Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 34337
Title Transmission of tomato spotted wilt virus by Frankliniella occidentalis after viral acquisition during the first larval stage.
Author(s) Wetering, F. van de; Goldbach, R.; Peters, D.
Source Acta Horticulturae 431 (1996). - ISSN 0567-7572 - p. 350 - 358.
Department(s) Laboratory of Virology
Publication type Non-refereed article in scientific journal
Publication year 1996
Abstract The efficiency at which tomato spotted wilt virus (TSWV) was transmitted by adult Frankliniella occidentalis that ingested the virus at different larval ages was determined by a petunia leaf-disk assay and enzyme-linked immunosorbent assay (ELISA). The results show that 0- to 2-day-old larvae (mostly first instars) can acquire TSWV, which suggests that after ingestion and accumulation of virus they were subsequently converted into transmitters in the adult stage. Older larvae (second instars) failed to acquire TSWV, because as adults they did not transmit TSWV. The relation between age at which virus acquisition took place and the amount of virus ingested was analyzed by ELISA. Ingestion of viral antigen increased with age of larvae, and the amount of virus ingested could not be correlated with the development of infectivity in the thrips. The finding that only first-stage larvae might be able to acquire TSWV is crucial for understanding the epidemiology of tomato spotted wilt disease.
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