Serological relationships among beet western yellows, barley yellow dwarf, and soybean dwarf viruses

Reference Report for CAIN789002455

Title:	Serological relationships among beet western yellows, barley yellow dwarf, and soybean dwarf viruses
Authors:	Duffus, J.E.
Source:	Phytopath. 1977, 67(10):1197-1201
Abstract:	The potential genetic vulnerability of substantial numbers of US soybean [Glycine max] cultivars to beet western yellows virus (BWYV) and the similarity of BWYV to soybean dwarf virus (SDV), a virus capable of inducing severe losses of soybean in Japan, led to serological studies between SDV and BWYV and other closely related viruses. Two antisera (from Japan) prepared against the dwarfing strain (SDV-DS) and the yellowing strain of SDV (SDV-Y) were tested against BWYV, turnip yellows virus (TuYV), beet mild yellowing virus (BMYV) and 3 isolates of barley yellow dwarf virus (BYDV). The virus-antiserum mixtures were subjected to density-gradient centrifugation and analyzed photometrically and by virus neutralization. Antiserum prepared against the SDV-Y and SDV-DS isolates of the SDV from Japan reacted with BWYV isolates from the USA and Europe, with BMYV from Europe, with TuYV from Europe and with the RPV isolate of BYDV. The SDV antisera did not react with the MAV and PAV isolates of BYDV in a manner identical to the reactions of BWYV, TuYV and BMYV antiserum with these 2 BYDV isolates. Neither saline nor antiserum to the beet yellows virus, nor healthy shepherd's purse reacted with any of the virus isolates. Reciprocal tests with the SDV were not made.

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