Results 151 to 160 of about 2,310 (194)
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Ultrastructure of sugarbeet leaves infected with beet western yellows virus
Journal of Ultrastructure Research, 1972An electron microscope study of sugarbeet (Beta vulgaris L.) leaves infected with beet western yellows virus (BWYV) revealed isometric particles, 24–30 nm in diameter, in phloem and mesophyll cells. Compared to ribosomes the particles were slightly larger, more deeply stained, and sharper in outline. Many particles showed an electron lucent center. The
K, Esau, L L, Hoefert
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Beet western yellows virus infects the carnivorous plant Nepenthes mirabilis
Archives of Virology, 2016Although poleroviruses are known to infect a broad range of higher plants, carnivorous plants have not yet been reported as hosts. Here, we describe the first polerovirus naturally infecting the pitcher plant Nepenthes mirabilis. The virus was identified through bioinformatic analysis of NGS transcriptome data.
Miguel, Sissi +7 more
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Virus Genes, 2010
Beet western yellows virus (BWYV) has previously been reported as an agent of sugar beet yellowing disease in China. In this article, the complete genomic RNA sequences of two Chinese BWYV isolates infecting beet from Inner Mongolia (BWYV-IM) and Gansu (BWYV-GS) were determined and compared with three beet poleroviruses (BMYV, BChV and BWYV-US) and ...
Hai-Ying, Xiang +7 more
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Beet western yellows virus (BWYV) has previously been reported as an agent of sugar beet yellowing disease in China. In this article, the complete genomic RNA sequences of two Chinese BWYV isolates infecting beet from Inner Mongolia (BWYV-IM) and Gansu (BWYV-GS) were determined and compared with three beet poleroviruses (BMYV, BChV and BWYV-US) and ...
Hai-Ying, Xiang +7 more
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Development of infection with beet western yellows virus in the sugarbeet
Virology, 1972Abstract Electron microscopy of successively older leaves of sugarbeet ( Beta vulgaris L.) infected with beet western yellows virus (BWYV) revealed the steps in the infection of leaf tissues by the virus and gave some insight into the events leading to viral multiplication in host cells. The sequence of the infection is interpreted as follows. Virus
K, Esau, L L, Hoefert
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Beet western yellows virus in phloem of pennycress
Journal of Ultrastructure Research, 1984The effects of beet western yellows virus on pennycress phloem were investigated using electron microscopy and collecting at intervals after aphid inoculation. Particles were seen in mature sieve elements from the earliest collection date, but they became less numerous in sieve elements of older leaves as the infection progressed.
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Resistance to Beet Western Yellows Virus Among Forage Brassicas
Plant Disease, 1990Fourteen forage Brassica cultivars representing four species were evaluated for resistance to beet western yellows virus (BWYV), potato leafroll virus (PLRV), and the tomato yellow top strain of PLRV (PLRV-TY) under field exposure. Incidence of field infection with BWYV ranged in several susceptibility classes from less than 2 to 100%.
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Genetics of resistance to beet western yellows virus in lettuce
Plant Pathology, 1991Resistance to beet western yellows virus (BWYV) in the lettuce cultivars Burse 17 and Crystal Heart was controlled by a single recessive gene designated bwy. ELISA tests showed that resistant plants were not immune to infection by BWYV, and may develop some mild symptoms.
D. A. C. PINK +2 more
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Yield-limiting potential of Beet western yellows virus in Brassica napus
Australian Journal of Agricultural Research, 2007Losses in seed yield and quality caused by infection with Beet western yellows virus (BWYV) alone or in combination with direct feeding damage by Myzus persicae (green peach aphid) were quantified in field experiments with Brassica napus (canola, oilseed rape) in the ‘grainbelt’ region of south-western Australia.
R. A. C. Jones, B. A. Coutts, J. Hawkes
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FIRST REPORT OF BEET WESTERN YELLOW VIRUS ON PEPPER IN CHINA
Journal of Plant Pathology, 2015Beet western yellows virus (BWYV, genus Polerovirus, family Luteoviridae) infects Beta vulgaris, Raphanus sativus, Capsella bursa-pastoris plus a number of common weed species. In August 2014, pepper plants (Capsicum frutescens) showing mosaic and crinkling of the young leaves were observed in greenhouses in Tangshan city, Hebei province (China ...
Yuan, W. +4 more
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Beet western yellows virus in border parenchyma cells of Pennycress
Journal of Ultrastructure Research, 1985Abstract Beet western yellows virus in vein border parenchyma cells of Pennycress leaves induces some unusual cellular modifications, particularly to the cytoplasmic organelles. Relatively advanced stages of infection were examined in leaves 4 weeks after aphid inoculation with the virus.
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