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You searched for: Subject Puccinia graminis Remove constraint Subject: Puccinia graminis Subject plant pathogenic fungi Remove constraint Subject: plant pathogenic fungi
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1. Spread of a highly virulent race of Puccinia graminis tritici in Eastern Africa: challenges and opportunities

Author:
Singh, R.P.; Kinyua, M.G.; Wanyera, R.; Njau, P.; Jin, Y.; Huerta-Espino, J.
Source:
Wheat production in stressed environments : proceedings of the 7th International Wheat Conference, 27 November - 2 December 2005, Mar del Plata, Argentina / edited by H.T. Buck, J.E. Nisi, and N. Salomón pp. -
Subject:
rust diseases; cultivars; plant breeding; genetic resistance; Puccinia graminis; wheat; Triticum aestivum; plant pathogenic fungi; disease resistance; progeny testing; genetic variation; pathotypes; virulence; Kenya
Handle:
10113/7053

2. A beta-1,3-D-endo-mannanase from culture filtrates of the hyperparasites Verticillium lecanii and Aphanocladium album that specifically lyses the germ pore plug from uredospores of Puccinia graminis f.sp. tritici

Author:
Langen, G.; Beissmann, B.; Reisener, H.J.; Kogel, K.
Source:
Canadian journal of botany 1992 v.70 no.4 pp. 853-860
ISSN:
0008-4026
Subject:
hyperparasitism; enzymes; host-parasite relationships; Puccinia graminis; plant pathogenic fungi; spore germination; culture filtrates; Lecanicillium lecanii; biological control
DOI:
10.1139/b92-109

3. An ultrastructural pachytene karyotype for Puccinia graminis f.sp. tritici

Author:
Boehm, E.W.A.; Wenstrom, J.C.; McLaughlin, D.J.; Szabo, L.J.; Roelfs, A.P.; Bushnell, W.R.
Source:
Canadian journal of botany 1992 v.70 no.2 pp. 401-413
ISSN:
0008-4026
Subject:
Triticum aestivum; Puccinia graminis; karyotyping; pathotypes; plant pathogenic fungi; spores; plant anatomy
DOI:
10.1139/b92-054

4. Use of virulence and length variability within the rDNA repeat unit to distinguish isolates of Puccinia graminis f. sp. tritici race QCC

Author:
Fox, S.L.; Harder, D.E.; Kim, W.K.
Source:
Canadian journal of plant pathology 1995 v.17 no.3 pp. 197-204
ISSN:
0706-0661
Subject:
Triticum aestivum; Puccinia graminis; races; plant pathogenic fungi; virulence; genetic variation; ribosomal RNA
Abstract:
... Eleven isolates of race QCC and single isolates of races TPM, QFC, and MCC of Puccinia graminis f. sp. tritici were obtained from disease survey collections made across Canada between 1957 and 1991. These isolates were compared based on the disease reactions on seedlings of 24 lines of Triticum aestivum containing different stem rust resistance genes. Comparisons also were made based on length var ...
DOI:
10.1080/07060669509500681

5. AC Certa spring triticale

Author:
McLeod, J.G.; Pfeiffer, W.H.; DePauw, R.M.; Clarke, J.M.
Source:
Canadian journal of plant science 1996 v.76 no.2 pp. 333-335
ISSN:
0008-4220
Subject:
cultivars; Tilletia tritici; Puccinia graminis; Bipolaris; spring; plant pathogenic fungi; disease resistance; Tilletia laevis; triticale; Puccinia recondita; grain sprouting; Bipolaris sorokiniana; Alberta; Manitoba; Saskatchewan
DOI:
10.4141/cjps96-058

6. Stem rusts on wheat and barley in Canada, and on oat in Canada and Mexico in 1994

Author:
Harder, D.E.; Dunsmore, K.M.; Wilson, R.G.; Salmeron, J.J.
Source:
Canadian journal of plant pathology 1996 v.18 no.4 pp. 379-383
ISSN:
0706-0661
Subject:
rust diseases; cultivars; races; Hordeum vulgare; disease prevalence; Puccinia graminis; varietal resistance; Triticum aestivum; Avena sativa; plant pathogenic fungi; Hordeum jubatum; genes; disease resistance; incidence; disease surveys; virulence; infection; Canada; Mexico
Abstract:
... In 1994, stem rusts of wheat and barley [Puccinia graminis f. sp. tritici] and of oat [P. graminis f. sp. avenae] were light in eastern Canada, and in western Canada were confined mainly to the Red River Valley of Manitoba. Maximum infections of 10% and 5%, respectively, that developed in lines of susceptible wheat in nurseries and in commercial barley fields in Manitoba were too low to cause sign ...
DOI:
10.1080/07060669609500592

7. The transfer of stem rust resistance from the Ethiopian durum wheat St. 464 to common wheat

Author:
Knott, D.R.
Source:
Canadian journal of plant science 1996 v.76 no.2 pp. 317-319
ISSN:
0008-4220
Subject:
Triticum aestivum; Triticum turgidum; Puccinia graminis; plant pathogenic fungi; disease resistance; rust diseases; plant breeding; gene transfer; cultivars; Ethiopia; Canada
DOI:
10.4141/cjps96-054

