Biological and serological procedures to detect three nepoviruses in fruit trees

Jaroslav Polák, Michaela Chaloupková and Milan Jokeš
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Jaroslav Polák: Department of Virology, Division of Plant Medicine, Research Institute of Crop Production, Prague-Ruzyně, Czech Republic
Michaela Chaloupková: Department of Virology, Division of Plant Medicine, Research Institute of Crop Production, Prague-Ruzyně, Czech Republic
Milan Jokeš: Department of Virology, Division of Plant Medicine, Research Institute of Crop Production, Prague-Ruzyně, Czech Republic

Plant Protection Science, 2004, vol. 40, issue 4, 121-127

Abstract: Cherry leaf roll virus (CLRV), Myrobalan latent ringspot virus (MLRSV) and Strawberry latent ringspot virus (SLRSV) were transferred by budding to woody trees, hybrid Ishtara, peach cv. GF 305 and cv. Lesiberian. Three buffers with antioxidants and stabilisers: 0.01M phosphate with 1% caffeine; 0.007M phosphate-0.01M veronal with 0.01M cysteine hydrochloride and 0.007 EDTA; 0.015M phosphate with 1% nicotine and 0.066M phosphate buffer without additives were compared for their efficiency in mechanical transmission from woody sources to herbaceous hosts (Chenopodium quinoa and C. amaranticolor). 0.007M phosphate-0.01M veronal buffer with 0.01M cysteine hydrochloride, and 0.007 EDTA and 0.015M phosphate buffer with 1% nicotine were found to be the best buffers for the three nepoviruses. Both biological transmission to herbaceous assay hosts and detection by ELISA in the investigated tree are necessary to reliably detect the three nepoviruses. Biological detection is reliable from April to June, and in September and October. ELISA detection is also more difficult in July and August. The suitability of C. quinoa and C. amaranticolor to maintain CLRV, MLRSV and SLRSV was compared. C. amaranticolor plants were found to be more suitable for CLRV and SLRSV, infected plants grow over 6 months after mechanical inoculation by the nepoviruses. C. quinoa plants proved to be most suitable for maintenance of MLRSV, while C. amaranticolor is a symptomless host of MLRSV. Reinoculation with the nepoviruses is recommended in intervals of 4 to 6 months.

Keywords: Cherry leaf roll virus; Myrobalan latent ringspot virus; Strawberry latent ringspot virus; mechanical transmission; herbaceous hosts; bud transmission; fruit trees; DAS-ELISA; electron microscopy (search for similar items in EconPapers)
Date: 2004
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:40:y:2004:i:4:id:468-pps

DOI: 10.17221/468-PPS

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