scholarly journals First Report of Zucchini yellow mosaic virus in Cucumber in Poland

Plant Disease ◽  
2003 ◽  
Vol 87 (11) ◽  
pp. 1399-1399 ◽  
Author(s):  
H. Pospieszny ◽  
M. Cajza ◽  
R. Plewa
Keyword(s):  
Mosaic Virus ◽  
Cucurbita Pepo ◽  
Dna Analysis ◽  
Citrullus Lanatus ◽  
Zucchini Yellow Mosaic Virus ◽  
Chenopodium Quinoa ◽  
Yellow Mosaic Virus ◽  
Chenopodium Amaranticolor ◽  
Cycle Sequencing ◽  
First Report

In June 2002, mosaic and interveinal chlorosis were observed on two cucumber plants (Cucumis sativus) grown in one commercial greenhouse in the western region of Poland. Electron microscopic examination of leaf-dip preparations from infected plants showed flexuous filamentous virus particles typical of potyviruses (720 to 750 nm long). Chenopodium amaranticolor, Chenopodium quinoa, Citrullus lanatus, C. melo, C. sativus, Cucurbita maxima, Cucurbita pepo, Cucurbita pepo cv. Giromontiina, Cucurbita pepo cv. Patissoniana, Nicotiana benthamiana, and N. tabacum were mechanically inoculated with sap from symptomatic cucumber leaves. The virus caused local chlorotic lesions on Chenopodium amaranticolor and Chenopodium quinoa and systemic infection in all tested cucurbits but it did not infect tobacco plants. Reverse transcription-polymerase chain reaction (RT-PCR) amplification of the 3′ end of the genomic RNA was done by using P9502 as a downstream primer and degenerate CPUP as an upstream primer to amplify a highly conserved region of the potyviral coat protein (1). The PCR products were directly sequenced with the CEQ DTCS dye terminator cycle sequencing kit (Beckman Coulter, Inc., Fullerton, CA), and the analysis of dideoxy terminated fragments was conducted by capillary electrophoresis using a CEQ 2000 DNA Analysis System (Beckman Coulter, Inc.). The obtained 684 nt sequence (GenBank Accession No. AY347476) was almost identical with sequences of Zucchini yellow mosaic virus (ZYMV) isolates from Austria (GenBank Accession Nos. AJ420012-AJ420019 and AJ420027) and Hungary (GenBank Accession Nos. AJ459954 and AJ459955). The above suggested that the Polish isolate of ZYMV belonged to the Central European branch of the phylogenetic tree (2). To our knowledge, this is the first report of ZYMV in Poland. References: (1) R. A. A. van der Vlugt et al. Phytopathology 89:148, 1999. (2) I. Tobias and L. Palkovics. Pest Manage. Sci. 59:493, 2003.

scholarly journals First Report of Zucchini yellow mosaic virus in Cucumber (Cucumis sativus) in India

Plant Disease ◽  
2004 ◽  
Vol 88 (8) ◽  
pp. 906-906 ◽  
Author(s):  
Raj Verma ◽  
Satya Prakash ◽  
S. P. S. Tomer
Keyword(s):  
Mosaic Virus ◽  
Cucumis Sativus ◽  
Cucurbita Pepo ◽  
Citrullus Lanatus ◽  
Natural Infection ◽  
Zucchini Yellow Mosaic Virus ◽  
Yellow Mosaic Virus ◽  
Watermelon Mosaic Virus ◽  
Cucumis Sativus L ◽  
First Report

In August of 2002, cucumber (Cucumis sativus L. cv. Himangi) plants grown in commercial fields in Pune, western Maharashtra, India, exhibited chlorotic spots, veinal chlorosis, mosaic, blister formation and shoestring symptoms on leaves, stunted growth, and distortion of fruits. Incidence of virus infection in the fields varied from 25 to 38%. Crude sap extracted from infected cucumber leaf samples was inoculated mechanically onto cucumber and indicator host plants. The inoculated glasshouse-grown cucumber plants showed virus symptoms similar to those observed in the field. The virus produced chlorotic local lesions on Chenopodium amaranticolor and chlorotic spots followed by veinal chlorosis, mosaic, vein banding, and leaf distortion on Citrullus lanatus, C. melo, C. sativus, Cucurbita maxima, Cucurbita pepo, Luffa acutangula, and Trichosanthes anguina. The virus did not infect Nicotiana benthamiana, N. glutinosa, and N. tabacum cv. White Burley (1,2). Cucumber and indicator plants were tested using direct antigen coating enzyme-linked immunosorbent assays. A positive reaction was obtained with monoclonal antiserum to Zucchini yellow mosaic virus (ZYMV) but not with antisera to Papaya ringspot virus-P, Cucumber mosaic virus, and Watermelon mosaic virus (Agdia, Inc., Elkhart, IN). The disease was observed again in the field during July to September 2003. Natural infection of zucchini (Cucurbita pepo) by ZYMV has been reported previously from India (3). To our knowledge, this is the first report of ZYMV in cucumber in India. References: (1) H. Pospieszny et al. Plant Dis. 87:1399, 2003. (2) R. Provvidenti et al. Plant Dis. 68:443, 1984. (3) S. J. Singh et al. Indian Phytopathol. 56:174, 2003.

