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Investigation of disease progress and biological differentiation of soil- borne viruses on rye, triticale and wheat

In the frame of the investigation of epidemiology of soil-borne viruses, like the Soil-borne cereal mosaic virus (SBCMV), Soil-borne wheat mosaic virus (SBWMV) and the Bymovirus Wheat spindle streak mosaic virus (WSSMV), which were transmitted by fungal vector Polymyxa graminis Ledingham, the infect...

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Bibliographic Details
Published in:Gesunde Pflanzen 2006-12, Vol.58 (4), p.231-238
Main Authors: Kastirr, U, Ehrig, HWortmann und F
Format: Article
Language:English
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Summary:In the frame of the investigation of epidemiology of soil-borne viruses, like the Soil-borne cereal mosaic virus (SBCMV), Soil-borne wheat mosaic virus (SBWMV) and the Bymovirus Wheat spindle streak mosaic virus (WSSMV), which were transmitted by fungal vector Polymyxa graminis Ledingham, the infection progress in different cereals was observed. The detection of furovirus and bymovirus in field plants was depending on temperature conditions during the vegetation period and the kind of cereals. The furoviruses tolerate a broad temperature spectrum and once established infection is detectable until the harvest time. In contrast to this observation, the propagation of WSSMV seems to be restricted to lower temperatures. Consequently, this virus is detected best at the end of February until the middle of April. Among the tested cereals, rye becomes more early infected than wheat and triticale. Both furoviruses could be differed by variable virulence reactions on cereal hosts and indicator plants. The SBCMV infects rye, triticale and wheat but not barley. The SBWMV is able to contaminate beside these cultures barley too. Both viruses are distinguished in the infection typ in Nicotiana benthamiana. Whereas SBCMV isolates spread out in the whole plant and cause yellowing and the die back of plants, the SBWMV infects the inoculated leaves only.Original Abstract: Im Rahmen der Untersuchungen zur Epidemiologie der bodenbuertigen Getreideviren, die Furoviren Soil-borne cereal mosaic virus (SBCMV), Soil-borne wheat mosaic virus (SBWMV) und das Bymovirus Wheat spindle streak mosaic virus (WSSMV), die durch den pilzlichen Vektor, Polymyxa graminis Ledingham, uebertragen werden, wurde der Infektionsverlauf in verschiedenen Getreidekulturen beobachtet. Die Nachweisbarkeit des SBCMV und WSSMV unterscheidet sich waehrend der Vegetationsperiode in Abhaengigkeit von den Temperaturbedingungen und der Getreideart. Furoviren tolerieren ein breiteres Temperaturspektrum. Sie sind nach Etablierung der Infektion bis zur Ernte kontinuierlich nachweisbar. Die Entwicklung der Bymoviren ist an niedrige Temperaturen gebunden. Der serologische Nachweis des WSSMV ist unter Feldbedingungen auf den Zeitraum zwischen Ende Februar bis Mitte April beschraenkt. von den untersuchten Getreidearten wird Roggen wesentlich zeitiger in der Vegetation infiziert als Triticale und Weizen. Die beiden Furoviren koennen anhand ihrer unterschiedlichen Virulenzreaktionen biologisch an Getreidewirten und Indika
ISSN:0367-4223
1439-0345
DOI:10.1007/s10343-006-0136-9