ◽

K. Ostrowska

Keyword(s):

Potato Leafroll Virus ◽

Leafroll Virus

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Purification and characterization of potato leafroll virus

Virology ◽

10.1016/0042-6822(79)90523-3 ◽

1979 ◽

Vol 98 (1) ◽

pp. 45-54 ◽

Cited By ~ 45

Author(s):

Adib Rowhani ◽

Richard Stace-Smith

Keyword(s):

Potato Leafroll Virus ◽

Purification And Characterization ◽

Leafroll Virus

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Possible correlations between the characteristics of Potato leafroll virus isolates occurring in different geographical regions in Tunisia

Phytoparasitica ◽

10.1007/s12600-013-0329-6 ◽

2013 ◽

Vol 42 (2) ◽

pp. 259-267 ◽

Cited By ~ 4

Author(s):

Fattouma Djilani Khouadja ◽

Joelle Rouzé-Jouan ◽

Sébastien Guyader ◽

Hatem Fakhfakh

Keyword(s):

Potato Leafroll Virus ◽

Geographical Regions ◽

Leafroll Virus ◽

Virus Isolates

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Resistência de genótipos de batata ao vírus do enrolamento da folha da batata (PLRV) e ao vírus Y (PVY)

Horticultura Brasileira ◽

10.1590/s0102-05362004000300003 ◽

2004 ◽

Vol 22 (3) ◽

pp. 521-524 ◽

Cited By ~ 4

Author(s):

Julio Daniels ◽

Arione da S. Pereira

Keyword(s):

Potato Virus ◽

Potato Virus Y ◽

Rio Grande ◽

Potato Leafroll Virus ◽

Rio Grande Do Sul ◽

Leafroll Virus ◽

Das Elisa

O vírus do enrolamento da folha da batata (Potato leafroll virus, PLRV) e o vírus Y da batata (Potato virus Y, PVY) constituem as principais causas da degenerescência da batata-semente no Brasil. Com o objetivo de determinar, nas condições do Rio Grande do Sul, a resistência de campo de genótipos de batata à infecção por estes vírus, avaliaram-se, na presença de infectores, durante três plantios consecutivos de primavera, 20 cultivares e clones de batata. A detecção dos vírus foi efetuada por meio de testes sorológicos (DAS-ELISA). Pela análise de agrupamento os genótipos foram separados em três grupos para resistência ao PLRV (Elvira, Achat, Bintje, Monalisa, Monte Bonito, Panda e Araucária, resistentes; Baronesa, Asterix, Atlantic, 2CRI-1149-1-78, C-1226-35-80, Astrid, C-1714-7-94, A-1139-12-92, Macaca, Eliza e Santo Amor, suscetíveis; Catucha e Cristal, muito suscetíveis) e em quatro grupos para resistência ao PVY (Asterix, Astrid, Catucha, Cristal, Macaca, Monte Bonito, A-1139-12-92, C-1226-35-80 e C-1714-7-94, resistentes; Baronesa, Santo Amor, Monalisa, Panda e 2CRI-1149-1-78, resistentes intermediários; Bintje, Atlantic, Elvira e Araucária, suscetíveis; Achat e Eliza, muito suscetíveis).

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