Aphid transmission of potato virus S

Wardrop, Elizabeth; Gray, Asa; Singh, R. P.; Peterson, J. F.

doi:10.1007/bf02855437

Cited by 26 publications

(11 citation statements)

References 22 publications

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“…Research in other countries has shown PVS and PVX to be spread predominately by mechanical transmission, e.g., during seed cutting operations (12,17) by contact between plants or from machinery movement within the crop (3,6,14,20). In addition, some strains of PVS are transmitted in a non-persistent manner by some aphid species (29). Weed hosts could also serve as a source of inoculum for PVS and PVX.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Spread of Potato virus S and Potato virus X in Seed Potato in Tasmania, Australia

Lambert

Hay

Pethybridge

et al. 2007

Plant Health Progress

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The spatial and temporal distribution of Potato virus S (PVS) and Potato virus X (PVX) was studied in two trials within each of four commercial fields of seed potato var. Russet Burbank in Tasmania, Australia. In the first trial (plots) 20 leaflets were collected from each of 49 plots (each approximately 8 m wide by 10 m long), with plots arranged in a 7-×-7 lattice. In the second trial (transects), leaflets were collected at 1-m intervals along seven adjacent, 50-m long rows. The mean incidence of PVS increased during the season by 5.2% in one of four plot trials and 25.5% in one of four transect trials. The mean incidence of PVX increased during the season by 10.1%, in one of two transect trials. Spatial Analysis by Distance IndicEs and ordinary runs analysis detected aggregation of PVS infected plants early in the season in one and two fields respectively, suggesting transmission during seed-cutting or during planting. An increase in PVS incidence mid- to late season in one field was associated with aggregation of PVS along, but not across rows, which may be related to the closer plant spacing within rows and hence increased potential for mechanical transmission along rows. Results suggested limited spread of PVS and PVX occurred within crops during the season. Accepted for publication 9 April 2007. Published 26 July 2007.

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Section: Introductionmentioning

confidence: 99%

Spatiotemporal Spread of Potato virus S and Potato virus X in Seed Potato in Tasmania, Australia

Lambert

Hay

Pethybridge

et al. 2007

Plant Health Progress

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“…El hecho que en Colombia aparentemente prevalezcan cepas de la raza PVS A , implica que además de la transmisión por contacto y por tubérculo-semilla que presenta este virus, su dispersión por diferentes especies de áfidos (Wardrop et al 1989), puede jugar un papel importante en la distribución del virus dentro y entre los lotes de cultivo de las diferentes regiones cultivadoras de papa del país.…”

Section: Discussionunclassified

“…En muchas variedades de papa cultivadas en el mundo, el PVS es asintomático o causa síntomas suaves, por lo que se denomina como un virus latente (Salari et al 2011). Sin embargo, sus niveles de incidencia pueden alcanzar hasta el 100% en un cultivo o región, gracias a su eficiente transmisión mecánica, por tubérculos-semilla y por áfidos (Wardrop et al 1989). A pesar de la condición latente de este virus, se ha estimado que puede ocasionar pérdidas en los cultivos de papa, que oscilan entre un 10 y 20% (Rose 1983, Dolby & Jones 1987, Jeffries 1998.…”

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“…PVS A induce síntomas más severos en las plantas infectadas, incluyendo senescencia prematura y pérdida de hojas (Jeffries 1998), además es más eficientemente transmitido por áfidos que aislamientos de PVS O , siendo las especies Myzus persicae, Rhopalosiphum padi, Aphis fabae y A. nasturtii sus vectores principales (Wardrop et al 1989, Lambert et al 2012. Estudios recientes han encontrado variantes de PVS O con capacidad de generar una invasión sistémica en C. quinoa, pero que son filogenéticamente distantes a PVS A (Matoušek et al 2005, Lambert et al 2012) y que por tanto, han recibido la denominación de PVS O -CS (CS: Chenopodium systemic).…”

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Detección serológica y caracterización molecular de <i>Potato virus S</i> (PVS, <i>Carlavirus</i<) en cultivos de papa de Colombia

Gil

Cotes

2013

RBT

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Detection and molecular characterization of Potato virus S (PVS, Carlavirus) from Colombia. In Colombia, potato crops are affected by a wide variety of viruses such as PVY, PLRV, PVX, PMTV and PVS. Unfortunately, there are very few studies on the biology, distribution and pathogenicity of these viruses; this situation is even worse for the latent virus PVS. In this work, we evaluated the presence of PVS in four Colombian provinces (Antioquia, Boyacá, Cundinamarca, Nariño) by the use of ELISA. We also studied the degree of molecular variation by sequence comparison of a segment of the gene encoding for the viral coat protein. In average, PVS was detected in 40% of 320 analyzed samples of potato leaves; the highest levels were observed in the East of Antioquia (49%) and Pasto (Nariño) (47%), while in the other regions ranged between 35% and 42%. Analysis of sequence revealed the presence of two PVS strains in Colombia: three isolates were associated to PVS O (Ordinary) and twelve belonged to PVS A (Andean). A high diversity was observed among PVS A strains with percent identities in the range of 88-99%. These findings highlight the importance of strengthening seed certification programs and quarantine measures in Colombia for viruses like PVS, which can cause losses of up to 20% in potato crops and even higher in mixed virus infection.

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“…Réductions in tuber yields of infected plants of 30%, 37% and 80% hâve been reported (de Bokx and Huttinga 1981;Wright 1970Wright , 1977. PVY and some PVS isolâtes that are aphid transmitted (Kostiw 1979;Wardrop et al 1989), and PVX that is easily mechanically transmitted, often cause rapid reinfection of virus-free potato seed plants in the field (McDonald 1987). Détection of early viral infec-0031-9511 /91 $1.00+.10 tions in seed stocks is important to maintain high standards required by certification agencies.…”

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confidence: 99%

A note on four nonradioactive labeling systems for dot hybridization detection of potato viruses

Audy

Parent²,

Asselin³

2005

phyto

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La société de protection des plantes du Québec, 1991 Ce document est protégé par la loi sur le droit d'auteur. L'utilisation des services d'Érudit (y compris la reproduction) est assujettie à sa politique d'utilisation que vous pouvez consulter en ligne.https://apropos.erudit.org/fr/usagers/politique-dutilisation/ Cet article est diffusé et préservé par Érudit.Érudit est un consortium interuniversitaire sans but lucratif composé de

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Aphid transmission of potato virus S

Cited by 26 publications

References 22 publications

Spatiotemporal Spread of Potato virus S and Potato virus X in Seed Potato in Tasmania, Australia

Spatiotemporal Spread of Potato virus S and Potato virus X in Seed Potato in Tasmania, Australia

Detección serológica y caracterización molecular de <i>Potato virus S</i> (PVS, <i>Carlavirus</i<) en cultivos de papa de Colombia

A note on four nonradioactive labeling systems for dot hybridization detection of potato viruses

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