Manganese-oxidizing ability of isolates of the take-all fungus is correlated with virulence

Two successive experiments described here show that the Mn-oxidizing ability of isolates of the take-all fungus Gaeumannomyces graminis var. tritici is positively correlated with the isolate virulence. Isolates of G. graminis var. tritici were screened for virulence on wheat in soil culture pot test...

Full description

Saved in:
Bibliographic Details
Published in:Biology and fertility of soils 1996-05, Vol.22 (3), p.272-273
Main Authors: Pedler, J.F, Webb, M.J, Buchhorn, S.C, Graham, R.D
Format: Article
Language:English
Subjects:
attenuation
Biological and medical sciences
cell culture
correlation
epidemiology
Fundamental and applied biological sciences. Psychology
fungal diseases of plants
Fungal plant pathogens
Gaeumannomyces graminis var. tritici
manganese
oxidation
Pathology, epidemiology, host-fungus relationships. Damages, economic importance
Phytopathology. Animal pests. Plant and forest protection
strain differences
strains
subculturing
Triticum
virulence
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Two successive experiments described here show that the Mn-oxidizing ability of isolates of the take-all fungus Gaeumannomyces graminis var. tritici is positively correlated with the isolate virulence. Isolates of G. graminis var. tritici were screened for virulence on wheat in soil culture pot tests and visually scored for Mn-oxidizing capacity on agar plates. A comparison between experiments showed that the Mn-oxidizing ability of an isolate may be attenuated, as is virulence, with subculturing. Using a solution culture system, we calculated the rate of (oxidation of Mn2+ by a virulent isolate, Ggt 500, as 4 nmol g-1 (dry weight hyphae) h-1. The significance of these results to the epidemiology of the take-all disease of wheat is discussed.
ISSN:0178-2762
1432-0789
DOI:10.1007/BF00382524