scholarly journals First Report of Zucchini yellow mosaic virus in Argentina

Plant Disease ◽  
2000 ◽  
Vol 84 (3) ◽  
pp. 371-371 ◽  
Author(s):  
O. Gracia
Keyword(s):  
Host Range ◽  
Mosaic Virus ◽  
Disease Incidence ◽  
Sodium Dodecyl ◽  
Zucchini Yellow Mosaic Virus ◽  
Chenopodium Quinoa ◽  
Yellow Mosaic Virus ◽  
Watermelon Mosaic Virus ◽  
Mechanical Transmission ◽  
Chenopodium Amaranticolor

In August 1996, a severe viral disease occurred in squash produced in the subtropical Province of Salta, Argentina. Plants of Cucurbita pepo L. (zucchini) and Cucurbita maxima L. ‘Any’ were affected. Approximately 50% of the plants showed prominent yellow mosaic, necrosis, and foliar distortion. Most of the fruits on infected plants were small, with scattered glossy yellow knobs over a green background, and some showed additional fruit malformation. A potyvirus was isolated from infected plants by mechanical transmission. Filamentous particles were associated with symptomatic inoculated squash and cucumber plants in leaf-dip preparations with an electron microscope (Elmisckop I, Siemens, Germany). The particles were flexuous rods ≈755 nm long. The host range of the isolated virus was mostly limited to the cucurbits (systemic infection) but also included Gomphrena globosa (local and systemic symptoms) and Chenopodium quinoa and Chenopodium amaranticolor, which showed only local chlorotic lesions. Twenty species in the Compositae, Leguminosae, and Solanaceae were not infected (2). In agar double-diffusion tests with sodium dodecyl sulfate (SDS)-degraded virus particles, no reactions were observed with Papaya ringspot virus, Watermelon mosaic virus (WMV), and WMV-Mo antisera, but a strong precipitin line was obtained with the antiserum prepared by Purcifull (1) for isolate 1119 of Zucchini yellow mosaic virus (ZYMV). Isolate 1119 and our isolate appeared serologically indistinguishable in SDS immunodiffusion tests. Both gave fused precipitin bands without spur formation. The results (field symptoms, transmissibility, host range, particle morphology, and serology) lead to the conclusion that ZYMV is present in Argentina. Since 1996, outbreaks have occurred every year in Salta, devastating squash crops. In 1998, ZYMV also was found in the provinces of Mendoza and San Juan, infecting zucchini squash and melons (Cucumis melo L.). A survey of crops indicates that disease incidence and severity were lower than in Salta. References: (1) D. E. Purcifull et al. Plant Dis. 68:230, 1984. (2) H. L. Wang. Plant Dis. 76:530, 1992.

scholarly journals Evaluation of Selected Cucurbitaceous Vegetables for Resistance to Zucchini yellow mosaic virus

Plant Disease ◽  
2013 ◽  
Vol 97 (10) ◽  
pp. 1316-1321 ◽  
Author(s):  
J. Svoboda ◽  
L. Leisova-Svobodova ◽  
M. Amano
Keyword(s):  
Mosaic Virus ◽  
Cucurbita Pepo ◽  
Citrullus Lanatus ◽  
Zucchini Yellow Mosaic Virus ◽  
Yellow Mosaic Virus ◽  
Virus Protein ◽  
Virus Concentration ◽  
Summer Squash ◽  
Polymerase Chain ◽  
Relative Virus