8. AC Elsa hard red spring wheat

Author:
Clarke, J.M.; DePauw, R.M.; McCaig, T.N.; Fernandez, M.R.; Knox, R.E.; McLeod, J.G.
Source:
Canadian journal of plant science 1997 v.77 no.4 pp. 661-663
ISSN:
0008-4220
Subject:
seeds; Tilletia tritici; Ustilago segetum var. tritici; Puccinia graminis; spring; Puccinia recondita; Triticum aestivum; disease resistance; Tilletia laevis; plant pathogenic fungi; high-yielding varieties; protein content; Canada
DOI:
10.4141/P97-002

9. Comparison of virulence and isozyme phenotypes of Pgt-QCCJ and Great Plains races of Puccinia graminis f.sp. tritici

Author:
Roelfs, A.P.; McCallum, B.; McVey, D.V.; Groth, J.V.
Source:
Phytopathology 1997 v.87 no.9 pp. 910-914
ISSN:
0031-949X
Subject:
phenotype; Hordeum vulgare; Puccinia graminis; Triticum aestivum; plant pathogenic fungi; genetic techniques and protocols; genes; genetic variation; pathotypes; isozymes; virulence; protein composition
Abstract:
... Stem rust race Pgt-QCCJ was first found in the Great Plains of the United States in 1989, collected primarily from barley. This race became a major part of the Puccinia graminis f. sp. tritici population, even though it is virulent to only a few hard red winter wheat cultivars in the central Great Plains and to barley in the northern Great Plains. It threatens barley production in the northern Gre ...
DOI:
10.1094/PHYTO.1997.87.9.910
PubMed:
18945061

10. Differential induction of lipoxygenase isoforms in wheat upon treatment with rust fungus elicitor, chitin oligosaccharides, chitosan, and methyl jasmonate

Author:
Bohland, C.; Balkenhohl, T.; Loers, G.; Feussner, I.; Grambow, H.J.
Source:
Plant physiology 1997 v.114 no.2 pp. 679-685
ISSN:
0032-0889
Subject:
protein synthesis; dose response; chitosan; seedlings; jasmonic acid; linoleate 13S-lipoxygenase; Puccinia graminis; Triticum aestivum; leaves; plant pathogenic fungi; oligosaccharides; chitin; enzyme activity; isozymes; protein composition
Abstract:
... A glycopeptide elicitor prepared from germ tubes of the rust fungus Puccinia graminis Pers. f. sp. tritici Erikss. & Henn (Pgt),as well as chitin oligosaccharides, chitosan, and methyl jasmonate (MJ) stimulated lipoxygenase (LOX) activity (E.C. 1.13.11.12) in wheat (Triticum aestivum) leaves. Immunoblot analysis using anti-LOX antibodies revealed the induction of 92- and 103-kD LOX species after P ...

11. The inheritance of adult plant resistance to stem rust derived from wheat cultivars Bonza and Chris

Author:
Knot, D.R.
Source:
Canadian journal of plant science 1997 v.77 no.2 pp. 289-292
ISSN:
0008-4220
Subject:
backcrossing; cultivars; plant breeding; Puccinia graminis; pathogenicity; Triticum aestivum; disease resistance; plant pathogenic fungi; recessive genes; genetic variation; inheritance (genetics)
DOI:
10.4141/P96-085

12. Determinants of density- and frequency-dependent fitness in competing plant pathogens

Author:
Newton, M.R.; Kinkel, L.L.; Leonard, K.J.
Source:
Phytopathology 1998 v.88 no.1 pp. 45-51
ISSN:
0031-949X
Subject:
mathematical models; disease models; sporulation; equations; strain differences; Puccinia graminis; virulence; inoculum density; Triticum aestivum; plant pathogenic fungi; pathotypes; life cycle (organisms)
Abstract:
... Using mathematical models, we investigated how infection and sporulation characteristics of competing plant pathogens determine the density and frequency dependence of relative fitness. Two models, one for the infection stage and one for the sporulation stage of a pathogen's life cycle, describe reproductive output of pathogen strains in mixture as a function of the strains' population densities. ...
DOI:
10.1094/PHYTO.1998.88.1.45
PubMed:
18944998

13. Genetics of stem rust resistance in wheat cvs. Pasqua and AC Taber

Author:
Liu, J.Q.; Kolmer, J.A.
Source:
Phytopathology 1998 v.88 no.2 pp. 171-176
ISSN:
0031-949X
Subject:
Triticum aestivum; Puccinia graminis; plant pathogenic fungi; pathogenicity; stems; rust diseases; disease resistance; pathotypes; cultivars; genetic variation; Canada
Abstract:
... Canadian wheat cvs. Pasqua and AC Taber were examined genetically to determine the number and identity of stem rust resistance genes in both. The two cultivars were crossed with stem rust susceptible line RL6071, and sets of random F6 lines were developed from each cross. The F6 lines, parents, and tester lines with single stem rust resistance genes were grown in a field rust nursery, inoculated w ...
DOI:
10.1094/PHYTO.1998.88.2.171
PubMed:
18944987

