Cucurbit yellow stunting disorder virus how is cucurbit. Differentiation between cucurbit yellow stunting disorder. Direct evidence for the semipersistent transmission of. First report of cucurbit yellow stunting disorder virus. An analysis of nucleotide sequences in five coding and one noncoding genomic regions of 35 cucurbit yellow stunting disorder virus cysdv isolates collected on a local scale over an 8 year period is. Cucurbit yellow stunting disorder virus cysdv is a relatively new virus. However, in the autumn of 2000 cucumber vein yellowing virus cvyv was. Department of agriculture usda scientists are working to give melon growers some relief from cucurbit yellow stunting disorder virus, or cysdv. How is cucurbit yellow stunting disorder virus abbreviated. The cucurbit yellow stunting disorder virus, cysdv, can infect members of the family cucurbitaceae, including all types of melons, summer and winter squash, pumpkins, gourds, and cucumbers 1. Cucurbit yellow stunting disorder virus cysdv has been present in greenhouse. Cucurbit yellow stunting disorder virus cysdv is an emerging virus causing signi.
Our objectives were to screen melon cucumis melo l. Cucurbit yellow stunting disorder virus cysdv pest. Coinfection with cucumber vein yellowing virus and. Yearround ipm program for cucurbits 911 seedlings cotyledons to 4 leaves vegetative growth. Cucurbit yellow stunting disorder virus cysdv is a species of the crinivirus genus, one of three genera of the closteroviridae family martelli et al. Cucurbit yellow stunting disorder virus cysdv, emerged in the sonoran desert region of the southwestern usa in 2006 and has become well established. Cucurbit yellow stunting disorder virus cases flaring in. Comments on the disease cucurbit yellow stunting disorder is a primarily a disease of cucurbits e. First report of cucurbit yellow stunting disorder virus in.
Cucurbit yellow stunting disorder virus cysdv0overview. Cucurbit yellow stunting disorder virus cysdv and watermelon chlorotic. Cucurbit yellow stunting disorder virus listed as cysdv. Melon resistance to cucurbit yellow stunting disorder virus is characterized by reduced virus accumulation. Cucurbit yellow stunting disorder virus cysdv was identified in the fall of 2006 affecting cucurbit production in the imperial valley of california, the adjacent yuma, az region, as well. Tolerance in cucumber to cucurbit yellow stunting disorder. Data sheet on cucurbit yellow stunting disorder crinivirus. First report of cucurbit yellow stunting disorder virus in cucurbits in georgia, united states. The cysdv symptoms develop first in older leaves and mimic water stress.
Emergence and epidemiology of cucurbit yellow stunting disorder. Cucurbit yellow stunting disorder virus cysdv, emerged in the sonoran desert region of the southwestern usa in 2006 and has become well. Cysdv is defined as cucurbit yellow stunting disorder virus somewhat frequently. Melon leaf symptoms of cucurbit yellow stunting disorder virus manifest as mottling, turning to green spots left and advance to severe interveinal chlorosis right. Squash leaf curl virus, cucurbit leaf crumple virus begomo. Genetic diversity of a natural population of cucurbit. Cucurbit yellow stunting disorder virus cases flaring in south. Cucurbit yellow stunting disorder virus how is cucurbit yellow stunting disorder virus abbreviated. Symptom expression and levels of the ipomovirus cucumber vein yellowing virus cvyv and the crinivirus cucurbit yellow stunting disorder virus cysdv were compared in greenhouse. Ars researchers are working to develop melons with resistance to cucurbit yellow stunting disorder virus. Cucurbit yellow stunting disorder virus cysdv workshop wednesday, april 11 th, 2007 registration 7.
Based on a rtpcr assay, a 19941997 survey of spanish greenhouses showed that the recently described bemisia tabacitransmitted cucurbit yellow stunting disorder virus cysdv has. Three viruses threaten cucurbitsand now green beans. Cucurbit yellow stunting disorder virus cysdv workshop. Emergence and epidemiology of cucurbit yellow stunting. Cucurbit yellow stunting disorder virus cysdv0overview eppo. Kataya ar1, suliman mn, kalantidis k, livieratos ic.
