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Survey of viruses infecting Solanaceous plants and characterization of Tomato brown rugose fruit virus (ToBRFV) infecting pepper in Egypt

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Last updated: 28 Dec 2024

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Abstract

This study investigated the incidence and occurrence of virus-like symptoms in solanaceous plants, peppers (Capsicum spp.), potatoes (Solanum tuberosum) and tomatoes (Solanum lycopersicum) in Egypt. In this study, a total of 640 samples collected from different Governorates in Egypt. 640 samples were tested using DAS-ELISA, with 86.87% of samples showing positive reactions. It was also, revealed that Potato virus Y (PVY) was the most prevalent virus (16.41%), followed by Potato leaf roll virus (PLRV) (11.87%), Alfalfa mosaic virus (AMV) and Pepper mild mottle virus (PepMMoV) both (10.94%), However, Tomato spotted wilt virus (TSWV) was detected at low frequency (4.22%). Some samples were found coinfected with two or three different viruses (i. e. PVY+ ToMV, TMV+ PepMMoV+ TYLCV). Results demonstrated that potato was the most infected plans (37.65%) followed by tomato (27.97%) and then by pepper (21.25%). Potato was the most infected plant (37.65%), followed by tomato (27.97%), and then pepper (21.25%). Collected pepper leaf and fruit with negative results in all tested antisera were selected for identification the virus isolates which suggestive to be Tomato brown rugose fruit virus (ToBRFV) on the basis of symptomatology, host range, modes of transmission and particle morphology. RT-PCR was used to confirm the identity of the virus isolate. Among twenty-five plants species and cultivars, the virus isolate reacted positively with fourteen plants species. The virus was transmitted mechanically and by seed 1:2.5%. Examination of leaf tissue extracts of infected pepper plants by electron microscope revealed rod–shaped particles of 261-348 nm in length, in the range of the Tobamovirus group. Concerning varietal susceptibility, Helsinki and Mycelia pepper cultivars were highly susceptible (70%) followed by California Wonder (50%) and Vita Z 461 (40%). On the other hand, Vita Z Dragon cultivar was the lowest susceptible one (30%). RT-PCR analysis indicated that the virus isolate is ToBRFV.

DOI

10.21608/fjard.2024.342111

Keywords

Solanaceae, ToBRFV, Host rang, Electron Microscope, RT- PCR

Authors

First Name

Khalifa,

Last Name

Mohamed.A.A

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Affiliation

Agric. Botany Dept., Fac. of Agric. Al- Azhar Univ, Naser City, Cairo 11884, Egypt.United Eastern Company for Development Egyptian Stockholding Co.

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First Name

A.M.

Last Name

El- Shazly

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Affiliation

Agric. Botany Dept., Fac. of Agric. Al- Azhar Univ, Naser City, Cairo 11884, Egypt.

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Orcid

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First Name

M.A.S.

Last Name

El- Kady

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Affiliation

Virus and Phytoplasma Res. Dept. Plant Pathology Res. Inst. Agric. Res. Centre (ARC), Giza, Egypt.

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First Name

A.M.

Last Name

Al Naggar

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Affiliation

Agric. Botany Dept., Fac. of Agric. Al- Azhar Univ, Naser City, Cairo 11884, Egypt.

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Volume

38

Article Issue

1

Related Issue

46198

Issue Date

2024-01-01

Receive Date

2024-02-19

Publish Date

2024-01-01

Page Start

56

Page End

76

Print ISSN

1110-7790

Online ISSN

2805-2528

Link

https://fjard.journals.ekb.eg/article_342111.html

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https://fjard.journals.ekb.eg/service?article_code=342111

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342,111

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Research articles.

Type Code

1,920

Publication Type

Journal

Publication Title

Fayoum Journal of Agricultural Research and Development

Publication Link

https://fjard.journals.ekb.eg/

MainTitle

Survey of viruses infecting Solanaceous plants and characterization of Tomato brown rugose fruit virus (ToBRFV) infecting pepper in Egypt

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Article

Created At

28 Dec 2024