Characterization of cucurbit yellow stunting disorder virus, a bemisia tabacitransmitted closterovirus. Coinfection with cucumber vein yellowing virus and. The disease progresses from initial mottling of leaves, to leaves that are completely yellow, with veins sometimes remaining green. 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. Cucurbit yellow stunting disorder virus how is cucurbit yellow stunting disorder virus abbreviated.
Cucurbit yellow stunting disorder virus cysdv this virus is transmitted by the white fly. Yearround ipm program for cucurbits 911 seedlings cotyledons to 4 leaves vegetative growth. 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. Cysdv stands for cucurbit yellow stunting disorder virus.
Cucurbit yellow stunting disorder virus cases flaring in south. First report of cucurbit yellow stunting disorder virus. Symptoms of cucurbit yellow stunting disorder virus infection can be confused with abiotic factors, such as nutrient deficiency. Department of agriculture usda scientists are working to give melon growers some relief from. First report of cucurbit yellow stunting disorder virus in cucurbits in georgia, united states. Cucurbit yellow stunting disorder virus cysdv workshop wednesday, april 11 th, 2007 registration 7. During autumn 1998, chlorotic mottling, yellowing, and stunting symptoms were observed on cucumber cucumis sativus l. Image 5125003 is of cucurbit yellow stunting disorder virus cysdv crinivirus cysdv symptoms on melon. 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.
This virus causes severe yellowing of the leaves and is moved in symptom less watermelon transplants. Direct evidence for the semipersistent transmission of. Pdf molecular characterization of jordanian isolates of. In 1995, it was detected for the first time in jordan but jordanian isolates have.
Data sheet on cucurbit yellow stunting disorder crinivirus. Cucurbit yellow stunting disorder virus listed as cysdv. Pdf cucurbit yellow stunting disorder virus and watermelon. The oldest leaves develop symptoms first, thus these show the pronounced yellow colouration. Department of agriculture usda scientists are working to give melon growers some relief from cucurbit yellow stunting disorder virus, or cysdv. Host plant resistance of melon to cysdv is a high priority for sustainable.
Cucurbit yellow stunting disorder virus cysdv is a relatively new virus affecting cantaloupe production in south texas and worldwide. Melon resistance to cucurbit yellow stunting disorder virus is characterized by reduced virus accumulation. The cysdv symptoms develop first in older leaves and mimic water stress. 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. Combating cucurbit yellow stunting disorder virus by sharon durham march 9, 2011.
Cucurbit yellow stunting disorder virus cases flaring in. Cysdv is defined as cucurbit yellow stunting disorder virus somewhat frequently. Kataya ar1, suliman mn, kalantidis k, livieratos ic. Cucurbit yellow stunting disorder is a primarily a disease of cucurbits e. Curtovirusbecurtovirus group test beet curly top virus curto. 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. 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 cysdv is a destructive virus of cucurbits in iran. Cucurbit yellow stunting disorder virus cysdv0overview eppo. Melon leaf symptoms of cucurbit yellow stunting disorder virus manifest as mottling, turning to green spots left and advance to severe interveinal chlorosis right. Cucurbit yellow stunting disorder virus genus crinivirus. Cucurbit yellow stunting disorder virus cysdv is an emerging virus causing signi. Cucurbit yellow stunting disorder virus cysdv, emerged in the sonoran desert region of the southwestern usa in 2006 and has become well. Cucurbit yellow stunting disorder virus cysdv causes high yield losses to cucurbits in many parts of the world.
However, in the autumn of 2000 cucumber vein yellowing virus cvyv was. It was first found in the united states in texas in 1999 and was widespread in the southwestern united. How is cucurbit yellow stunting disorder virus abbreviated. Ars researchers are working to develop melons with resistance to cucurbit yellow stunting disorder virus.
Comments on the disease cucurbit yellow stunting disorder is a primarily a disease of cucurbits e. Differentiation between cucurbit yellow stunting disorder. Genetic diversity of a natural population of cucurbit. Cucurbit yellow stunting disorder virus cysdv reduces melon cucumis melo l. Cucurbit yellow stunting disorder virus cysdv microbewiki.
Cucurbit yellow stunting disorder virus watermelon. Emergence and epidemiology of cucurbit yellow stunting. 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. Tolerance in cucumber to cucurbit yellow stunting disorder. 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. Cucurbit yellow stunting disorder virus cysdv has been present in greenhouse. 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. Melon resistance to cucurbit yellow stunting disorder. 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. Cucurbit yellow stunting disorder virus cysdv workshop. 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.
During 20082012 growing seasons a total of 366 cucurbit samples including melon, cucumber, snakemelon. Assessing the movement of cucurbit yellow stunting. Cucurbit yellow stunting disorder virus cysdv is a relatively new virus. Geographic distribution and phylogenetic analysis of. First report of cucurbit yellow stunting disorder virus in. Screening for resistance to cucurbit yellow stunting. Squash leaf curl virus, cucurbit leaf crumple virus begomo.
The cucurbit yellow stunting disorder virus, cysdv, can infect members of the family cucurbitaceae, including all types of melons, summer. Ishs international symposium on vegetable production, quality and process standardization in chain. Analysis of the temporal and spatial disease progress of. General information about cucurbit yellow stunting disorder virus cysdv0 eppo global database. Cysdv, a whiteflytransmitted virus originally from the middle east, was identified by wintermantel and colleagues in the melonproduction.
Cucurbit yellow stunting disorder virus how is cucurbit. 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 p25 is a suppressor of posttranscriptional gene silencing. Cucurbit yellow stunting disorder virus cysdv pest. Cucurbit yellow stunting disorder virus cysdv is a crinivirus, which primarily affects cucurbits including melons, watermelon, and squash. Cucurbit yellow stunting disorder virus cysdv0overview. But transmission of cysdv cucurbit yellow stunting disorder virus by 30 adults of b. Cucurbit yellow stunting disorder virus cysdv belongs to the genus crinivirus in the family closteroviridae. Cucurbit yellow stunting disorder virus cysdv vector. Occurrence of cucurbit yellow stunting disorder virus. Three viruses threaten cucurbitsand now green beans. If you desire to recieve a personal copy with price information. Our objectives were to screen melon cucumis melo l.
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