14. A temperature-based model for latent-period duration in stem rust of perennial ryegrass and tall fescue

Author:
Pfender, W.F.
Source:
Phytopathology 2001 v.91 no.1 pp. 111-116
ISSN:
0031-949X
Subject:
rust diseases; Festuca arundinacea; Lolium perenne; Puccinia graminis; disease control; pathogenicity; duration; plant pathogenic fungi; temperature
Abstract:
... A temperature-response curve for latent-period duration in stem rust (caused by Puccinia graminis subsp. graminicola) on perennial ryegrass and tall fescue was developed from constant-temperature experiments with inoculated plants and evaluated in field experiments. Under constant-temperature conditions, time from infection to 50% of pustules erupted for perennial ryegrass ranged from 54 days at 3 ...
Handle:
10113/29355
DOI:
10.1094/PHYTO.2001.91.1.111
PubMed:
18944285

15. Genetically engineered stem rust resistance in barley using the Rpg1 gene

Author:
Horvath, H.; Rostoks, N.; Brueggeman, R.; Steffenson, B.; Von Wettstein, D.; Kleinhofs, A.
Source:
Proceedings of the National Academy of Sciences of the United States of America 2003 v.100 no.1 pp. 364-369
ISSN:
0027-8424
Subject:
Hordeum vulgare; barley; disease resistance; rust diseases; Puccinia graminis; plant pathogenic fungi; genes; genetic transformation; transgenic plants; gene transfer; defense mechanisms; gene expression; messenger RNA; hypersensitive response
Abstract:
... The stem-rust-susceptible barley cv. Golden Promise was transformed by Agrobacterium-mediated transformation of immature zygotic embryos with the Rpg1 genomic clone of cv. Morex containing a 520-bp 5' promoter region, 4,919-bp gene region, and 547-bp 3' nontranscribed sequence. Representatives of 42 transgenic barley lines obtained were characterized for their seedling infection response to pathot ...
DOI:
10.1073/pnas.0136911100
PubMed:
12509512
PubMed Central:
PMC140979

16. Identification and analysis of expressed resistance gene sequences in wheat

Author:
Dilbirligi, M.; Gill, K.S.
Source:
Plant molecular biology 2003 v.53 no.6 pp. 771-787
ISSN:
0167-4412
Subject:
rust diseases; wheat; Puccinia graminis; plant pests; genes; Triticum aestivum; disease resistance; plant pathogenic fungi; genomics; Puccinia recondita; pest resistance; physical chromosome mapping
Abstract:
... Forty-eight resistance (R) genes conferring resistance to various types of pests have been cloned from 12 plant species. Irrespective of the host or the pest type, most R genes share a strong protein sequence similarity especially for domains and motifs. The objective of this study was to identify expressed R genes of wheat, the fraction of which is expected to be very low in the genome. Using mod ...
PubMed:
15082925

17. Prediction of stem rust infection favorability, by means of degree-hour wetness duration, for perennial ryegrass seed crops

Author:
Pfender, W.F.
Source:
Phytopathology 2003 v.93 no.4 pp. 467-477
ISSN:
0031-949X
Subject:
Lolium perenne; rust diseases; Puccinia graminis; plant pathogenic fungi; pathogenicity; seeds; infection; prediction; disease models; inoculum density; fungal spores; spore germination; climatic factors; relative humidity; temperature; diurnal variation; Oregon
Abstract:
... A weather-based infection model for stem rust of perennial ryegrass seed crops was developed and tested using data from inoculated bioassay plants in a field environment with monitored weather. The model describes favorability of daily weather as a proportion (0.0 to 1.0) of the maximum possible infection level set by host and inoculum. Moisture duration and temperature are combined in one factor ...
Handle:
10113/13543
DOI:
10.1094/PHYTO.2003.93.4.467
PubMed:
18944362

18. Effect of autumn planting date and stand age on severity of stem rust in seed crops of perennial ryegrass

Author:
Pfender, W.F.
Source:
Plant disease 2004 v.88 no.9 pp. 1017-1020
ISSN:
0191-2917
Subject:
planting date; grasses; rust diseases; cultivars; seed crop production; disease course; cultural control; Lolium perenne; Puccinia graminis; seasonal variation; plant pathogenic fungi; plant age; Oregon
Abstract:
... Perennial ryegrass (Lolium perenne) grown for seed is planted in autumn for July harvest (first-year seed crop), then kept in production for subsequent yearly harvests. Plots of first-year perennial ryegrass planted in early November had only 3% as much stem rust in June as plots planted in mid-September. In other plots where fungicides were used to prevent rust development, seed yield from the No ...
Handle:
10113/8399
DOI:
10.1094/PDIS.2004.88.9.1017

19. Physiologic specialization of Puccinia graminis on wheat, barley, and oat in Canada in 2001

Author:
Fetch, T.G. Jr.; Dunsmore, K.M.
Source:
Canadian journal of plant pathology 2004 v.26 no.2 pp. 148-155
ISSN:
0706-0661
Subject:
Triticum aestivum; wheat; Hordeum vulgare; Avena sativa; oats; rust diseases; Puccinia graminis; plant pathogenic fungi; virulence; phenotype; pathotypes; cultivars; Manitoba; Saskatchewan; Ontario; British Columbia
Abstract:
... Stem rust is an important disease of cereal crops that is primarily controlled in Canada through cultivar resistance. Annual stem rust surveys are conducted to provide early detection of novel races with virulence to currently grown cultivars and to identify changes in virulence frequency in the pathogen population. Stem rust samples were collected in Manitoba, eastern Saskatchewan, Ontario, and B ...
DOI:
10.1080/07060660409507126