Zucchini yellow mosaic virus (ZYMV) causes considerable losses of cucurbitaceous vegetables grown nearly all over the world; indeed, the commonly planted cultivars are highly susceptible to ZYMV. In all, 3 cultivars of American and 8 of European summer squash (Cucurbita pepo), and 6 Japanese and 21 European cucumber lines (Cucumis sativus), including both slicing and pickling species, were selected for the evaluation of their resistance to the most virulent Czech strain, ZYMV-H (GenBank accession number DQ144054). Butternut squash (Cucurbita moschata) ‘Menina 15’, Chinese slicing cucumber ‘Taichung Mou Gua-1’ (TMG-1), and watermelon (Citrullus lanatus) accession PI 595203 were included in the experiment, because they were reported to be resistant to ZYMV. The tested plants were mechanically inoculated by ZYMV-H and their resistance was assessed through a comparison of the relative virus protein concentrations and visual symptoms. Butternut squash Menina 15, Chinese slicing cucumber TMG-1, Japanese slicing cucumber breeds ‘G22' and ‘A192-18’, and watermelon PI 595203 were evaluated as immune: the virus concentration in their leaves was zero, as verified by polymerase chain reaction. American summer squash ‘Cougar’ and Japanese slicing cucumber breeds ‘A202-18’, ‘R10’, and ‘S93-18’ were clearly resistant, because the virus multiplied at a low rate in these plants. The remaining tested cultivars were tolerant or susceptible to ZYMV.

scholarly journals First Report of Zucchini yellow mosaic virus Associated with Leaf Crinkle and Yellow Mosaic Diseases of Cucurbit Plants in Mali

Plant Disease ◽  
2010 ◽  
Vol 94 (7) ◽  
pp. 923-923 ◽  
Author(s):  
W. S. Tsai ◽  
I. K. Abdourhamane ◽  
D. Knierim ◽  
J. T. Wang ◽  
L. Kenyon
Keyword(s):  
Coat Protein ◽  
Mosaic Virus ◽  
Citrullus Lanatus ◽  
Zucchini Yellow Mosaic Virus ◽  
The United States ◽  
Yellow Mosaic Virus ◽  
Nucleotide Identity ◽  
Watermelon Mosaic Virus ◽  
Virus Species ◽  
First Report

The aphid-transmitted Zucchini yellow mosaic virus (ZYMV; genus Potyvirus, family Potyviridae) has been reported to cause severe epidemics and yield losses in cucurbit crops worldwide (1). In Africa, ZYMV has been detected in Algeria, Egypt, Madagascar, Mauritius, Mayotte, Morocco, Nigeria, Reunion, South Africa, Sudan, Swaziland, and Tunisia (1). In April 2009, leaf yellowing, mosaic, crinkling, and curling were common on cucurbit plants in fields in Mali. Symptomatic leaf samples were collected from five cucumber (Cucumis sativus) plants in Kati, two watermelon (Citrullus lanatus) plants in Samanko, and one weedy melon (Cucumis sp.) plant in Baguineda. All samples tested positive for ZYMV and were negative for Cucumber mosaic virus (CMV), Cucumber green mottle mosaic virus (CGMMV), Papaya ringspot virus type W (PRSV-W), Watermelon mosaic virus (WMV), and Watermelon silver mottle virus (WSMoV) by double-antibody sandwich (DAS)-ELISA. They also tested negative for Melon yellow spot virus (MYSV) by indirect ELISA. Antibodies against ZYMV and WMV were obtained from DSMZ, Braunschweig, Germany, and those against CGMMV, MYSV, PRSV-W, and WSMoV were provided by Shyi-Dong Yeh, National Chung Hsing University, Taichung, Taiwan. Six ZYMV ELISA-positive samples (three cucumber, two watermelon, and the weedy melon sample) were also tested by reverse transcription (RT)-PCR using the potyvirus universal primer pair Sprimer1/Oligo(dT) (2). The expected 1.6-kb viral cDNA was amplified from all six samples and each was sequenced. All sequences obtained from cucumber (GenBank Accession Nos. HM005307, HM005308, and HM005309), watermelon (GenBank Accession Nos. HM005311 and HM005312), and weedy melon (GenBank Accession No. HM005310) isolates were 1,684 nucleotides (nt) long excluding the 3′ poly-A tails. They comprised the 3′-terminal of the NIb region (1 to 633 nt), the coat protein region (634 to 1473 nt), and the 3′-untranslated region (1,474 to 1,684 nt). Because the sequences shared high nucleotide identity (98.3 to 99.7%), these isolates were considered to be the same virus species. When the sequences were compared by BLASTn searching in GenBank and analyzed by DNAMAN Sequence Analysis Software (Lynnon Corporation, St-Louis, Pointe-Claire, Quebec, Canada), they were found to have the greatest nucleotide identity (97.4 to 98.0%) with the Connecticut strain of ZYMV (ZYMV-Connecticut; GenBank Accession No. D00692), within a clade of isolates from China, Italy, Japan, and the United States. When assessed separately, their coat protein (97.7 to 98.3% nucleotide and 98.9 to 99.6% amino acid identity) and 3′-untranslated regions (96.7 to 97.2% identity) also had greatest homology with ZYMV-Connecticut. To our knowledge, this is the first report of ZYMV infecting cucurbit plants in Mali. ZYMV should be taken into consideration when breeding cucurbit crops for this region, and managing viral diseases. References: (1) C. Desbiez et al. Plant Pathol. 46:809, 1997. (2) W. S. Tsai et al. Plant Dis. 94:378, 2010.

