scholarly journals Effects of break crops, and of wheat volunteers growing in break crops or in set‐aside or conservation covers, all following crops of winter wheat, on the development of take‐all ( Gaeumannomyces graminis var. tritici ) in succeeding crops of winter wheat

2014 ◽  
Vol 165 (3) ◽  
pp. 340-363 ◽  
Author(s):  
J.F. Jenkyn ◽  
R.J. Gutteridge ◽  
R.P. White
Keyword(s):  
Winter Wheat ◽  
Gaeumannomyces Graminis ◽  
Gaeumannomyces Graminis Var Tritici ◽  
Take All

scholarly journals Influence of forecrop and chemical seed treatment on the occurrence of take-all (Gaeumannomyces graminis var. tritici) on winter wheat

2013 ◽  
Vol 55 (1) ◽  
pp. 359-365
Author(s):  
Zbigniew Weber
Keyword(s):  
Winter Wheat ◽  
Oilseed Rape ◽  
Seed Treatment ◽  
Growth Stage ◽  
Gaeumannomyces Graminis ◽  
Field Plot ◽  
Gaeumannomyces Graminis Var Tritici ◽  
Take All

The work was done in years 1998/1999 - 2000/2001 on plantations and field plot experiments. Aim of the work was evaluation of take-all occurrence on winter wheat in milk-wax growth stage in dependence on forecrop (oilseed rape, wheat or barley) as well as seed treatment with Latitude 125 FS when wheat was planted on fields after wheat or barley. Percentage of infected plants when seeds were not treated with Latitude 125 FS varied from 82-100 on fields after wheat or barley, and 54-69 on fields after oilseed rape. In treatments with wheat grown after wheat or barley the percentage of infected plants amounted 20-100 when seeds were not treated with Latitude 125 FS and 13-86 when seeds were treated with Latitude 125 FS. Mean degree of infection was low when percentage of infected plants was low and high when percentage of infected plants was high.

Effects of take-all (Gaeumannomyces graminis var. tritici) on crop N uptake and residual mineral N in soil at harvest of winter wheat

2011 ◽  
Vol 350 (1-2) ◽  
pp. 253-260 ◽  
Author(s):  
Andrew J. Macdonald ◽  
Richard J. Gutteridge
Keyword(s):  
Winter Wheat ◽  
N Uptake ◽  
Gaeumannomyces Graminis ◽  
Mineral N ◽  
Crop N Uptake ◽  
Gaeumannomyces Graminis Var Tritici ◽  
Take All

scholarly journals Explaining variation in the effects of take-all (Gaeumannomyces graminis var. tritici) on nitrogen and water uptake by winter wheat

2005 ◽  
Vol 54 (4) ◽  
pp. 491-501 ◽  
Author(s):  
C. Pillinger ◽  
N. Paveley ◽  
M. J. Foulkes ◽  
J. Spink
Keyword(s):  
Winter Wheat ◽  
Water Uptake ◽  
Gaeumannomyces Graminis ◽  
Gaeumannomyces Graminis Var Tritici ◽  
Take All

Effects of summer fallow management on take-all of winter wheat caused by Gaeumannomyces graminis var. tritici

2005 ◽  
Vol 112 (2) ◽  
pp. 167-181 ◽  
Author(s):  
S. Ennaïfar ◽  
P. Lucas ◽  
J.-M. Meynard ◽  
D. Makowski
Keyword(s):  
Winter Wheat ◽  
Gaeumannomyces Graminis ◽  
Fallow Management ◽  
Summer Fallow ◽  
Gaeumannomyces Graminis Var Tritici ◽  
Take All

scholarly journals Isolation, Characterization, and Sensitivity to 2,4-Diacetylphloroglucinol of Isolates of Phialophora spp. from Washington Wheat Fields

2010 ◽  
Vol 100 (5) ◽  
pp. 404-414 ◽  
Author(s):  
Youn-Sig Kwak ◽  
Peter A. H. M. Bakker ◽  
Debora C. M. Glandorf ◽  
Jennifer T. Rice ◽  
Timothy C. Paulitz ◽  
...  
Keyword(s):  
Sequence Comparison ◽  
Phylogenetic Trees ◽  
Washington State ◽  
Gaeumannomyces Graminis ◽  
Wild Oat ◽  
Genetic Characteristics ◽  
Oat Cultivars ◽  
Eastern Washington ◽  
Gaeumannomyces Graminis Var Tritici ◽  
Take All

Dark pigmented fungi of the Gaeumannomyces–Phialophora complex were isolated from the roots of wheat grown in fields in eastern Washington State. These fungi were identified as Phialophora spp. on the basis of morphological and genetic characteristics. The isolates produced lobed hyphopodia on wheat coleoptiles, phialides, and hyaline phialospores. Sequence comparison of internal transcribed spacer regions indicated that the Phialophora isolates were clearly separated from other Gaeumannomyces spp. Primers AV1 and AV3 amplified 1.3-kb portions of an avenacinase-like gene in the Phialophora isolates. Phylogenetic trees of the avenacinase-like gene in the Phialophora spp. also clearly separated them from other Gaeumannomyces spp. The Phialophora isolates were moderately virulent on wheat and barley and produced confined black lesions on the roots of wild oat and two oat cultivars. Among isolates tested for their sensitivity to 2,4-diacetylphloroglucinol (2,4-DAPG), the 90% effective dose values were 11.9 to 48.2 μg ml–1. A representative Phialophora isolate reduced the severity of take-all on wheat caused by two different isolates of Gaeumannomyces graminis var. tritici. To our knowledge, this study provides the first report of an avenacinase-like gene in Phialophora spp. and demonstrated that the fungus is significantly less sensitive to 2,4-DAPG than G. graminis var. tritici.

Gaeumannomyces graminis var. tritici. [Descriptions of Fungi and Bacteria].

1973 ◽  
Author(s):  
J. Walker
Keyword(s):  
Geographical Distribution ◽  
Root Hairs ◽  
Seed Transmission ◽  
Gaeumannomyces Graminis ◽  
Root Infection ◽  
Root Death ◽  
Meristematic Region ◽  
Germ Tubes ◽  
Gaeumannomyces Graminis Var Tritici ◽  
Take All

Abstract A description is provided for Gaeumannomyces graminis var. tritici. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Gramineae, especially Triticum, Hordeum, Secale, Agropyron and several other grass genera and, more rarely, Sorghum and Zea; also recorded from the roots of plants in other families. DISEASE: Take-all of cereals and grasses (also referred to as deadheads or whiteheads, pietin and pied noir (France), Schwarzbeinigkeit and Ophiobolus Fusskrankheit (Germany), Ophiobolusvoetziekt (Netherlands) and others). Root infection is favoured by soil temperature from 12-20°C (Butler, 1961). Ascospore germ tubes penetrate root hairs and the epidermis in the meristematic region (Weste, 1972) leading to plugging of xylem and root death. GEOGRAPHICAL DISTRIBUTION: (CMI Map 334, ed. 3, 1972). Widespread, especially in temperate zones. Africa; Asia (India, Iran, Japan, USSR): Australasia and Oceania; Europe; North America (Canada, USA); South America (Argentina, Brazil, Chile, Colombia, Uruguay). TRANSMISSION: In soil on infected organic fragments, as runner hyphae on roots of cereals and grasses and, under special conditions, by ascospores. Seed transmission very doubtful (47, 3058).

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