3 edition of translocation of various isolates of potato virus S in potato plants with primary infection found in the catalog.
translocation of various isolates of potato virus S in potato plants with primary infection
J. A. de Bokx
|Statement||by J. A. de Bokx.|
|Series||Instituut voor Plantenziektenkundig Onderzoek. Mededeling no. 501|
|LC Classifications||SB599.W27 no. 501|
|The Physical Object|
|Number of Pages||1185|
|LC Control Number||70594580|
Summary: Infection of potato plants by viruses causing mosaic symptoms may result in a reduction in crop yield, depending on severity of symptoms and incidence. In , an investigation was undertaken of the relationship between mosaic in plants and the occurrence of growth cracking in tubers. Samples ofCited by: 5. A persistent, aphid vectored virus, PLRV is a member of the genus Polerovirus and infects potato and occasionally other solanaceous plant species such as leafroll virus infected plants may develop rolled, leathery leaves and net necrosis in tubers resulting in significant yield and quality losses. Four PLRV isolates were found in geographically distinct regions that included.
After infection, transgenic potato (cultivars Bintje and Escort) and tobacco plants expressing the virus coat protein gene develop symptoms much more slowly and significantly suppress virus replication (Hemenway et al., ; Hoekema et al., ). Such plants are . In glasshouse experiments, two isolates of Potato virus Y ‘O’ strain (PVY O) 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.
Potato Virus Y (PVY) has re-emerged as a serious disease problem in many seed potato production areas in the United States. In the past, PVY has been managed effectively by potato seed certification programs, but the widespread acceptance of cultivars that are tolerant of infection (plants are diseased, but do not show symptoms) and the emergence of necrotic strains of PVY bring new . Reducing the impact of Potato Virus Y in solanaceous crops. Potato virus Y (PVY) is considered one of the most serious viral diseases that affect solanaceous crops such as potato, tobacco, pepper, and tomato worldwide. The disease has become more prevalent in some regions in recent years.
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The potato cultivars differ in susceptibility to infection (Horne & Wilson, ) and in the efficiency of translocation of the virus in the plant from the infected tuber to its progeny as not all. The translocation of potato virus S, isolate “Eersteling”, in potato plants Het transport van aardappel-S-virus, isolatie “Eersteling”, in aardappelplanten J.
de Bokx 1Cited by: 5. Potato virus Y transmission. PVY may be transmitted to potato plants through grafting, plant sap inoculation and through aphid transmission. The most common manner of PVY infection of plant material in the field is through the aphid, and although aphids on their own can directly damage potato plants, it is their role as viral vectors which has the greatest economic : Potyviridae.
Inoculation of one shoot ofBintje potato plants with potato virus X resulted in a very low rate of tuber-infection of those tubers produced by a second, non-inoculated shoot of the same plant. A similar experiment with potato virus YN resulted in a considerably higher rate of infection of the tubers produced by the non-inoculated shoot than was the case with potato virus by: 2.
Interaction between potato plants and Potato virus Y (PVY), the most devastating potato virus, will be described, starting with the biological variability of PVY, available detection methods. Roguing of infected plants helps prevent the spread of PLRV and early harvest can help prevent late-season infection.
Handling plants will not spread the virus, since PLRV is not mechanically transmissible. POTATO VIRUS S. Virus description and symptoms Potato virus S (PVS) is of increasing importance in potato. It remained unknown until the. Potato (Solanum tuberosum L.) is one of the most important vegetable crops in human nutrition having potential of vital food is the fourth largest food crop cultivated in more than countries throughout the world and has gained a status of globally traded commodity (He et al., ).Potato is infected by at least 40 viruses and 2 viroids (Jeffries et al., ) and mixed viral Cited by: - Tobacco (60 plants per week) and Potato ( pl ants Maris Piper) bait plants (~% inoculum) - Trials run over a 3-year period-Purpose of the trial: Timing of transmission, frequency of transmission, & nature of aphid species - Spatial distribution & frequency transmission at post harvest (virus PH test individual potato plant).
The viruses include potato leafroll virus, potato viruses Y, X, A, S, M, and alfalfa mosaic virus, with the first three being the most important. Major Potato Viruses Potato leafroll virus (PLRV) causes an important disease of potatoes affectine the auantitv and quality of production and may cause a crop to be ineligible for certification.