scholarly journals First Report of Bidens mottle virus Causing Mosaic and Leaf Deformation in Garland Chrysanthemum and Lettuce in Taiwan

Plant Disease ◽  
2012 ◽  
Vol 96 (3) ◽  
pp. 464-464 ◽  
Author(s):  
Y. K. Chen ◽  
J. Y. Lee
Keyword(s):  
Mosaic Virus ◽  
Zucchini Yellow Mosaic Virus ◽  
Chenopodium Quinoa ◽  
The United States ◽  
Mottle Virus ◽  
Yellow Mosaic Virus ◽  
Degenerate Primers ◽  
First Report ◽  
Cdna Sequences ◽  
Original Host

Garland chrysanthemum (Chrysanthemum coronarium) and lettuce (Lactuca sativa) are winter vegetables in Taiwan. Turnip mosaic virus (TuMV) and Lettuce mosaic virus (LMV) were potyviruses commonly isolated from garland chrysanthemum and lettuce, respectively (1). Symptoms of mosaic and deformation in leaves and stunting of plants have been observed in both Compositae crops in the fields since 2007 in the Chiayi area and with an increasing incidence in recent years (26 and 33% in garland chrysanthemum and lettuce, respectively). Filamentous virus particles (approximately 780 × 13 nm) in the crude sap and pinwheel inclusions in infected cells can be observed in the preparations of both diseased hosts with electron microscopy. However, TuMV, LMV, and other potyviruses (Bean yellow mosaic virus, Papaya ringspot virus, and Zucchini yellow mosaic virus) were not detectable in diseased samples by ELISA and western blotting tests, indicating a new potyvirus infection. Virus cultures were isolated from infected garland chrysanthemum and lettuce separately via mechanical inoculations in Chenopodium quinoa. Each isolate was mechanically inoculated to their original host individually and all caused symptoms similar to that observed in the field, indicating their pathogenicity to their original host. A cDNA fragment consisting of partial nuclear inclusion (NIb) and coat protein (CP) genes were amplified with potyvirus degenerate primers (forward: 5′-GGBAAYAATAGTGGNCAACC and reverse: 5′-GGGGAGGTGCCGTTCTCDATRCACCA) and was found to share 90% nucleotide sequence identity to that of Bidens mottle virus (BiMoV; GenBank Accession No. AF538686). The sequences of the CP gene and 3′ untranslated region (3′-UTR) of tested viruses were further amplified with a specific primer of BiMoV CP and oligo-dT in reverse transcription-PCR. The amplified fragments were cloned, sequenced, and the combined cDNA sequences were deposited in GenBank (Accession No. AB491763 for isolate garland chrysanthemum and Accession No. AB491764 for isolate lettuce). Sequence analysis showed that both cloned sequences shared more than 97% nucleotide similarity to that of BiMoV. The amino acid sequence of the CP of both isolates shared a 99.3% identity and a 98.9 to 99.3% identity to that of other BiMoV isolates deposited in GenBank. BiMoV was first described to be infecting lettuce and Cichorium endivia in the United States (4) and was first reported in sunflower and calendula in Taiwan recently (2,3). To our knowledge, this is the first report of the occurrence of BiMoV in garland chrysanthemum and lettuce in Taiwan. References: (1) Y. K. Chen et al. Plant Pathol. Bull. 5:55,1996. (2) C.-H. Huang and F.-J. Jan. Plant Dis. 95:362, 2011. (3) J. Y. Liao et al. Arch. Virol. 154:723, 2009. (4) F. Youssef et al. Arch. Virol 153:227, 2008.

