Differentiation Among Three Egyptian Isolates of Citrus psorosis virus

El-Dougdoug, K. A.; Ghazal, S. A.; Mousa, Ahmed Abdelmoniem; Fahmy, Hanan A.; Sofy, Ahmed R.

doi:10.3923/ijv.2009.49.63

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…NPs caused different morpho-physiological variations based on their chemical composition, size, surface contact, and, in particular, dose [ 17 , 18 ]. The most prevalent impact of virus stress on plant physiology is the growth deficiency that is critical to the survival of a plant that has been exposed to this stress [ 6 , 19 , 20 , 21 , 22 , 23 , 24 ]. The current study showed that ToMV could induce serious disease, contributing to a decline in growth indices that the exogenous use of ZnO-NPs could ameliorate.…”

Section: Resultsmentioning

confidence: 99%

Ameliorating the Adverse Effects of Tomato mosaic tobamovirus Infecting Tomato Plants in Egypt by Boosting Immunity in Tomato Plants Using Zinc Oxide Nanoparticles

Sofy

Hmed

et al. 2021

Molecules

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Tomato mosaic virus (ToMV) is one of the economically damageable Tobamovirus infecting the tomato in Egypt that has caused significant losses. It is therefore of great interest to trigger systemic resistance to ToMV. In this endeavor, we aimed to explore the capacity of ZnO-NPs (zinc oxide nanoparticles) to trigger tomato plant resistance against ToMV. Effects of ZnO-NPs on tomato (Solanum lycopersicum L.) growth indices and antioxidant defense system activity under ToMV stress were investigated. Noticeably that treatment with ZnO-NPs showed remarkably increased growth indices, photosynthetic attributes, and enzymatic and non-enzymatic antioxidants compared to the challenge control. Interestingly, oxidative damage caused by ToMV was reduced by reducing malondialdehyde, H2O2, and O2 levels. Overall, ZnO-NPs offer a safe and economic antiviral agent against ToMV.

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Section: Resultsmentioning

confidence: 99%

Ameliorating the Adverse Effects of Tomato mosaic tobamovirus Infecting Tomato Plants in Egypt by Boosting Immunity in Tomato Plants Using Zinc Oxide Nanoparticles

Sofy

Hmed

et al. 2021

Molecules

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DETECTION OF Citrus psorosis ophiovirus IN CITRUS CV. NAVEL ORANGE IN EGYPT

Salem

Badawy

Salama

et al. 2010

Egyptian Journal of Genetics and Cytology

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Citrus Psorosis Virus: Current Insights on a Still Poorly Understood Ophiovirus

et al. 2020

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Citrus psorosis was reported for the first time in Florida in 1896 and was confirmed as a graft-transmissible disease in 1934. Citrus psorosis virus (CPsV) is the presumed causal agent of this disease. It is considered as a type species of the genus Ophiovirus, within the family Aspiviridae. CPsV genome is a negative single-stranded RNA (-ssRNA) with three segments. It has a coat protein (CP) of 48 kDa and its particles are non-enveloped with naked filamentous nucleocapsids existing as either circular open structures or collapsed pseudo-linear forms. Numerous rapid and sensitive immuno-enzymatic and molecular-based detection methods specific to CPsV are available. CPsV occurrence in key citrus growing regions across the world has been spurred the establishment of the earliest eradication and virus-free budwood programs. Despite these efforts, CPsV remains a common and serious challenge in several countries and causes a range of symptoms depending on the isolate, the cultivar, and the environment. CPsV can be transmitted mechanically to some herbaceous hosts and back to citrus. Although CPsV was confirmed to be seedborne, the seed transmission is not efficient. CPsV natural spread has been increasing based on both CPsV surveys detection and specific CPsV symptoms monitoring. However, trials to ensure its transmission by a soil-inhabiting fungus and one aphid species have been unsuccessful. Psorosis disease control is achieved using CPsV-free buds for new plantations, launching budwood certification and indexing programs, and establishing a quarantine system for the introduction of new varieties. The use of natural resistance to control CPsV is very challenging. Transgenic resistance to at least some CPsV isolates is now possible in at least some sweet orange varieties and constitutes a promising biotechnological alternative to control CPsV. This paper provides an overview of the most remarkable achievements in CPsV research that could improve the understanding of the disease and lead the development of better control strategies.

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Differentiation Among Three Egyptian Isolates of Citrus psorosis virus

Cited by 4 publications

References 18 publications

Ameliorating the Adverse Effects of Tomato mosaic tobamovirus Infecting Tomato Plants in Egypt by Boosting Immunity in Tomato Plants Using Zinc Oxide Nanoparticles

Ameliorating the Adverse Effects of Tomato mosaic tobamovirus Infecting Tomato Plants in Egypt by Boosting Immunity in Tomato Plants Using Zinc Oxide Nanoparticles

DETECTION OF Citrus psorosis ophiovirus IN CITRUS CV. NAVEL ORANGE IN EGYPT

Citrus Psorosis Virus: Current Insights on a Still Poorly Understood Ophiovirus

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