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  • 1
    Electronic Resource
    Electronic Resource
    Reaction of somaclonal variants of wheat to the take-all fungus (Gaeumannomyces graminis var. tritici) (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 43 (1994), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: More than 20000 wheat plants, derived from callus culture of immature wheat embryos were assessed for reaction to the take-all fungus (Gaeumannomyces graminis var. tritici) using a test-tube assay. Lines with less root and shoot blackening and more remaining green tissue than parental lines were identified in the SC3 generation. However these lines had more root and shoot blackening and less remaining green tissue in subsequent generations. The changes in reaction to the fungus may therefore have been epigenetic. The potential of this tissue culture derived material for breeding take-all resistant wheats is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1994.tb01602.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Control of take-all of wheat in the field with benzimidazole and triazole fungicides applied at seeding (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 35 (1986), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Control of take-all (Gaeumannomyces graminis var. tritici) of wheat, with fungicides applied at seeding, was investigated at three naturally infested field sites. Fungicides were applied with seed either as granules or as pellets at rates ranging from 1-5 to 140 kg a.i./ha. Treatment with benzimidazole and triazole fungicides resulted in lower disease severity on seminal roots, up to 100% fewer deadheads and more than 200% greater yields.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1986.tb01982.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The effects of various crops on the survival and carry-over of the wheat take-all fungus Gaeumannomyces graminis var. tritici (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 32 (1983), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The effects of various crops on the saprophytic survival and carry-over of Gaeumannomyces graminis var. tritici were studied in the glasshouse and field.In the glasshouse, survival of G. g. tritici was greater in unplanted pots than in pots planted with either cereals or non-cereals. In the field, fallow and various non-cereal crops reduced carryover of take-all but the disease was severe after wheat, barley and triticale. Grain yields were higher after fallow and non-cereals than after cereal crops.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1983.tb01303.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Glasshouse and field evaluation of benomyl and triadimefon applied at seeding to control take-all in wheat (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 35 (1986), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The effects of two fungicides, benomyl and triadimefon, applied at seeding, on the incidence and severity of take-all (Gaeumannomyces graminis var. tritici) of wheat were investigated in the glasshouse and in the field. In glasshouse studies with an artificially inoculated and naturally infested sandy loam, both fungicides caused significantly less disease, whereas in a field study with a clay soil and artificial inoculum, triadimefon caused significantly less disease. In the field, both fungicides were more effective when placed near the seed as granules or as pellets than when applied as seed treatments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1986.tb01981.x
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    In vitro selection for modified amino-acid pathways in Triticum species (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 114 (1995), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: In vitro selections were carried out to obtain mutant plants of Triticum aestivum L. and T. monococcum L. with modified amino-acid pathways. Embryogenic callus cultures were selected with the amino acids L-lysine plus L-threonine and the amino acid analogues S-2-aminoethyl-L-cysteine, 5-methyl-L-tryptophan and sulfometuron-methyl. A number of plants were regenerated from these selections and tested for resistance at the whole-plant level. Only plants from the selections with sulfometuron-methyl proved to be resistant and these were characterized biochemically. Three different mutant lines could be detected. The resistance of these plants could be associated with an altered enzyme. Acetolactate synthase was less sensitive to inhibition. A discussion of the suitability of the selection agents is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1995.tb01248.x
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Ultrastructure of primary sporidia of a wheat-bunt fungus,Tilletia caries, during ontogeny and mating (1979)
    Springer
    Protoplasma 99 (1979), S. 189-202 
    Details
    ISSN: 1615-6102
    Keywords: Mating ; Sporidia ; Tilletia ; Ultrastructure ; Wheat bunt
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Primary sporidia ofTilletia caries (DC.) Tul. are borne on denticles at the tips of promycelia. The promycelia contain many small vacuoles and mitochondria and numerous lipid bodies. As the primary sporidia develop, the promycelial cytoplasm passes into the nascent cells. Septa develop between the bases of mature sporidia and the tips of the denticles. Sporidia that abscise from the denticles commonly have prominent birth scars at their bases. The sporidia have very thin walls, few vacuoles, attenuated mitochondria, and numerous lipid bodies. Conjugation pegs are generally produced by both members of a conjugating pair of sporidia and there are bud scars where they emerge from the sporidia. The sporidial walls are apparently hydrolyzed during emergence of the pegs. Vesicles are sometimes present at the tips of the conjugation pegs and, before fusion, electron-dense accumulations are sometimes observed between the tips of adjacent pegs. The approaching conjugation pegs are precisely aligned prior to fusion, suggesting polar communication. The walls of the conjugation pegs fuse and then are hydrolyzed. Fused sporidia are relatively homogeneous in content. The nucleus in a sporidum is often close to the conjugation tube and occasionally is partly within the fusion tube.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01275734
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    Paper (German National Licenses)
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