Journal ArticleDOI
Pectic zymograms and taxonomy and pathogenicity of the Ceratobasidiaceae
TLDR
The pectic enzymes of 140 isolates of Rhizoctonia-1ike fungi from the Western Australian grainbelt were examined by electrophoresis and found to fall into 11 distinct zymogram groups (ZG).Abstract:
The pectic enzymes of 140 isolates of Rhizoctonia-1ike fungi from the Western Australian grainbelt were examined by electrophoresis and found to fall into 11 distinct zymogram groups (ZG). Isolates within a ZG had a similar cultural and morphological appearance and were either all multinucleate or all binucleate. Some isolates from most ZGs sporulated when transferred from potato-dextrose-marmite agar to water agar. Isolates from within a ZG had the same teleomorph. Pathogenicity of the isolates was tested against wheat and lupins. All isolates from within a ZG were consistent in the type of lesions they produced and in their virulence towards these hosts. Rhizoctonia patch disease of cereals and lupins appears to be caused by isolates from ZG 1 and ZG 2. Severe reddish-brown and brown hypocotyl rots of lupins were caused by ZG 3 and ZG 4 isolates respectively. Five Ceratobasidium groups (CZG), one Waitea group (WZG) and ZG 5 had weak to nil pathogenicity towards wheat and lupins.read more
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Dissertation
Studies on seedling mortality associated with Eucalyptus regnans forest regeneration in southern Tasmania
TL;DR: Although fungi were found to be associated with the majority of dying seedlings from the field, their involvement in seedling pathology was unclear and availability of soil moisture appeared to be the main factor limiting seedling establishment in the field.
Pectic zymogram variation and morphological identification of Aspergillus species
TL;DR: One hundred and three Aspergillus isolates belonging to 12 species including A. niger var.
Dissertation
The potential for the occurrence of Rhizoctonia root rot in cereal crop production areas of Montana
TL;DR: In inoculated field plots, it was determined that the disease can cause root rot and yield losses up to 23% and the use of ELISA as a diagnostic tool was useful in detecting R. solani in infected plants more than five weeks after planting.
Journal ArticleDOI
Identification and Distribution of Fungal Pathogens Associated with Seedling Blight of Rice in the Southern United States
TL;DR: In this article , the authors conducted a survey in five southern rice-producing states of Arkansas, Louisiana, Mississippi, Missouri and Texas during the 2018 and 2019 cropping seasons to determine the distribution and pathogenicity of fungal pathogens associated with seedling blight in rice.
References
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Journal ArticleDOI
The genetics and pathology of rhizoctonia solani
TL;DR: The objective of this paper is to review the genetical and pathological research on Rhizoctonia solani Kuhn from 1965 to the present and to discuss each anastomosis group separately.
Journal ArticleDOI
A selective medium for the quantitative determination of Rhizoctonia solani in soil.
W. h. Ko,Frances K. Hora +1 more
Journal ArticleDOI
Safranin O as a rapid nuclear stain for fungi.
TL;DR: Maximum germination of both basidiospores and oidia was obtained on agar media containing cornmeal and malt extract with malt-extract-liquid medium, apparently providing a stimulatory substance in sufficient quantity to yield maximum percent germination.