20. Registration of 'Applaud' perennial ryegrass

Author:
Bonos, S.A.; Hignight, K.; Stapp, R.; Smith, D.; Meyer, W.A.; Funk, C.R.
Source:
Crop science 2004 v.44 no.1 pp. 350-351
ISSN:
0011-183X
Subject:
Lolium perenne; turf grasses; cultivars; laws and regulations; germplasm releases; pest resistance; plant pathogenic fungi; Puccinia graminis; Drechslera; Sclerotinia homoeocarpa; lawns and turf; Georgia

21. Resistance of Tangmai 4 wheat to powdery mildew, stem rust, leaf rust, and stripe rust and its chromosome composition

Author:
Li, H.J.; Conner, R.L.; McCallum, B.D.; Chen, X.M.; Su, H.; Wen, Z.Y.; Chen, Q.; Jia, X.
Source:
Canadian journal of plant science 2004 v.84 no.4 pp. 1015-1023
ISSN:
0008-4220
Subject:
cultivars; genetic resistance; fungal diseases of plants; Puccinia graminis; Blumeria graminis f. sp. tritici; wheat; pathogenicity; Triticum aestivum; plant pathogenic fungi; disease resistance; genes; genetic variation; chromosome translocation; Puccinia recondita; Puccinia striiformis; Canada; China
DOI:
10.4141/P03-195

22. Role of phenology in host susceptibility and within-plant spread of stem rust during reproductive development of perennial ryegrass

Author:
Pfender, W.F.
Source:
Phytopathology 2004 v.94 no.3 pp. 308-316
ISSN:
0031-949X
Subject:
rust diseases; stems; Lolium perenne; developmental stages; phenology; Puccinia graminis; plant pathogenic fungi; pathogenesis; turf grasses; plant age; infection
Abstract:
... Perennial ryegrass (Lolium perenne) was inoculated with urediniospores of Puccinia graminis subsp. graminicola at four stages of reproductive tiller development. All developmental stages, from expansion of the penultimate leaf through anthesis, were equally susceptible to infection measured as number of pustules per total inoculated plant area. However, within each stage from boot through anthesis ...
Handle:
10113/10350
DOI:
10.1094/PHYTO.2004.94.3.308
PubMed:
18943980

23. Effect of barberry eradication on changes in populations of Puccinia graminis in Minnesota

Author:
Peterson, P.D.; Leonard, K.J.; Roelfs, A.P.; Sutton, T.B.
Source:
Plant disease 2005 v.89 no.9 pp. 935-940
ISSN:
0191-2917
Subject:
Puccinia graminis; plant pathogenic fungi; aeciospores; host-pathogen relationships; rust diseases; Berberis vulgaris; host plants; alternative hosts; Minnesota
Abstract:
... Proportions of formae speciales of Puccinia graminis in collections of aeciospores from barberry were determined from cereal rust survey records from 1912 to 2002 in Minnesota. The frequency of P. graminis f. sp. avenae in aeciospore collections fluctuated between 0 and 10% from 1920 to 2002, even though oat was the dominant small grain crop in Minnesota until 1970. In early years, P. graminis f. ...
Handle:
10113/1254
DOI:
10.1094/PD-89-0935

24. Evaluation of Avena spp. accessions for resistance to oat stem rust

Author:
Steinberg, J.G.; Fetch, J.M.; Fetch, T.G., Jr.
Source:
Plant disease 2005 v.89 no.5 pp. 521-525
ISSN:
0191-2917
Subject:
Avena (Poaceae); Puccinia graminis; plant pathogenic fungi; rust diseases; disease resistance; oats; host plants; plant genetics; Canada
Abstract:
... Oat stem rust, caused by Puccinia graminis f. sp. avenae, can cause significant yield losses in the eastern prairie region of western Canada. Currently, the predominant race of P. graminis f. sp. avenae in this region is NA67. Few genes confer resistance to NA67, and none are present in any oat cultivars registered for production in Canada. To detect lines exhibiting resistance to race NA67, we ev ...
DOI:
10.1094/PD-89-0521

25. Leaf rust and stem rust resistance in Triticum dicoccoides populations in Israel

Author:
Anikster, Y.; Manisterski, J.; Long, D.L.; Leonard, K.J.
Source:
Plant disease 2005 v.89 no.1 pp. 55-62
ISSN:
0191-2917
Subject:
Puccinia recondita; Puccinia graminis; plant pathogenic fungi; rust diseases; disease resistance; Triticum turgidum subsp. dicoccoides; seedlings; genetic variation; Israel; Minnesota
Abstract:
... A total of 742 single plant accessions of Triticum dicoccoides were collected from 26 locations in Israel. All accessions were evaluated for leaf rust (Puccinia triticina) resistance in field plots at Tel Aviv, and subsets of 284 and 468 accessions were tested in the greenhouse in Tel Aviv and St. Paul, MN, respectively, for seedling resistance to leaf rust; 460 accessions were also tested for see ...
Handle:
10113/1501
DOI:
10.1094/PD-89-0055

