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Breakage of resistance to Cucumber mosaic virus by co-infection with Zucchini yellow mosaic virus: Enhancement of CMV accumulation independent of symptom expression
Year:
2004
Source of publication :
Archives of Virology
Authors :
Gaba, Victor
;
.
Gal-On, Amit
;
.
Volume :
149
Co-Authors:
Wang, Y., Department of Virology, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Lee, K.C., Department of Biological Sciences, National University of Singapore, Singapore
Gaba, V., Department of Virology, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Wong, S.M., Department of Biological Sciences, National University of Singapore, Singapore
Palukaitis, P., Scottish Crop Research Institute, Invergowrie, Dundee, United Kingdom
Gal-On, A., Department of Virology, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel, Department of Virology, Agricultural Research Organization, Volcani Center, Bet Dagan 50-250, Israel
Facilitators :
From page:
379
To page:
396
(
Total pages:
18
)
Abstract:
Resistance to the cucumovirus Cucumber mosaic virus (CMV) in cucumber cv. Delila was manifested as a very low level of accumulation of viral RNA and capsid protein, and an absence of CMV-induced symptoms. In addition, resistance was observed at the single cell level, with a reduction in accumulation of CMV RNAs, compared to accumulation in cells of the susceptible cucumber cv. Bet Alpha. Resistance to CMV in cv. Delila was broken by co-infection with the potyvirus Zucchini yellow mosaic virus (ZYMV). Resistance breakage in cv. Delila plants was manifested by an increase in the accumulation of (+) and (-) CMV RNA as well as CMV capsid protein, with no increase in the level of accumulation of ZYMV Resistance breakage in the resistant cultivar by ZYMV also occurred at the single cell level. Thus, synergistic interactions known to occur between a potyvirus and a cucumovirus led to resistance breakage during a double infection. However, resistance breakage was not accompanied by an increase in disease symptoms beyond those induced by ZYMV itself. On co-inoculation with an asymptomatic variant of ZYMV-AG an enhancement of CMV infection occurred without disease manifestation. Consequently, intensification of viral RNA and capsid protein accumulation can occur without a corresponding increase in disease development, suggesting that different host genes regulate viral accumulation and disease development in the CMV-resistant cucumber plants.
Note:
Related Files :
Cucumber mosaic virus
Cucumis sativus
Cucurbita
Genetics
Plant Disease
Virology
Zucchini yellow mosaic virus
Show More
Related Content
More details
DOI :
10.1007/s00705-003-0240-4
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
26889
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:26
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Scientific Publication
Breakage of resistance to Cucumber mosaic virus by co-infection with Zucchini yellow mosaic virus: Enhancement of CMV accumulation independent of symptom expression
149
Wang, Y., Department of Virology, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Lee, K.C., Department of Biological Sciences, National University of Singapore, Singapore
Gaba, V., Department of Virology, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Wong, S.M., Department of Biological Sciences, National University of Singapore, Singapore
Palukaitis, P., Scottish Crop Research Institute, Invergowrie, Dundee, United Kingdom
Gal-On, A., Department of Virology, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel, Department of Virology, Agricultural Research Organization, Volcani Center, Bet Dagan 50-250, Israel
Breakage of resistance to Cucumber mosaic virus by co-infection with Zucchini yellow mosaic virus: Enhancement of CMV accumulation independent of symptom expression
Resistance to the cucumovirus Cucumber mosaic virus (CMV) in cucumber cv. Delila was manifested as a very low level of accumulation of viral RNA and capsid protein, and an absence of CMV-induced symptoms. In addition, resistance was observed at the single cell level, with a reduction in accumulation of CMV RNAs, compared to accumulation in cells of the susceptible cucumber cv. Bet Alpha. Resistance to CMV in cv. Delila was broken by co-infection with the potyvirus Zucchini yellow mosaic virus (ZYMV). Resistance breakage in cv. Delila plants was manifested by an increase in the accumulation of (+) and (-) CMV RNA as well as CMV capsid protein, with no increase in the level of accumulation of ZYMV Resistance breakage in the resistant cultivar by ZYMV also occurred at the single cell level. Thus, synergistic interactions known to occur between a potyvirus and a cucumovirus led to resistance breakage during a double infection. However, resistance breakage was not accompanied by an increase in disease symptoms beyond those induced by ZYMV itself. On co-inoculation with an asymptomatic variant of ZYMV-AG an enhancement of CMV infection occurred without disease manifestation. Consequently, intensification of viral RNA and capsid protein accumulation can occur without a corresponding increase in disease development, suggesting that different host genes regulate viral accumulation and disease development in the CMV-resistant cucumber plants.
Scientific Publication
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