منابع مشابه
Prevalence and Distribution of Common Barberry, the Alternate Host of Puccinia graminis, in Minnesota
P. D. Peterson, Clemson University, Pee Dee Research and Education Center, Florence, SC 29506; K. J. Leonard, Department of Plant Pathology, University of Minnesota, St. Paul 55108; J. D. Miller, USDA-ARS Northern Crop Science Laboratory, Fargo, ND 58105 (retired); R. J. Laudon, Minnesota Department of Agriculture, St. Paul 55107 (retired); and T. B. Sutton, Department of Plant Pathology, North...
متن کاملThe Nature of Cold - induced Dormancy in Urediospores of Puccinia graminis tritici Received for publication
When air-dry urediospores of the wheat stem rust, Puccinia graminis f. sp. tritici, are exposed to temperatures below freezing, their germinability is markedly reduced, even after prolonged thawing at room temperature. Germinability is fully restored by a brief heat-shock or by vapor phase hydration. We have found that this "cold dormancy" cannot be reversed once the spores contact liquid water...
متن کاملCarbohydrate and Lipid Metabolism During Germination of Uredospores of Puccinia graminis tritici.
Uredospores of Puccinia graminis (Pers.) tritici (Eriks. and Henn.) were uniformly labeled with (14)C by permitting the host (Triticum aestivum L.) to carry out photosynthesis in (14)CO(2) during the process of spore production by the obligate parasite. The use of (14)C labeled spores provided advantages in a study of the utilization of endogenous substrates at frequent intervals with small amo...
متن کاملStem rust of small grains and grasses caused by Puccinia graminis.
UNLABELLED SUMMARY Stem rust has been a serious disease of wheat, barley, oat and rye, as well as various important grasses including timothy, tall fescue and perennial ryegrass. The stem rust fungus, Puccinia graminis, is functionally an obligate biotroph. Although the fungus can be cultured with difficulty on artificial media, cultures grow slowly and upon subculturing they develop abnormal p...
متن کاملGenetics of resistance to race TTKSK of Puccinia graminis f. sp. tritici in Triticum monococcum.
Race TTKSK (or Ug99) of Puccinia graminis f. sp. tritici possesses virulence to several stem rust resistance genes commonly present in wheat cultivars grown worldwide. New variants detected in the race TTKSK lineage further broadened the virulence spectrum. The identification of sources of genetic resistance to race TTKSK and its relatives is necessary to enable the development and deployment o...
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ژورنال
عنوان ژورنال: Transactions of the Botanical Society of Edinburgh
سال: 1908
ISSN: 0374-6607
DOI: 10.1080/03746600809469130