26. Prevalence and Distribution of Common Barberry, the Alternate Host of Puccinia graminis, in Minnesota

Author:
Peterson, P.D.; Leonard, K.J.; Miller, J.D.; Laudon, R.J.; Sutton, T.B.
Source:
Plant disease 2005 v.89 no.2 pp. 159-163
ISSN:
0191-2917
Subject:
Berberis vulgaris; prevalence; geographical distribution; alternative hosts; Puccinia graminis; plant pathogenic fungi; rust diseases; host plants; disease incidence; seedlings; global positioning systems; Minnesota
Abstract:
... A federal and state program operated from 1918 until the 1980s to eradicate common barberry (Berberis vulgaris), the alternate host of Puccinia graminis, from the major areas of cereal production in the United States. Over 500 million bushes were destroyed nationally during the program, approximately 1 million in Minnesota. Some sites in Minnesota where barberry bushes were destroyed remained in t ...
Handle:
10113/3500
DOI:
10.1094/PD-89-0159

27. Races of Puccinia graminis identified in the United States during 2003

Author:
Jin, Y.
Source:
Plant disease 2005 v.89 no.10 pp. 1125-1127
ISSN:
0191-2917
Subject:
rust diseases; Puccinia graminis; plant pathogenic fungi; pathogen identification; pathogenicity; Berberis; Triticum aestivum; wheat; Hordeum vulgare; barley; Avena sativa; oats; United States
Abstract:
... Stem rust of small grain cereals, caused by Puccinia graminis, is a major disease of wheat, barley, and oat. In order to effectively utilize stem rust resistance in the improvement of small grain cereals, it is necessary to monitor the virulence composition and dynamics in the stem rust population. Races of P. graminis from barberry, wheat, barley, and oat were surveyed across the United States du ...
Handle:
10113/1319
DOI:
10.1094/PD-89-1125

28. Races of Puccinia graminis on wheat, barley, and oat in Canada, in 2002 and 2003

Author:
Fetch, T.G. Jr.
Source:
Canadian journal of plant pathology 2005 v.27 no.4 pp. 572-580
ISSN:
0706-0661
Subject:
Avena sativa; oats; Triticum aestivum; wheat; Hordeum vulgare; barley; Puccinia graminis; plant pathogenic fungi; rust diseases; cultivars; disease surveillance; geographical variation; disease resistance; virulence; phenotype; Manitoba; Saskatchewan; Alberta; Ontario
Abstract:
... Annual surveys of stem rust Puccinia graminis are conducted on cereals in Canada to provide information on virulence dynamics in the pathogen population. Wheat, barley, and oat samples were collected in Manitoba, Saskatchewan, Alberta, and Ontario in 2002 and 2003. Stem rust was absent on commercial wheat cultivars in either year. In 2002, stem rust on commercial barley cultivars ranged from trace ...
DOI:
10.1080/07060660509507258

29. Reaction of barley seedlings with different stem rust resistance genes to Puccinia graminis f. sp. tritici and Puccinia graminis f. sp. secalis

Author:
Sun, Y.; Steffenson, B.J.
Source:
Canadian journal of plant pathology 2005 v.27 no.1 pp. 80-89
ISSN:
0706-0661
Subject:
Hordeum vulgare; barley; grain crops; host plants; seedlings; plant response; plant genetics; rust diseases; disease resistance; Puccinia graminis; plant pathogenic fungi; pathotypes
Abstract:
... Seedling tests are desirable for disease resistance screening in breeding programs because a large number of lines can be evaluated in a short period of time and with modest space requirements. This study was undertaken to identify pathotypes of the wheat stem rust pathogen (Puccinia graminis f. sp. tritici) and cultures of the rye stem rust pathogen (Puccinia graminis f. sp. secalis) that might b ...
DOI:
10.1080/07060660509507198

30. Registration of 'HiFi' oat

Author:
McMullen, M.S.; Doehlert, D.C.; Miller, J.D.
Source:
Crop science 2005 v.45 no.4 pp. 1664-1665
ISSN:
0011-183X
Subject:
germplasm releases; rust diseases; grain crops; Puccinia coronata; oats; soluble fiber; Puccinia graminis; plant pathogenic fungi; Avena sativa; disease resistance; grain yield; high-yielding varieties; beta-glucans; North Dakota

31. Registration of 'Morton' oat

Author:
McMullen, M.S.; Doehlert, D.C.; Miller, J.D.
Source:
Crop science 2005 v.45 no.4 pp. 1664-1665
ISSN:
0011-183X
Subject:
germplasm releases; rust diseases; crop quality; flowering; grain crops; Puccinia coronata; oats; phenology; Puccinia graminis; plant pathogenic fungi; Avena sativa; disease resistance; grain yield; high-yielding varieties; North Dakota

