A Symptomless Carrier of Disease in Helminthosporium victoriae
نویسندگان
چکیده
منابع مشابه
Viruses of Helminthosporium (Cochlioblus) victoriae.
The enigma of the transmissible disease of Helminthosporium victoriae has almost been resolved. Diseased isolates are doubly infected with two distinct viruses, the victorivirus Helminthosporium victoriae virus 190S and the chrysovirus HvV145S. Mixed infection, however, is not required for disease development. DNA transformation experiments and transfection assays using purified HvV190S virions...
متن کاملElectron Cryo-Microscopy Studies of Helminthosporium victoriae Virus 190S.
The parasitic nature of viruses is a source of intense interest owing to the wide variety of potential hosts, which include humans, livestock, fungi, agricultural crops, as well as many others [1]. Viruses are differentiated by variations in properties such as size, capsid morphology, genomic composition, replication strategy, and host target [1, 2]. The family Totiviridae of dsRNA viruses is c...
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In in vitro reactions, the Helminthosporium victoriae 190S virus-associated RNA polymerase catalysed the synthesis and release of full-length ssRNA transcripts of genomic dsRNA. The transcriptase activity, which was dependent on virus concentration, required all four nucleoside triphosphates and magnesium ions. In reaction mixtures containing [3 H]UTP, 99-0 ~ to 99.5 ~o of the incorporated labe...
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Oat seeds of cultivars susceptible and resistant to Helminthosporium victoriae were held for various times in pathogen-produced, host-specific toxin solutions; control seeds were in water. Seeds were then washed thoroughly and incubated on moist paper, or dried and stored for 2-3 weeks before germination was attempted. In both cases, germination of susceptible seeds was prevented by previous ex...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1968
ISSN: 0022-1287
DOI: 10.1099/00221287-50-3-361