Research output: Contribution to Journal/Magazine › Journal article
Research output: Contribution to Journal/Magazine › Journal article
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TY - JOUR
T1 - Invasion of rust (Puccinia lagenophorae) aecia on groundsel (Senecio vulgaris) by secondary pathogens: death of host.
AU - Hallett, S. G.
AU - Ayres, P. G.
PY - 1992
Y1 - 1992
N2 - Inoculation of groundsel (Senecio vulgaris) bearing aecia of the rust Puccinia lagenophorae with isolates of a range of other fungi isolated from naturally occurring rust lesions induced rapidly spreading necrosis and death of the host. In a controlled laboratory environment, the rate of symptom development varied with isolate and species. Death of 50% of plants occurred as soon as 18 d after inoculation with an isolate of Pythium intermedium and as late as 37 d after inoculation with an isolate of Fusarium avenaceum. Three of the eleven species tested caused neither necrosis nor death. In the field in autumn, isolates representing five species that killed groundsel in the laboratory again caused death of the host, though more slowly than in the laboratory, while a representative of the non-lethal group again had no visible effect on the host (...)
AB - Inoculation of groundsel (Senecio vulgaris) bearing aecia of the rust Puccinia lagenophorae with isolates of a range of other fungi isolated from naturally occurring rust lesions induced rapidly spreading necrosis and death of the host. In a controlled laboratory environment, the rate of symptom development varied with isolate and species. Death of 50% of plants occurred as soon as 18 d after inoculation with an isolate of Pythium intermedium and as late as 37 d after inoculation with an isolate of Fusarium avenaceum. Three of the eleven species tested caused neither necrosis nor death. In the field in autumn, isolates representing five species that killed groundsel in the laboratory again caused death of the host, though more slowly than in the laboratory, while a representative of the non-lethal group again had no visible effect on the host (...)
KW - Mortality
KW - Symptomatology
KW - Superinfection
KW - Pathogenicity
KW - Epidemiology
KW - Senecio vulgaris
KW - Compositae
KW - Dicotyledones
KW - Angiospermae
KW - Spermatophyta
KW - Plant pathogen
KW - Weed
KW - Puccinia
KW - Basidiomycetes
KW - Fungi
KW - Thallophyta
M3 - Journal article
VL - 96
SP - 142
EP - 144
JO - Mycological Research
JF - Mycological Research
IS - 2
ER -