Resistance in vegetable marrow and other Cucurbita spp. to two British strains of cucumber mosaic virus

1984 ◽  
Vol 102 (1) ◽  
pp. 197-205 ◽  
Author(s):  
D. G. A. Walkey ◽  
D. A. C. Pink
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Virus Resistance ◽  
Cucurbita Pepo ◽  
Commercial Cultivars ◽  
Vegetable Marrow ◽  
Leaf Symptoms ◽  
Severe Leaf

SummaryMost commercial cultivars of Cucurbita pepo L. reacted by producing severe leaf symptoms when infected with either of two British strains of cucumber mosaic virus. Resistance was identified in some pumpkin-types of C. pepo, with the highest level in cv. Cinderella. Studies with selfed populations produced from selected resistant plants demonstrated that resistance in cv. Cinderella is heritable.

scholarly journals Yield of varieties of Cucurbita pepo preimmunized with mild strains of Papaya ringspot virus - type W and Zucchini yellow mosaic virus

2009 ◽  
Vol 66 (3) ◽  
pp. 419-424 ◽  
Author(s):  
Estela Bonilha ◽  
Ricardo Gioria ◽  
Rômulo Fujito Kobori ◽  
Paulo Tarcísio Della Vecchia ◽  
Sônia Maria de Stefano Piedade ◽  
...  
Keyword(s):  
Mosaic Virus ◽  
Virus Type ◽  
Cucurbita Pepo ◽  
Zucchini Yellow Mosaic Virus ◽  
Fruit Weight ◽  
Ringspot Virus ◽  
Yellow Mosaic Virus ◽  
Papaya Ringspot Virus ◽  
Leaf Symptoms ◽  
Severe Leaf

Papaya ringspot virus - type W (PRSV-W) and Zucchini yellow mosaic virus (ZYMV) are the most prevalent viruses in cucurbit crops in Brazil and responsible for frequent yield losses. Diseases caused by these viruses are difficult to control. The objective of this work was to evaluate the effects of mild strains PRSV-W-1 and ZYMV-M on the yield of Cucurbita pepo L. cvs. Samira, Novita Plus, AF 2847, and Yasmin, under plastic greenhouse and field conditions. Plants infected with ZYMV-M and grown in a plastic greenhouse did not exhibit typical leaf symptoms or significant alterations in quantitative and qualitative fruit yield. However, when infected with PRSV-W-1, or PRSV-W-1 + ZYMV-M, the plants exhibited severe leaf mosaic symptoms and reduced fruit quality, although there were no changes in the number and mean fruit weight harvested from these plants. When these plants were infected with PRSV-W-1 and studied simultaneously in the field and plastic greenhouse, intensification of symptoms in the fruits and leaves was more pronounced under the greenhouse conditions. Quantitative yield did not change. Environmental factors seem to influence symptoms induced by PRSV-W-1.

scholarly journals Characterization of two Cucumber mosaic virus isolates infecting Allium cepa in Turkey

2021 ◽  
Vol 60 (1) ◽  
pp. 13-21
Author(s):  
Adyatma I. SANTOSA ◽  
Filiz ERTUNC
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Allium Cepa ◽  
Cucumis Sativus L ◽  
Mediterranean Countries ◽  
Allium Cepa L ◽  
A Minor ◽  
Cucumis Melo L ◽  
Severe Leaf

Cucumber mosaic virus (CMV) is polyphagous, infecting plants in several families. CMV has occurred as a minor pathogen in Allium crops in several Mediterranean countries, but little was known of the virus naturally infecting Allium spp. This study completed molecular and biological characterization of CMV-14.3Po and CMV-15.5Po, two newly identified CMV isolates infecting onion (Allium cepa L.) in Turkey. Phylogenetic, and nucleotide and amino acid sequence identity analyses of partial RNA2 and RNA3 of the two isolates showed that they were very similar to other CMV isolates from Mediterranean, European, and East Asian countries. Phylogenetic analysis of the partial sequence of RNA3 also showed that the onion isolates belong to subgroup IA. Onion isolates were mechanically transmissible, and caused mild leaf malformation on onion, severe leaf malformation and stunting on garlic (Allium sativus L.), and mosaic and mottle on cucumber (Cucumis sativus L.) and melon (Cucumis melo L.).

scholarly journals Reactions of commercial cultivars of okra, pepper, and tomato to cucumber mosaic virus disease

Agro-Science ◽  
2018 ◽  
Vol 17 (2) ◽  
pp. 27
Author(s):  
M.T. Salaudeen ◽  
O Oluwatosin ◽  
A.S. Gana
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Virus Disease ◽  
Commercial Cultivars

scholarly journals The Suppressor of Transgene RNA Silencing Encoded by Cucumber mosaic virus Interferes with Salicylic Acid-Mediated Virus Resistance