32. Rust control in glyphosate tolerant wheat following application of the herbicide glyphosate

Author:
Anderson, J.A.; Kolmer, J.A.
Source:
Plant disease 2005 v.89 no.11 pp. 1136-1142
ISSN:
0191-2917
Subject:
Puccinia recondita; Puccinia graminis; plant pathogenic fungi; rust diseases; disease control; glyphosate; pesticide application; chemical control; Triticum aestivum; wheat; transgenic plants; herbicide resistance
Abstract:
... In greenhouse and field trials, transgenically modified wheat (Triticum aestivum) genotypes with tolerance to glyphosate had extremely low infection types to leaf rust caused by Puccinia triticina when treated with a labeled rate of the herbicide glyphosate prior to inoculation with leaf rust. A surfactant solution and a nonglyphosate herbicide had no effect on leaf rust development on the glyphos ...
Handle:
10113/1311
DOI:
10.1094/PD-89-1136

33. Spore dimensions of Puccinia species of cereal hosts as determined by image analysis

Author:
Anikster, Y.; Eilam, T.; Bushnell, W.R.; Kosman, E.
Source:
Mycologia 2005 v.97 no.2 pp. 474-484
ISSN:
0027-5514
Subject:
Puccinia hordei; grain crops; Puccinia coronata; Puccinia graminis; plant pathogenic fungi; fungal spores; digital images; Puccinia recondita; Puccinia striiformis
DOI:
10.3852/mycologia.97.2.474
PubMed:
16396355

34. Stem rust of small grains and grasses caused by Puccinia graminis. [Erratum: 2005 July, v. 6, no. 4, p. 489.]

Author:
Leonard, K.J.; Szabo, L.J.
Source:
Molecular plant pathology 2005 v.6 no.2 pp. 99-111
ISSN:
1464-6722
Subject:
rust diseases; grasses; genetic transformation; host-pathogen relationships; Puccinia graminis; plant pathogenic fungi; disease resistance; small cereal grains
Abstract:
... 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 ploidy levels and lose ...
Handle:
10113/38317

35. The transfer of leaf and stem rust resistance from wild emmer wheats to durum and common wheat

Author:
Knott, D.R.; Bai, D.; Zale, J.
Source:
Canadian journal of plant science 2005 v.85 no.1 pp. 49-57
ISSN:
0008-4220
Subject:
rust diseases; gene transfer; plant breeding; Triticum turgidum subsp. dicoccoides; cultivars; stems; durum wheat; Puccinia graminis; pathogenicity; Triticum aestivum; Triticum turgidum subsp. durum; plant pathogenic fungi; disease resistance; genetic variation; wild relatives; leaves
DOI:
10.4141/P03-212

36. Genetic diversity in Australian populations of Puccinia graminis f. sp. avenae

Author:
Keiper, F.J.; Haque, M.S.; Hayden, M.J.; Park, R.F.
Source:
Phytopathology 2006 v.96 no.1 pp. 96-104
ISSN:
0031-949X
Subject:
Triticum aestivum; wheat; rust diseases; Puccinia graminis; plant pathogenic fungi; pathogenicity; pathotypes; genetic variation; DNA fingerprinting; microsatellite repeats; population genetics; evolution; Australia
Abstract:
... Sequence-tagged microsatellite profiling was used to develop 110 microsatellites for Puccinia graminis f. sp. tritici (causal agent of wheat stem rust). Low microsatellite polymorphism was exhibited among 10 pathogenically diverse P. graminis f. sp. tritici isolates collected from Australian cereal growing regions over a period of at least 70 years, with two polymorphic loci detected, each reveali ...
DOI:
10.1094/PHYTO-96-0096
PubMed:
18944209

37. Interaction of Fungicide Physical Modes of Action and Plant Phenology in Control of Stem Rust of Perennial Ryegrass Grown for Seed

Author:
Pfender, W.F.
Source:
Plant disease 2006 v.90 no.9 pp. 1225-1232
ISSN:
0191-2917
Subject:
mechanism of action; rust diseases; temporal variation; application timing; seed crop production; sporulation; Lolium perenne; lawns and turf; Puccinia graminis; disease control; phenology; propiconazole; plant pathogenic fungi; grass seed; spore germination; turf grasses
Abstract:
... Azoxystrobin provided protective and curative effects against stem rust (caused by Puccinia graminis subsp. graminicola) of inoculated perennial ryegrass under field conditions, significantly reducing disease severity compared with the nontreated check when applied as much as 15 days before infection or 14 days after infection. Propiconazole had a significant effect when applied 13, but not 15, da ...
Handle:
10113/1479
DOI:
10.1094/PD-90-1225

38. Registration of 'Commander' Durum Wheat

Author:
Clarke, J.M.; McCaig, T.N.; DePauw, R.M.; Knox, R.E.; Ames, N.P.; Clarke, F.R.; Fernandez, M.R.; Marchylo, B.A.; Dexter, J.E.
Source:
Crop science 2006 v.46 no.6 pp. 2701
ISSN:
0011-183X
Subject:
Triticum turgidum subsp. durum; durum wheat; cultivars; germplasm releases; grain yield; disease resistance; rust diseases; plant pathogenic fungi; Puccinia recondita; Puccinia graminis; Saskatchewan
DOI:
10.2135/cropsci2005.12.0455

39. Resistance in U.S. Wheat to Recent Eastern African Isolates of Puccinia graminis f. sp. tritici with Virulence to Resistance Gene Sr31

