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BIOLOGY OF PLANT RHABDOVIRUSES * (2005)

Jackson, Andrew O. ; Dietzgen, Ralf G. ; Goodin, Michael M. ; [et al.]

Palo Alto, Calif. : Annual Reviews

Annual Review of Phytopathology 43 (2005), S. 623-660

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ISSN: 0066-4286

Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff

Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Biology

Notes: The Rhabdoviridae, whose members collectively infect invertebrates, animals, and plants, form a large family that has important consequences for human health, agriculture, and wildlife ecology. Plant rhabdoviruses can be separated into the genera Cytorhabdovirus and Nucleorhabdovirus, based on their sites of replication and morphogenesis. This review presents a general overview of classical and contemporary findings about rhabdovirus ecology, pathology, vector relations, and taxonomy. The genome organization and structure of several recently sequenced nucleorhabdoviruses and cytorhabdoviruses is integrated with new cell biology findings to provide a model for the replication of the two genera. A prospectus outlines the exciting opportunities for future research that will contribute to a more detailed understanding of the biology, biochemistry, replication and host interactions of the plant rhabdoviruses.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1146/annurev.phyto.43.011205.141136

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Vesicle-associated double-stranded ribonucleic acid genetic elements in Agaricus bisporus (1994)

Romaine, C. Peter ; Schlagnhaufer, Beth ; Goodin, Michael M.

Springer

Current genetics 25 (1994), S. 128-134

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ISSN: 1432-0983

Keywords: Agaricus bisporus ; dsRNA ; dsRNA genetic elements ; Fungal vesicles

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Abstract Double-stranded ribonucleic acids (dsRNAs) were isolated from fruit bodies of commercial strains of the cultivated mushroom (Agaricus bisporus) by poly-ethylene glycol-NaCl precipitation, differential centrifugation, rate-zonal centrifugation in sucrose, and equilibrium centrifugation in cesium sulphate. In all seven of the mushroom isolates examined, three dsRNAs were identified: two major dsRNA segments of 〉13.1-kb (L-RNA) and 2.4-kb (S-RNA) and a minor segment of 5.2-kb (M-RNA). L-, M-, and S-RNAs co-purified with spherical fungal vesicles measuring approximately 75 nm in diameter. The three dsRNAs were intimately associated with the vesicles as suggested by their lower buoyant density in cesium sulphate (1.27 g/cc) compared to that of phenol-extracted dsRNAs (1.42 g/cc) and by their resistance to hydrolysis by ribonuclease at low ionic strength. Using a variety of conditions during purification, no virus-like particles were found to be associated with the dsRNAs. In Northern analysis, L-, M-, and S-RNAs failed to cross-hybridize with the genomic dsRNAs of La France isometric virus. We report here the first description of non-encapsidated, vesicle-associated, dsRNA genetic elements in the common cultivated mushroom.