2001 ◽  
Vol 14 (6) ◽  
pp. 715-724 ◽  
Author(s):  
Liang-Hui Ji ◽  
Shou-Wei Ding
Keyword(s):  
Salicylic Acid ◽  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Virus Resistance ◽  
Rna Silencing ◽  
Defense Mechanism ◽  
Antiviral Defense ◽  
Oxidase Gene ◽  
Systemic Spread ◽  
Systemic Infections

The Cucumber mosaic virus (CMV)-encoded 2b protein (Cmv2b) is a nuclear protein that suppresses transgene RNA silencing in Nicotiana benthamiana. Cmv2b is an important virulence determinant but nonessential for systemic spread in N. glutinosa, in contrast to its indispensable role for systemic infections in cucumber. Here, we report that Cmv2b became essential for systemic infections in older N. glutinosa plants or in young seedlings pre-treated with salicylic acid (SA). Expression of Cmv2b from the genome of either CMV or Tobacco mosaic virus significantly reduced the inhibitory effect of SA on virus accumulation in inoculated leaves and systemic leaves. A close correlation is demonstrated between Cmv2b expression and a reduced SA-dependent induction of the alternative oxidase gene, a component of the recently proposed SA-regulated antiviral defense. These results collectively reveal a novel activity of Cmv2b in the inhibition of SA-mediated virus resistance. We used a N. tabacum line expressing a bacterial nahG transgene that degrades SA to provide evidence for a Cmv2b-sensitive antiviral defense mechanism in tobacco in which SA acts as a positive modifier but not as an essential component. We propose that SA induces virus resistance by potentiating a RNA-silencing antiviral defense that is targeted by Cmv2b.

scholarly journals Inheritance and QTL mapping of cucumber mosaic virus resistance in cucumber (Cucumis Sativus L.)

PLoS ONE ◽  
2018 ◽  
Vol 13 (7) ◽  
pp. e0200571 ◽  
Author(s):  
Lixue Shi ◽  
Yuhong Yang ◽  
Qing Xie ◽  
Han Miao ◽  
Kailiang Bo ◽  
...  
Keyword(s):  
Qtl Mapping ◽  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Cucumis Sativus ◽  
Virus Resistance ◽  
Cucumis Sativus L

scholarly journals IDENTIFICATION AND EFFECTS OF MIXED INFECTION OF Potyvirus ISOLATES WITH Cucumber mosaic virus IN CUCURBITS

2016 ◽  
Vol 29 (4) ◽  
pp. 1028-1035 ◽  
Author(s):  
GRAZIELA DA SILVA BARBOSA ◽  
JOSÉ ALBERSIO DE ARAÚJO LIMA ◽  
MANOEL ABILIO DE QUEIRÓZ ◽  
RITA DE CÁSSIA SOUZA DIAS ◽  
CRISTIANO SOUZA LIMA
Keyword(s):  
Host Range ◽  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Cucurbita Pepo ◽  
Protein Gene ◽  
Mixed Infections ◽  
Rt Pcr ◽  
Synergistic Interactions ◽  
Virus Interaction ◽  
Biological Differences

ABSTRACT Mixed infections in cucurbits are frequently observed in natural conditions between viruses from the Potyvirus genus and Cucumber mosaic virus (CMV), which significantly decreases productivity. The objectives of the present study was to compare the host range of PRSV-W, WMV, and ZYMV isolates and evaluate the effects of mixed infections with CMV in zucchini plants (Cucurbita pepo L.). Host range studies comprising 23 plant species confirmed some similarities and biological differences among the isolates of PRSV-W, ZYMV, and WMV. RT-PCR confirmed the amplification of DNA fragments of the PRSV-W, WMV, and ZYMV coat protein gene (cp) and cytoplasm inclusion gene (ci). The virus interaction studies in zucchini Caserta plants indicated synergistic interactions, particularly among species from the Potyvirus genus, and some CMV interference with some virus combinations.

Virus resistance in transgenic plants that express cucumber mosaic virus satellite RNA

Nature ◽  
1987 ◽  
Vol 328 (6133) ◽  
pp. 799-802 ◽  
Author(s):  
Bryan D. Harrison ◽  
Michael A. Mayo ◽  
David C. Baulcombe
Keyword(s):  
Transgenic Plants ◽  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Virus Resistance ◽  
Satellite Rna

CUCUMBER MOSAIC VIRUS RESISTANCE IN TRANSGENIC SAN MARZANO TOMATOES

1994 ◽  
pp. 377-386 ◽  
Author(s):  
S. Valanzuolo ◽  
S. Catello ◽  
M. Colombo ◽  
M. Dani ◽  
M.M. Monti ◽  
...  
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Virus Resistance
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