Author:
Jin, Y.; Singh, R.P.
Source:
Plant disease 2006 v.90 no.4 pp. 476-480
ISSN:
0191-2917
Subject:
rust diseases; cultivars; hard red winter wheat; grain crops; genetic resistance; translocation lines; soft white wheat; strain differences; Puccinia graminis; hard red spring wheat; plant pathogenic fungi; Triticum aestivum; genotype; disease resistance; breeding lines; Kenya; Uganda
Abstract:
... The stem rust resistance gene Sr31 derived from rye has been used as an important source of stem rust resistance in many wheat cultivars worldwide. Isolates of Puccinia graminis f. sp. tritici with virulence to Sr31 were identified from Uganda in 1999. Stem rust susceptibility in wheat lines with Sr31 was observed in Kenya in 2003 and 2004. An isolate collected from Uganda in 1999 and an isolate c ...
Handle:
10113/9984
DOI:
10.1094/PD-90-0476

40. Subcellular localization and functions of the barley stem rust resistance receptor-like serine/threonine-specific protein kinase Rpg1

Author:
Nirmala, J.; Brueggeman, R.; Maier, C.; Clay, C.; Rostoks, N.; Kannangara, C.G.; Von Wettstein, D.; Steffenson, B.J.; Kleinhofs, A.
Source:
Proceedings of the National Academy of Sciences of the United States of America 2006 v.103 no.19 pp. 7518-7523
ISSN:
0027-8424
Subject:
rust diseases; barley; threonine; serine; Hordeum vulgare; Puccinia graminis; cytosol; plant pathogenic fungi; disease resistance; cytochemistry; plasma membrane; enzyme activity; protein phosphorylation
DOI:
10.1073/pnas.0602379103
PubMed:
16648249
PubMed Central:
PMC1464370

41. Use of a complex air pollution model to estimate dispersal and deposition of grass stem rust urediniospores at landscape scale

Author:
Pfender, W.; Graw, R.; Bradley, W.; Carney, M.; Maxwell, L.
Source:
Agricultural and forest meteorology 2006 v.139 no.1-2 pp. 138-153
ISSN:
0168-1923
Subject:
rust diseases; simulation models; spore dispersal; spatial distribution; Lolium perenne; lawns and turf; Puccinia graminis; diurnal variation; plant pathogenic fungi; fungal spores; wind direction; velocity; turf grasses; air microbiology
Abstract:
... Dispersal and dry deposition of urediniospores of Puccinia graminis subsp. graminicola from infected perennial ryegrass was modeled with CALPUFF, a Lagrangian puff atmospheric dispersal model developed for air pollution studies. The emission rate (spores/min/m2 field area) was back-calculated from aerial spore flux from a 6 m x 6 m source plot. Spore flux was measured by a novel approach in which ...
Handle:
10113/28341
DOI:
10.1016/j.agrformet.2006.06.007

42. The spread of stem rust caused by Puccinia graminis f. sp. tritici, with virulence on Sr31 in wheat in Eastern Africa

Author:
Wanyera, R.; Kinyua, M.G.; Jin, Y.; Singh, R.P.
Source:
Plant disease 2006 v.90 no.1 pp. 113
ISSN:
0191-2917
Subject:
seedling diseases; rust diseases; disease incidence; Puccinia graminis; plant pathogenic fungi; pathogenicity; Triticum aestivum; wheat; host plants; disease resistance; Kenya
DOI:
10.1094/PD-90-0113A

43. Chromosomal Locations of Genes for Stem Rust Resistance in Monogenic Lines Derived from Tetraploid Wheat Accession ST464

Author:
Daryl L. Klindworth; James D. Miller; Yue Jin; Steven S. Xu
Source:
Crop science 2007 v.47 no.4 pp. 1441-1450
ISSN:
0011-183X
Subject:
Triticum turgidum subsp. durum; durum wheat; Puccinia graminis; plant pathogenic fungi; rust diseases; genetic resistance; genotype; disease resistance; landraces; genes; chromosome translocation; gene segregation; chromosome mapping
Abstract:
... The genetics of resistance to stem rust (caused by Puccinia graminis Pers.:Pers. f. sp. tritici Eriks. and Henn.) in durum (Triticum turgidum L. ssp. durum) is not as well understood as for bread wheat (T. aestivum L.). Our objective was to determine the chromosomal location of genes for stem rust resistance in four monogenic lines derived from the Ethiopian tetraploid landrace ST464. The four mon ...
Handle:
10113/11592
DOI:
10.2135/cropsci2006.05.0345

44. Detection and Identification of Four Common Rust Pathogens of Cereals and Grasses Using Real-Time Polymerase Chain Reaction

Author:
Barnes, C.W.; Szabo, L.J.
Source:
Phytopathology 2007 v.97 no.6 pp. 717-727
ISSN:
0031-949X
Subject:
wheat; Puccinia graminis; plant pathogenic fungi; DNA fingerprinting; genetic markers; barley; Hordeum vulgare; ribosomal DNA; internal transcribed spacers; Triticum aestivum; Puccinia recondita; Puccinia striiformis; grasses; disease detection; polymerase chain reaction; pathogenicity; rust diseases; grain crops; oats; Avena sativa
Abstract:
... Puccinia spp. are widespread pathogens of cereals and grasses that annually cause significant yield losses worldwide, especially in barley, oat, and wheat. Urediniospore morphology and early symptom development have limited usefulness for distinguishing Puccinia spp. Therefore, we developed real-time polymerase chain reaction assays for rapid detection of the four rust pathogen species, Puccinia g ...
Handle:
10113/8345
DOI:
10.1094/PHYTO-97-6-0717
PubMed:
18943603