scholarly journals Partial Characterization of a Distinct Potyvirus Isolated from Watermelon in Florida

Plant Disease ◽  
1998 ◽  
Vol 82 (12) ◽  
pp. 1386-1390 ◽  
Author(s):  
D. E. Purcifull ◽  
E. Hiebert ◽  
M. A. Petersen ◽  
G. W. Simone ◽  
T. A. Kucharek ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Mosaic Virus ◽  
Cucurbita Pepo ◽  
Citrullus Lanatus ◽  
Light And Electron Microscopy ◽  
Zucchini Yellow Mosaic Virus ◽  
South Florida ◽  
Yellow Mosaic Virus ◽  
Nuclear Inclusions ◽  
Field Samples

Conspicuous, unusual nuclear inclusions in stained epidermal strips of leaves implicated a virus (designated isolate 2932) as the cause of foliar mosaic in a watermelon plant (Citrullus lanatus) received for analysis from South Florida in 1990. In greenhouse tests, mechanically inoculated plants of Cucurbita pepo (Small Sugar pumpkin and Early Prolific Straightneck squash) and watermelon (Crimson Sweet) developed mosaic or mottle symptoms. Isolate 2932 caused foliar symptoms in 16 cultivars of Cucurbita pepo, including Freedom II and Prelude II, and in six cultivars of watermelon. None of five cultivars of melon (Cucumis melo) or 11 cultivars of cucumber (Cucumis sativus) developed consistent, distinctive symptoms, but all of these cultivars were systemically infected based on back-inoculations to squash. No systemic infection of mechanically inoculated plants of 25 species representing 13 noncucurbitaceous plant families was detected. Crystalline nuclear inclusions, cytoplasmic amorphous inclusions, and cytoplasmic cylindrical inclusions were detected by light and electron microscopy in leaf tissues of infected squash and watermelon. Electron microscopy of squash leaf extracts revealed filamentous particles, and 86% of 159 particles measured ranged from 800 to 890 nm in length. The virus was transmitted in a nonpersistent manner by Myzus persicae from squash to squash in two of three trials. Immunodiffusion tests with polyclonal antisera prepared to partially purified 2932 or its capsid protein showed that the isolate was antigenically different from papaya ringspot virus type W, watermelon mosaic virus 2, and zucchini yellow mosaic virus. In limited testing of field samples of squash and watermelon since 1990, no additional isolates of the 2932 type have been found. The characteristics of isolate 2932 obtained thus far indicate that it is a distinct potyvirus. It is tentatively named watermelon leaf mottle virus to distinguish it from other potyviruses commonly isolated from cucurbits in Florida.

scholarly journals Efeitos da interação de potyvirus em híbridos de meloeiro, variedades de melancia e abobrinha

2003 ◽  
Vol 28 (2) ◽  
pp. 199-204 ◽  
Author(s):  
Najara F. Ramos ◽  
J. Albérsio A. Lima ◽  
M. Fátima B. Gonçalves
Keyword(s):  
Mosaic Virus ◽  
Cucumis Melo ◽  
Cucurbita Pepo ◽  
Citrullus Lanatus ◽  
Zucchini Yellow Mosaic Virus ◽  
Ringspot Virus ◽  
Yellow Mosaic Virus ◽  
Watermelon Mosaic Virus ◽  
Gold Mine ◽  
Papaya Ringspot Virus

Em razão da freqüente ocorrência de infecção mista, na natureza, o presente trabalho objetivou estudar o efeito da interação de diferentes espécies de potyvírus em meloeiro (Cucumis melo), melancia (Citrullus lanatus) e abobrinha (Cucurbita pepo). Foram usados os seguintes vírus da família Potyviridae, gênero Potyvirus: Papaya ringspot virus (PRSV); Watermelon mosaic virus, (WMV) e Zucchini yellow mosaic virus, (ZYMV). Os efeitos na sintomatologia das infecções duplas e simples de PRSV, WMV e ZYMV foram avaliados em três híbridos de meloeiro, duas variedades de melancia e abobrinha 'Caserta', em experimentos de casa de vegetação. Os três vírus, isoladamente ou em todas as duplas combinações possíveis, foram inoculados, em plantas dos híbridos de meloeiro Hy Mark, Gold Mine e Orange Flesh, variedades de melancia Crimson Sweet e Charleston Gray e abobrinha 'Caserta', usando-se dez plantas de cada híbrido ou variedade, por combinação de vírus. As inoculações foram efetuadas por meio de extratos de folhas com infecção simples dos respectivos vírus. As plantas inoculadas com cada vírus isoladamente e suas respectivas combinações foram observadas quanto ao aparecimento de sintomas durante 30 dias após as inoculações. Amostras foliares das plantas inoculadas foram, também, testadas por ELISA indireto contra os anti-soros correspondentes para cada vírus. As infecções duplas em meloeiro, melancia e abobrinha revelaram, através da avaliação sintomatológica, que existem interações sinérgicas entre PRSV, WMV e ZYMV. As infecções duplas envolvendo o ZYMV apresentaram alta severidade, exibindo sintomas não encontrados em infecções simples, apesar da severidade nas infecções isoladas do ZYMV.