Potato virus Y (PVY) is the type member of the genus Potyvirus, belonging to the family Potyviridae, and is a major pathogen causing disease in most solanaceous has a wide host range: nine plant families including a number of important crops, such as pepper (Capsicum spp.), potato (Solanum tuberosum L.), tobacco (Nicotiana tabacum L.), tomato (Solanum lycopersicum L.), some Cited by: 9.
The positive-sense RNA genome of Sweet potato feathery mottle virus (SPFMV) (genus Potyvirus, family Potyviridae) contains a large open reading frame (ORF) of 3, codons translatable as a polyprotein and two embedded shorter ORFs in the −1 frame: PISPO, of codons, and PIPO, of 66 codons, located in the P1 and P3 regions, is specific to some sweet potato Cited by: Biological and serological properties of Po-tato virus Y isolates in northeastern United States potato.
Plant Dis. A survey of six potato viruses, Potato virus A (PVA), Potato virus M (PVM), Potato virus S (PVS), Potato virus X (PVX), Potato virus Y (PVY), and Potato leafroll virus (PLRV), was con. Potato acropetal virus Potato leafdrop streak virus Potato virus 20 Solanum virus 2 Tobacco veinal necrosis virus (quoted by de Bokx, ) Brief description PVY is the type species of the Potyvirusgenus, one of the six genera in the family Potyviridae (Shukla et al., ).
PVY virions are filamentous, non-enveloped flexuous rods, nm. PVS ON LATE BLIGHT RESISTANT POTATO GENOTYPES By YU-HSUAN LIN susceptibility to infection by Potato virus S (PVS, family Betaflexiviridae, genus Phylogenetic tree of various Potato virus S (PVS) isolates based on amino acid sequences of.
F1: Symptoms induced by different isolates of Potato virus Y (PVY) on tobacco, potato and Phyalis floridana. Symptoms on tobacco (Nicotiana tabacum cv. 'Samsun') plants 15 days after inoculation. Symptoms on potato (Solanum tuberosum cv. 'Yukon Gold') tubers harvested from plants 90.
Sweet potato viruses in South Africa and the effect of viral infection on storage root yield M J Domola1*, G J Thompson2*, T A S Aveling3, S M Laurie1, H Strydom 1& A A van den Berg 1ARC-Vegetable and Ornamental Plant Institute, Private Bag X, Pretoria, South Africa 2ARC-Institute for Industrial Crops, Private Bag X, Rustenburg, South Africa.
Thomas, P. Sources and dissemination of potato viruses in the Columbia Basin of the Basin and samples were taken at northwestern United States. Plant Disease locations to represent all areas of each field.
The tubers were stored at 4 C until. Surveys of commercial seed potato yields for virus diseases in Manitoba established that potato virus Y is of concern in seed potato production, the samples collected ( to ) contained PVY.
Further analysis of the PVY – positive samples by a duplex RT-PCR indicated that % contained PVYO and % contained PVYN (Singh et al., ). Potato virus Y (PVY) is one of the most important plant viruses affecting potato production. The interactions between potato and PVY are complex and the outcome of the interactions depends on the potato genotype, the PVY strain, and the environmental conditions.
A potato cultivar can induce resistance to a specific PVY strain, yet be susceptible to by: PVY infection by DAS-ELISA. The virus was detected in all regions surveyed, with an average incidence of %. Subsequently, a panel of 82 Tunisian PVY isolates (PVY-TN) was subjected to systematic biological, serological and molecular typing using immunocapture reverse-transcription polymerase chain reaction and a series of PVY OC-Cited by: 2.
Potato virus A (PVA), Potato virus V (PVV), Potato virus X (PVX), Potato leafroll virus (PLRV) and Potato virus S (PVS).
ELISA results showed that 10 samples among the 15 collected samples were found to be infected with PVS. Mechanical inoculation of Chenopodium amaranticolor plants .Six potato viruses are known to occur in seed potato stocks in North America.
They are potato leafroll virus (PLRV) and the potato viruses A (PVA), M (PVM), S (PVS), X (PVX) and Y (PVY) (Shepard and Claflin, ).Alfalfa mosaic virus, which causes the calico disease, sugar beet curly top virus and tobacco rattle virus have been reported but are not considered to be carried in the seed system.BLASTn showed a similarity of the PVY-PS with other Potato virus Y with a highest similarity of 97% (Table ).
Viral sequences also showed similarity with all other Potato virus Y isolates, with a similarity ranging from % to confirm the presence of Potato virus Y isolate. The phylogenetic tree was constructed by using the neighbor.