Kinetics of Systemic Invasion and Latent and Incubation Periods of Tomato severe rugose virus and Tomato chlorosis virus in Single and Co-Infections in Tomato Plants
| Autor: | Gabriel M. Favara, Jorge Alberto Marques Rezende, Juan Pablo Edwards Molina, Daiana Bampi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine Veterinary medicine Plant Science Whitefly Biology 01 natural sciences Middle East 03 medical and health sciences Crinivirus Solanum lycopersicum medicine Animals Tomato severe rugose virus Incubation Plant Diseases Coinfection Inoculation fungi food and beverages Tomato chlorosis virus biology.organism_classification medicine.disease Kinetics 030104 developmental biology VÍRUS DE PLANTAS Solanum Agronomy and Crop Science Brazil 010606 plant biology & botany |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1943-7684 0031-949X |
| Popis: | Tomato severe rugose virus (ToSRV) and Tomato chlorosis virus (ToCV) are among the major viruses that affect tomato (Solanum lycopersicum) development and yield in Brazil. ToSRV and ToCV are transmitted in a persistent circulative and semipersistent manner, respectively, by the whitefly Bemisia tabaci Middle East-Asia Minor 1, considered the main vector of these viruses. In this study, the kinetics of systemic invasion and the latent and incubation periods of ToSRV and ToCV were evaluated in singly and doubly infected tomato plants. Both viruses moved systemically into tomato plants as early as 1 day after inoculation. The mean ToCV latent periods in single infections and co-infections with ToSRV were 13 and 11 days, respectively, while incubation periods in single and co-infections were, on average, 30 and 31 days, respectively. For ToSRV, the mean latent period was 7 days in single infections and 6 days in co-infections with ToCV. Incubation periods were, on average, 18 and 17 days in single and co-infections, respectively. Because latent periods for both viruses were shorter than their respective incubation periods, field-infected tomato plants may act as sources of inocula soon after infection and before onset of symptoms. |
| Databáze: | OpenAIRE |
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