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Host range and properties of grapevine fanleaf and grapevine yellow mosaic viruses
Author(s) -
DIAS H. F.
Publication year - 1963
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1963.tb03677.x
Subject(s) - biology , chenopodium , nepovirus , virology , host (biology) , virus , chenopodium quinoa , plant virus , botany , horticulture , weed , ecology
SUMMARY Sap‐transmissible viruses were obtained from grapevines affected by fanleaf, yellow mosaic, distorting mosaic, witches' broom or fasciation diseases. Virus isolates from American, Australian, French and Portuguese grapevines did not differ with country of origin but those from any one country varied in virulence. Herbaceous hosts of isolates originally obtained from grapevines with fanleaf or with yellow mosaic included thirty‐two species in five plant families; yellow mosaic isolates usually caused distinctive symptoms in systemically infected leaves of Chenopodium amaranticolor , but in many other hosts could not be distinguished from fanleaf isolates. Yellow mosaic and fanleaf diseases were each reproduced by transmitting the respective isolates back to grapevine from C. amaranticolor. Grapevine fanleaf and grapevine yellow mosaic viruses were both transmitted through seed of C. amaranticolor ; both were precipitated without inactivation by ethanol, by acetone, by ammonium sulphate and at pH 5. Preparations of each, partially purified from systemically infected leaves of Nicotiana clevelandii , contained polyhedral particles about 30 mp in diameter. Phenol‐disrupted virus was 1–5% as infective as its parent virus suspensions.