Diseases of broad bean (Vicia faba L. major) and green pea (Pisum sativum L.) in Tasmania caused by subterranean clover red leaf virus

Abstract

A leaf-roll disease of broad bean, similar to that induced by bean leaf roll virus (BLRV) in Europe, is common in Tasmania. Subterranean clover red leaf virus (SCRLV) was transmitted to subterranean clover test seedlings by using its most efficient vector, Aulacorthum solani (Kalt.), from 84% of 204 randomly selected affected broad bean plants. The disease was reproduced in broad bean with SCRLV in controlled aphid transmission tests. Effects of infection on yield were severe, as further pod set was markedly reduced after symptoms of infection developed. There was some variation among cultivars in their response to infection. The virus occurred as commonly in green pea crops as in broad bean. In pea it caused a top yellowing, but most commercially grown pea cultivars had some tolerance. Subterranean clover stunt virus (SCSV) caused symptoms in broad bean and pea which were also similar to those induced by SCRLV. However, SCSV was rarely found infecting plants in Tasmanian pea and bean crops. BLRV, SCRLV and SCSV share many properties in common and with some other viruses.

Synthesis of a Complementary DNA Probe Specific for Detecting Subterranean Clover Red Leaf Virus in Plants and Aphids

“…3 for 20 h. accumulate to the concentration found in A. solani. This is consistent with the results of trials in which A. solani but not M. persicae transmits SCRLV (Johnstone, 1978;Jayasena & Randles, 1983).…”

“…Based on the persistence of its transmission by the aphid Aulacorthum solani (Kltb. ), the nature of its symptoms in legumes (Kellock, 1971;Johnstone, 1978;Ashby et al, 1979), the association of luteovirus-like particles with infection (Jayasena et al, 1981) and its serological relationship with other luteoviruses (Johnstone et al, 1982;Ashby & Kyriakou, 1982) SCRLV has been assigned to the luteovirus group (Matthews, 1982).…”

Advances in winter pulse pathology research in Australia

“…AMV, BWYV, BYMV, BLRV, CMV and PSbMV are considered ubiquitous in eastern Australia and are found every year in annual surveys. Soybean dwarf virus (SbDV) and Subterranean clover stunt virus (SCSV) are detected regularly in pulse crops in eastern Australia and have been the cause of serious yield losses in the past (Grylle and Butler 1959;Jayasena and Randles 1985;Johnstone 1978;Johnstone andRapley 1979, 1981;Schwinghamer et al 2009). All except BLRVand SbDVoccur commonly in pulses in WA (Cheng and Jones 1999;Latham and Jones 2001a;Jones 2001), where SCSV has never been found.…”

Luteovirus-like Particles Associated with Subterranean Clover Red Leaf Virus Infection

“…The virus has been transmitted persistently by its aphid vector, Aulacorthum solani ~Kltb.) to a number of leguminous plants (Kellock, 1971;Johnstone, 1978;Ashby et al, i979). Based on disease symptomatology and vector relationships, the virus has tentatively ~en assigned to the luteovirus group (Matthews, 1979).…”