Articles
THE PRESENT STATUS OF TOMATO AND PEPPER VIRUSES
Article number
127_3
Pages
39 – 64
Language
Abstract
The viruses reported to infect tomato in nature are over 30 belónging to 16 different taxonomic groups, whereas more than 20 in 15 taxonomic groups are those infecting pepper.
The most important and widespread of these viruses are reviewed with special reference to their biological and epidemiological behaviour.
Viruses transmitted mechanically and/or through the soil without a vector, like some tobamo-, potex- and tombusviruses seem to prevail in protected crops, whereas insect-transmitted viruses, like members of the poty-, cucumo-, luteo- and geminivirus groups, are more frequent and severe in open fields.
Como- and nepoviruses are rarely the cause of outbreaks of economic relevance in either crop.
Conversely, tobraviruses (e.g. tobacco rattle virus) may sometimes pose economic problems.
Certain viruses (e.g.
CMV, TMV, ToMV, PVX, PVY and AMV) are ubiquitous, others (e.g. tomato spotted wilt and members of the geminivirus group) are more frequently found in subtropical and tropical environments.
Several additions to the list of tomato and pepper viruses have been made in recent years.
Also, new pathotypes of known viruses have emerged.
Although many of the recent records are well substantiated and the viruses are properly described and identified comparative work needs still to be done for a better definition of some of these viruses, especially members of the luteovirus and geminivirus groups.
The most important and widespread of these viruses are reviewed with special reference to their biological and epidemiological behaviour.
Viruses transmitted mechanically and/or through the soil without a vector, like some tobamo-, potex- and tombusviruses seem to prevail in protected crops, whereas insect-transmitted viruses, like members of the poty-, cucumo-, luteo- and geminivirus groups, are more frequent and severe in open fields.
Como- and nepoviruses are rarely the cause of outbreaks of economic relevance in either crop.
Conversely, tobraviruses (e.g. tobacco rattle virus) may sometimes pose economic problems.
Certain viruses (e.g.
CMV, TMV, ToMV, PVX, PVY and AMV) are ubiquitous, others (e.g. tomato spotted wilt and members of the geminivirus group) are more frequently found in subtropical and tropical environments.
Several additions to the list of tomato and pepper viruses have been made in recent years.
Also, new pathotypes of known viruses have emerged.
Although many of the recent records are well substantiated and the viruses are properly described and identified comparative work needs still to be done for a better definition of some of these viruses, especially members of the luteovirus and geminivirus groups.
Authors
G.P. Martelli, A. Quacquarelli
Keywords
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