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
Citations
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Journal ArticleDOI
Identification and characterization of isolates of Typhula causing snow rot of winter barley in the United Kingdom
B. Woodbridge,J.R. Coley-Smith +1 more
TL;DR: Morphological characteristics, pectic zymograms and interspecific pairings clearly differentiated them from American isolates of T. ishikariensis and T. idahoensis, and revealed that U.K. T. incarnata isolates had tetrapolar incompatibility with multiple alleles at each locus.
Journal Article
Molecular characterization of rhizoctonia solani ag-7 causing root rot on cotton crop in india
TL;DR: Based on morphological characteristics, hyphal fusion compatibility and sequence analysis, 98% of the isolates collected belonged to AG-7 and 2% ofThe isolates were AG-4, which is proven to be the most common pathogenic fungal strains on cotton crop.
Journal ArticleDOI
Population dynamics of Rhizoctonia, Oculimacula, and Microdochium species in soil, roots, and stems of English wheat crops
Matthew Brown,James W. Woodhall,Linda K. Nielsen,Daniel Tomlinson,Arifa Farooqi,Rumiana V. Ray +5 more
Dissertation
Transformation of Rhizoctonia solani
TL;DR: The aim of this study was to develop a genetic transformation system for the plant pathogenic fungus Rhizoctonia solani to allow for gene exchange, epidemiology, and to use techniques such as gene disruption or gene silencing to investigate the role of fungal enzymes in pathogenesis.
Rhizoctonia disease of tulip : characterization and dynamics of the pathogens
TL;DR: Bare patches due to natural and artificial infestation declined during successive croppings of bulbs, whereas bulb rot tended to increase, and temporal niche differentiation is one explanation for the decline phenomenon.
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.