If you desire to recieve a personal copy with price information. Screening for resistance to cucurbit yellow stunting. It was first found in the united states in texas in 1999 and was widespread in the southwestern united. Assessing the movement of cucurbit yellow stunting. Analysis of the temporal and spatial disease progress of.
But transmission of cysdv cucurbit yellow stunting disorder virus by 30 adults of b. The agents of these diseases are partially characterized closteroviruses and are known as beet pseudoyellows virus bpyv, which is transmitted by trialeurodes vaporariorum, and cucurbit yellow stunting. European and mediterranean plant protection organization. Cucurbit yellow stunting disorder virus cysdv was originally reported from the middle east and spain. Cysdv, a whiteflytransmitted virus originally from the middle east, was identified by wintermantel and colleagues in the melonproduction. Pdf molecular characterization of jordanian isolates of. Cucurbit yellow stunting disorder virus cysdv is a relatively new virus affecting cantaloupe production in south texas and worldwide. Characterization of cucurbit yellow stunting disorder virus, a bemisia tabacitransmitted closterovirus. Cysdv stands for cucurbit yellow stunting disorder virus. Cucurbit yellow stunting disorder virus cysdv belongs to the genus crinivirus in the family closteroviridae. Cucurbit yellow stunting disorder virus cysdv and watermelon chlorotic stunt virus wmcsv are the most widespread and damaging viruses to cucurbits in the middle east. Cucurbit yellow stunting disorder virus cysdv is a crinivirus, which primarily affects cucurbits including melons, watermelon, and squash. Host plant resistance of melon to cysdv is a high priority for sustainable. Symptoms of cucurbit yellow stunting disorder virus infection can be confused with abiotic factors, such as nutrient deficiency.
Symptom expression and levels of the ipomovirus cucumber vein yellowing virus cvyv and the crinivirus cucurbit yellow stunting disorder virus cysdv were compared in greenhouse cucumbers in. Cucurbit yellow stunting disorder virus genus crinivirus. Cucurbit yellow stunting disorder virus cysdv vector. First report of cucurbit yellow stunting disorder virus infecting cucurbits in italy a. The oldest leaves develop symptoms first, thus these show the pronounced yellow colouration. Plant disease may 2006 645 tolerance in cucumber to cucurbit yellow stunting disorder virus sahar eid, yusuf aboujawdah, choaa elmohtar, and hana sobh, department of plant sciences, faculty of. Image 5125003 is of cucurbit yellow stunting disorder virus cysdv crinivirus cysdv symptoms on melon. Cucurbit yellow stunting disorder virus watermelon. The disease progresses from initial mottling of leaves, to leaves that are completely yellow, with veins sometimes remaining green.
Cucurbit yellow stunting disorder virus cysdv is a member of the genus crinivirus transmitted by bemisia tabaci gennadius biotypes a, b and q wisler et al. Geographic distribution and phylogenetic analysis of. Ishs international symposium on vegetable production, quality and process standardization in chain. General information about cucurbit yellow stunting disorder virus cysdv0 eppo global database. In 1995, it was detected for the first time in jordan but jordanian isolates have. All other commercially grown cucurbits are susceptible to cmv, although in yellow summer squash varieties that also carry a precocious yellow gene, this gene serves to mask the color breaking. Melon resistance to cucurbit yellow stunting disorder. Cucurbit yellow stunting disorder virus cysdv this virus is transmitted by the white fly. During 20082012 growing seasons a total of 366 cucurbit samples including melon, cucumber, snakemelon. As indicated by its name, the pathogen causes cucurbit yellow stunting disorder which is primarily a disease of cucurbits such as, watermelon, melon and squash. Cucurbit yellow stunting disorder is a primarily a disease of cucurbits e.
Cucurbit yellow stunting disorder virus cysdv reduces melon cucumis melo l. During autumn 1998, chlorotic mottling, yellowing, and stunting symptoms were observed on cucumber cucumis sativus l. Occurrence of cucurbit yellow stunting disorder virus. Pdf cucurbit yellow stunting disorder virus and watermelon.
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