scholarly journals First Report of Zucchini yellow mosaic virus in Bottlegourd (Lagenaria siceraria) in India

Plant Disease ◽  
2004 ◽  
Vol 88 (4) ◽  
pp. 426-426 ◽  
Author(s):  
Raj Verma ◽  
Y. S. Ahlawat ◽  
S. P. S. Tomer ◽  
Satya Prakash ◽  
R. P. Pant
Keyword(s):  
Mosaic Virus ◽  
Citrullus Lanatus ◽  
Natural Infection ◽  
Zucchini Yellow Mosaic Virus ◽  
Yellow Mosaic Virus ◽  
Enzyme Linked Immunosorbent Assay ◽  
Watermelon Mosaic Virus ◽  
Lagenaria Siceraria ◽  
First Report ◽  
Benincasa Hispida

In December 2002, bottlegourd (Lagenaria siceraria L.) plants grown as a commercial crop in Pune, India (western Maharashtra) showed severe mosaic, interveinal chlorosis, and leaf deformation that resulted in fern-leaf appearance and severe fruit distortion in approximately 70% of the plants. Crude sap of collected samples was used to mechanically inoculate uninfected glasshouse-grown bottlegourd plants that reproduced symptoms observed in the field. Sap extracts from these glasshouse infected bottlegourd plants were used to mechanically inoculate selected indicator hosts. Chlorotic local lesions were produced on Chenopodium amaranticolor, and systemic symptoms were produced on Benincasa hispida, Citrullus lanatus, Cucumis sativus, Cucurbita moschata, C. pepo, Luffa cylindrical, and Trichosanthes anguina. The virus was specifically identified with serological testing using direct antigen coating enzyme-linked immunosorbent assay. The virus reacted strongly to Zucchini yellow mosaic virus (ZYMV) antiserum and did not react to Papaya ring spot virus-P (PRSV-P), Cucumber mosaic virus (CMV), and Watermelon mosaic virus (WMV) antisera. Electron microscopic examination of leaf-dip preparation from infected plants showed flexuous filamentous particles (720 to 760 nm long) that are typical of potyviruses. Natural infection of bottlegourd by ZYMV has been reported in the Hawaiian Islands (1). To our knowledge, this is the first report of this potentially destructive virus in bottlegourd in India. Reference: (1) D. E. Ullman et al. Plant Dis. 75:367, 1991.

scholarly journals EVALUATION OF WATERMELON AND RELATED GERMPLASM FOR RESISTANCE TO ZUCCHINI YELLOW MOSAIC VIRUS

HortScience ◽  
1992 ◽  
Vol 27 (11) ◽  
pp. 1173a-1173 ◽  
Author(s):  
George Boyhan ◽  
Joseph D. Norton ◽  
Barry J. Jacobsen ◽  
Bruce R. Abrahams
Keyword(s):  
Mosaic Virus ◽  
Citrullus Lanatus ◽  
Zucchini Yellow Mosaic Virus ◽  
Yellow Mosaic Virus ◽  
Citrullus Colocynthis ◽  
Breeding Lines ◽  
First Report ◽  
Plant Introductions ◽  
Commercial Cultivars

Of 153 plant introductions (PI), breeding lines, and commercial cultivars tested by mechanical inoculations in the greenhouse, only PI 482261-1, `Egun', PI 494528, PI 386026, and PI 386025 showed any resistance to the Florida strain of zucchini yellow mosaic virus. PI 482261-1 and `Egun' are Citrullus lanatus, the others are citron types, Citrullus colocynthis. This is the first report of resistance in PI 386026, PI 386025, and the cultivar `Egun'.

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