Virosen des Hopfens (Humulus lupulus L.) in Europa

Schmidt, H. E.; Klinkowski, M.

doi:10.1111/j.1439-0434.1965.tb04087.x

Cited by 8 publications

(4 citation statements)

References 26 publications

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“…The effect on yield of tolerant cultivars is probably slight (Neve & Lewis, 1977) but infected Golding plants yield very poorly and usually die prematurely; sensitive cultivars now represent only 8% of the 5844 ha of hops in England. The disease occurs widely in Europe (Schmidt & Klinkowski, 1965), Tasmania (Cartledge, 1956) and North America (Skotland, 1960).…”

Section: Introductionmentioning

confidence: 99%

Host range, purification and some properties of hop mosaic virus

Adams

Barbara

1980

Annals of Applied Biology

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S U M M A R YHop mosaic virus (HMV) causes severe symptoms in sensitive hop (Humulus Zupulus) cultivars, but over 90% of hop plants grown in England belong to tolerant cultivars and most of these plants are infected. HMV infected 1 1 herbaceous species symptomlessly but infection was systemic in only three of these: Nicotiana clevelandii, N . debneyi and Urtica urens. HMV did not infect 33 other species in 13 families. The virus was transmitted in the non-persistent manner by the aphids Myzus persicae, Macrosiphum euphorbiae and Phorodon humuli. It was not seed-borne in N . clevelandii, U. wens or hop.HMV was purified by precipitation from N . clevelandii extracts with polyethylene glycol followed by centrifugation in sucrose density gradients. The preparations contained filamentous particles c. 14 x 650 nm composed of c. 6% single-stranded RNA of mol. wt c. 3.0 x lo6 and a single protein species of mol. wt c. 34 000. HMV showed distant serological relationships to carnation latent, potato M, cowpea mild mosaic and hop latent viruses but it did not react with antisera to six other carlaviruses. The cryptogram for HMV is R/1: 3.0/(6): E/E: S/Ve/Ap.

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Section: Introductionmentioning

confidence: 99%

Host range, purification and some properties of hop mosaic virus

Adams

Barbara

1980

Annals of Applied Biology

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“…Some symptoms resemble the ring-and band-pattern mosaic and others the line-pattern reported in Europe (Schmidt & Klinkowski, 1965, Schmidt, Borde & Heinrich, 1970 and in North America (Romanco & Skotland, 1964), but the causal agent is not known in Japan. Some symptoms resemble the ring-and band-pattern mosaic and others the line-pattern reported in Europe (Schmidt & Klinkowski, 1965, Schmidt, Borde & Heinrich, 1970 and in North America (Romanco & Skotland, 1964), but the causal agent is not known in Japan.…”

Section: Introductionmentioning

confidence: 86%

Apple mosaic virus isolated from hop plants in Japan

Shimmen

Sasaki

Shikata

1985

Annals of Applied Biology

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A strain of apple mosaic virus was isolated from hop plants in Japan. The virus was purified from young hop plants and back-inoculated to virus-free hop plants obtained by meristem tip culture. Inoculated plants developed chlorotic spots, ringspots and a band pattern accompanied by necrosis in the inoculated and systemically infected leaves. Shoot tips of infected plants sometimes became necrotic and these symptoms resembled those of a ring-and band-pattern mosaiclike disease prevalent in hop gardens in Japan. Since apple mosaic virus was recovered from infected plants, it is likely that the virus was the causal agent of this disease.Agar gel double diffusion tests and ELISA showed the hop virus to be serologically closely related to apple mosaic virus (ApMV), and distantly related to prunus necrotic ringspot virus (PNRSV).The virus had a narrow host range, and infected only cucumber of 18 species of Cucurbitaceae, Chenopodiaceae, Leguminosae or Solanaceae inoculated. It produced chlorotic spots on the inoculated cotyledons of cucumber, but no systemic infection. By contrast, ApMV from apple and PNRSV from peach had wide host ranges and infected cucumber plants systemically.ApMV from hop in Japan 31 1 A C K N O W L E D G E M E N T SWe are grateful to Dr D. J. Barbara (East Malling Research Station) for supplying antisera to RV-3 and chestnut mosaic virus, to Dr K. Sawamura (Hirosaki University) for collecting apple petals infected with ApMV, to Dr N. Ochiai (Fukushima Prefectural Agriculture Experimental Station) for collecting peach petals infected with PNRSV and to Drs A. N. Adams and J. M. Thresh (East Malling Research Station) for heipfui comments on the manuscript.

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“…Hop mosaic disease was first described by Salmon (156), although characteristic symptoms of this disease were recorded as early as 1907 in experimental plots in the United Kingdom (94). HpMV has since been found infecting hops in commercial hop yards throughout Europe (144,167), Australia (140), the United States (83), New Zealand (76), China (202), Japan (79), and South Africa (196).…”

Section: Carlavirusesmentioning

confidence: 99%