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Transmission of a New Polerovirus Infecting Pepper by the Whitefly Bemisia tabaci
Year:
2019
Source of publication :
Journal of Virology
Authors :
Abu-Ghosh, Said
;
.
Dombrovsky, Aviv
;
.
Ghanim, Murad
;
.
Haviv, Sabrina
;
.
Kanakala, Surapathrudu
;
.
Kontsedalov, Svetlana
;
.
Lebedev, Galina
;
.
Luria, Neta
;
.
Mawassi, Munir
;
.
Sela, Noa
;
.
Volume :
93
Co-Authors:

Silverman, D., Agricultural Extension Service, Ministry of Agriculture & Rural Development, Rishon LeZion, Israel; Alon, T., Agricultural Extension Service, Ministry of Agriculture & Rural Development, Rishon LeZion, Israel; Mor, N., Agricultural Extension Service, Ministry of Agriculture & Rural Development, Rishon LeZion, Israel;   Czosnek, H., Institute of Plant Sciences and Genetics in Agriculture, Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel;

Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

Many animal and plant viruses depend on arthropods for their transmission. Virus-vector interactions are highly specific, and only one vector or one of a group of vectors from the same family is able to transmit a given virus. Poleroviruses (Luteoviridae) are phloem-restricted RNA plant viruses that are exclusively transmitted by aphids. Multiple aphid-transmitted polerovirus species commonly infect pepper, causing vein yellowing, leaf rolling, and fruit discoloration. Despite low aphid populations, a recent outbreak with such severe symptoms in many bell pepper farms in Israel led to reinvestigation of the disease and its insect vector. Here we report that this outbreak was caused by a new whitefly (Bemisia tabaci)-transmitted polerovirus, which we named Pepper whitefly-borne vein yellows virus (PeWBVYV). PeWBVYV is highly (>95%) homologous to Pepper vein yellows virus (PeVYV) from Israel and Greece on its 5' end half, while it is homologous to African eggplant yellows virus (AeYV) on its 3' half. Koch's postulates were proven by constructing a PeWBVYV infectious clone causing the pepper disease, which was in turn transmitted to test pepper plants by B. tabaci but not by aphids. PeWBVYV represents the first report of a whitefly-transmitted polerovirus.IMPORTANCE The high specificity of virus-vector interactions limits the possibility of a given virus changing vectors. Our report describes a new virus from a family of viruses strictly transmitted by aphids which is now transmitted by whiteflies (Bemisia tabaci) and not by aphids. This report presents the first description of polerovirus transmission by whiteflies. Whiteflies are highly resistant to insecticides and disperse over long distances, carrying virus inoculum. Thus, the report of such unusual polerovirus transmission by a supervector has extensive implications for the epidemiology of the virus disease, with ramifications concerning the international trade of agricultural commodities. Copyright © 2019 American Society for Microbiology.

Note:
Related Files :
aphid
Bemisia tabaci
Circulative transmission
Polerovirus
transmission
Show More
Related Content
More details
DOI :
10.1128/JVI.00488-19
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
43201
Last updated date:
02/03/2022 17:27
Creation date:
13/08/2019 12:36
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Scientific Publication
Transmission of a New Polerovirus Infecting Pepper by the Whitefly Bemisia tabaci
93

Silverman, D., Agricultural Extension Service, Ministry of Agriculture & Rural Development, Rishon LeZion, Israel; Alon, T., Agricultural Extension Service, Ministry of Agriculture & Rural Development, Rishon LeZion, Israel; Mor, N., Agricultural Extension Service, Ministry of Agriculture & Rural Development, Rishon LeZion, Israel;   Czosnek, H., Institute of Plant Sciences and Genetics in Agriculture, Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel;

Transmission of a New Polerovirus Infecting Pepper by the Whitefly Bemisia tabaci

Many animal and plant viruses depend on arthropods for their transmission. Virus-vector interactions are highly specific, and only one vector or one of a group of vectors from the same family is able to transmit a given virus. Poleroviruses (Luteoviridae) are phloem-restricted RNA plant viruses that are exclusively transmitted by aphids. Multiple aphid-transmitted polerovirus species commonly infect pepper, causing vein yellowing, leaf rolling, and fruit discoloration. Despite low aphid populations, a recent outbreak with such severe symptoms in many bell pepper farms in Israel led to reinvestigation of the disease and its insect vector. Here we report that this outbreak was caused by a new whitefly (Bemisia tabaci)-transmitted polerovirus, which we named Pepper whitefly-borne vein yellows virus (PeWBVYV). PeWBVYV is highly (>95%) homologous to Pepper vein yellows virus (PeVYV) from Israel and Greece on its 5' end half, while it is homologous to African eggplant yellows virus (AeYV) on its 3' half. Koch's postulates were proven by constructing a PeWBVYV infectious clone causing the pepper disease, which was in turn transmitted to test pepper plants by B. tabaci but not by aphids. PeWBVYV represents the first report of a whitefly-transmitted polerovirus.IMPORTANCE The high specificity of virus-vector interactions limits the possibility of a given virus changing vectors. Our report describes a new virus from a family of viruses strictly transmitted by aphids which is now transmitted by whiteflies (Bemisia tabaci) and not by aphids. This report presents the first description of polerovirus transmission by whiteflies. Whiteflies are highly resistant to insecticides and disperse over long distances, carrying virus inoculum. Thus, the report of such unusual polerovirus transmission by a supervector has extensive implications for the epidemiology of the virus disease, with ramifications concerning the international trade of agricultural commodities. Copyright © 2019 American Society for Microbiology.

Scientific Publication
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