45. Development of simple sequence repeat markers for the plant pathogenic rust fungus, Puccinia graminis

Author:
SZABO, LES J.
Source:
Molecular ecology notes 2007 v.7 no.1 pp. 92-94
ISSN:
1471-8278
Subject:
Puccinia graminis; heterozygosity; loci; microsatellite repeats; null alleles; plant pathogenic fungi
Abstract:
... Twenty-four dinucleotide simple sequence repeat markers were developed for the phytopathogenic fungus, Puccinia graminis. The identified loci were polymorphic, with allelic diversity ranging from two to 11 alleles. Observed and expected levels of heterozygosity ranged from 0.000 to 0.960 and from 0.113 to 0.846, respectively. Fourteen of the loci deviated significantly from Hardy-Weinberg equilibr ...
DOI:
10.1111/j.1471-8286.2006.01540.x

46. Geographic Distribution of Stem Rust Resistance in Wheat Landraces

Author:
J. Michael Bonman; Harold E. Bockelman; Yue Jin; Robert J. Hijmans; Ann Inez N. Gironella
Source:
Crop science 2007 v.47 no.5 pp. 1955-1963
ISSN:
0011-183X
Subject:
variety trials; seedlings; durum wheat; Puccinia graminis; plant pathogenic fungi; genetic resistance; landraces; Triticum aestivum; disease resistance; genotype; virulence; geographical distribution; Triticum turgidum subsp. durum; plant genetic resources; rust diseases; geographical variation; disease incidence; Chile; Yugoslavia; Turkey (country); Ethiopia
Abstract:
... Wheat stem rust, caused by Puccinia graminis Pers.:Pers f. sp. tritici Eriks. & Henn., is of renewed concern due to the emergence of a new virulent race in East Africa. Landrace accessions of common wheat (Triticum aestivum L. subsp. aestivum) and durum wheat (T. turgidum L. subsp. durum) from the National Small Grains Collection (NSGC) could be sources of new stem rust resistance genes. In an eff ...
Handle:
10113/8822
DOI:
10.2135/cropsci2007.01.0028

47. Microsatellite Markers Linked to Stem Rust Resistance Allele Sr9a in Wheat

Author:
Toi J. Tsilo; Yue Jin; James A. Anderson
Source:
Crop science 2007 v.47 no.5 pp. 2013-2020
ISSN:
0011-183X
Subject:
rust diseases; microsatellite repeats; dominant genes; marker-assisted selection; genetic resistance; phenotype; host plants; codominance; Puccinia graminis; wheat; chromosome mapping; Triticum aestivum; plant pathogenic fungi; disease resistance; genetic markers
Abstract:
... Host resistance to stem rust of wheat (Triticum aestivum L.), caused by Puccinia graminis Pers.:Pers. f. sp. tritici Eriks. & E. Henn., is more effective and durable when several stem rust resistance (Sr) genes are pyramided into a single line. We studied the Sr9a allele, one of six known alleles at the Sr9 locus on chromosome 2BL, using 116 F₂ plants and their F₂:₃ families derived from the cross ...
Handle:
10113/8823
DOI:
10.2135/cropsci2007.02.0087

48. Registration of 'Briggs' Wheat

Author:
Devkota, R.N.; Rudd, J.C.; Jin, Y.; Glover, K.D.; Hall, R.G.; Hareland, G.A.
Source:
Crop science 2007 v.47 no.1 pp. 432-434
ISSN:
0011-183X
Subject:
germplasm releases; weight; rust diseases; crop quality; Fusarium graminearum; grain crops; genetic resistance; hard red spring wheat; Puccinia graminis; Puccinia recondita; Triticum aestivum; plant pathogenic fungi; disease resistance; grain yield; high-yielding varieties; protein content; South Dakota
DOI:
10.2135/cropsci2006.07.0503

49. Registration of 'Silver Dollar' Perennial Ryegrass

Author:
Rose-Fricker, C.A.; Fraser, M.L.; Meyer, W.A.
Source:
Crop science 2007 v.47 no.1 pp. 435-436
ISSN:
0011-183X
Subject:
germplasm releases; rust diseases; cultivars; Lolium perenne; lawns and turf; appearance (quality); Puccinia graminis; crop yield; Sclerotinia homoeocarpa; plant pathogenic fungi; turf grasses; Oregon; New Jersey
DOI:
10.2135/cropsci2006.03.0194

50. Registration of Spring Wheat Germplasm ND 751 Resistant to Fusarium Head Blight

Author:
Mergoum, M.; Frohberg, R.C.; Stack, R.W.
Source:
Crop science 2007 v.47 no.1 pp. 455-457
ISSN:
0011-183X
Subject:
Fusarium graminearum; rust diseases; germplasm releases; grain crops; genetic resistance; Puccinia graminis; spring wheat; plant pathogenic fungi; Triticum aestivum; disease resistance; plant genetic resources; grain yield; Puccinia recondita; North Dakota
DOI:
10.2135/cropsci2006.03.0193