FORMATION OF TREHALOSE AND POLYOLS BY WHEAT STEM RUST (PUCCINIA GRAMINIS TRITICI) UREDOSPORES

1962 ◽  
Vol 40 (1) ◽  
pp. 1248-1251 ◽  
Author(s):  
H. J. Reisener ◽  
H. R. Goldschmid ◽  
G. A. Ledingham ◽  
A. S. Perlin
Keyword(s):  
Stem Rust ◽  
Puccinia Graminis ◽  
Wheat Stem Rust ◽  
Puccinia Graminis Tritici

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The Constitution of a Glucomannan from Wheat Stem Rust (Puccinia graminis tritici) Urediospores1

1959 ◽  
Vol 81 (3) ◽  
pp. 684-688 ◽  
Author(s):  
N. Prentice ◽  
L. S. Cuendet ◽  
W. F. Geddes ◽  
F. Smith
Keyword(s):  
Stem Rust ◽  
Puccinia Graminis ◽  
Wheat Stem Rust ◽  
Puccinia Graminis Tritici

scholarly journals Chemical Composition of Uredospores of Wheat Stem Rust (Puccinia graminis tritici)

Nature ◽  
1954 ◽  
Vol 174 (4442) ◽  
pp. 1151-1151 ◽  
Author(s):  
NEVILLE PRENTICE ◽  
L. S. CUENDET
Keyword(s):  
Chemical Composition ◽  
Stem Rust ◽  
Puccinia Graminis ◽  
Wheat Stem Rust ◽  
Puccinia Graminis Tritici

scholarly journals The nucleolus of wheat stem rust uredospores

1969 ◽  
Vol 47 (12) ◽  
pp. 1887-1889 ◽  
Author(s):  
Stephen Mitchell ◽  
Michael Shaw
Keyword(s):  
Electron Microscopy ◽  
Ribosomal Rna ◽  
Stem Rust ◽  
Ribonucleic Acid ◽  
Acid Formation ◽  
Puccinia Graminis ◽  
Wheat Stem Rust ◽  
Puccinia Graminis Tritici ◽  
Mean Diameter

Electron microscopy shows that the nuclei in immature uredospores of Puccinia graminis tritici possess prominent nucleoli with a mean diameter of 1.7 ± 0.4 μ. The nucleoli in mature uredospores are much smaller (0.5 μ). This reduction in size of the nucleoli may indicate that ribosomal RNA (ribonucleic acid) formation is repressed as uredospores mature.

scholarly journals Physiologic Differentiation of Wheat Stem Rust on Rye

1978 ◽  
Vol 31 (5) ◽  
pp. 545 ◽  
Author(s):  
NH Luig ◽  
BH Tan
Keyword(s):  
Secale Cereale ◽  
Stem Rust ◽  
Puccinia Graminis ◽  
Wheat Stem Rust ◽  
Puccinia Graminis Tritici

Five self-fertile lines of Secale cereale possessing single genes conferring resistance to stem rust were successfully used to differentiate between strains of Puccinia graminis tritici. In an earlier study four of these lines were shown to differentiate between Australian cultures of P. graminis secalis. Gene H transferred from Wrens-5 rye to one of the five lines appears to be identical with gene Sr27 in Acosta's wheat-Imperial rye translocation stock WRT 238.5.

FORMATION OF TREHALOSE AND POLYOLS BY WHEAT STEM RUST (PUCCINIA GRAMINIS TRITICI) UREDOSPORES

1962 ◽  
Vol 40 (9) ◽  
pp. 1248-1251 ◽  
Author(s):  
H. J. Reisener ◽  
H. R. Goldschmid ◽  
G. A. Ledingham ◽  
A. S. Perlin
Keyword(s):  
Stem Rust ◽  
Puccinia Graminis ◽  
Wheat Stem Rust ◽  
Puccinia Graminis Tritici

scholarly journals Prevalence and Distribution of Common Barberry, the Alternate Host of Puccinia graminis, in Minnesota

Plant Disease ◽  
2005 ◽  
Vol 89 (2) ◽  
pp. 159-163 ◽  
Author(s):  
P. D. Peterson ◽  
K. J. Leonard ◽  
J. D. Miller ◽  
R. J. Laudon ◽  
T. B. Sutton
Keyword(s):  
United States ◽  
Stem Rust ◽  
Active Sites ◽  
The United States ◽  
Puccinia Graminis ◽  
Alternate Host ◽  
Wheat Stem Rust ◽  
State Program ◽  
Cereal Production ◽  
Active Class

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 the “active” class when eradication was phased out in the 1980s. Active sites were defined as those on which there was still a possibility of emergence of barberry seedlings or sprouts arising from the parent bush. In the present study, from 1998 to 2002, 72 of the approximately 1,200 active sites in Minnesota were surveyed. Areas within 90 m of mapped locations of previously destroyed bushes were searched carefully at each site. Reemerged barberry plants were found on 32 sites. The reproductive status and GPS coordinates were recorded for each reemerged bush. More than 90% of the barberry bushes were found in counties with less than 400 ha of wheat per county, mostly in southeastern Minnesota, but one bush was found in a major wheat-producing county in northwestern Minnesota. Reemergence of barberry may serve as a source of new wheat stem rust races in future epidemics.

scholarly journals Characterization of Wheat Monogenic Lines with Known Sr Genes and Wheat Lines with Resistance to the Ug99 Race Group for Resistance to Prevalent Races of Puccinia graminis f. sp. tritici in China

Plant Disease ◽  
2020 ◽  
Vol 104 (7) ◽  
pp. 1939-1943
Author(s):  
Xian Xin Wu ◽  
Qiu Jun Lin ◽  
Xin Yu Ni ◽  
Qian Sun ◽  
Rong Zhen Chen ◽  
...  
Keyword(s):  
Food Security ◽  
Stem Rust ◽  
Adult Plant ◽  
Puccinia Graminis ◽  
Wheat Cultivars ◽  
Wheat Stem Rust ◽  
Wheat Improvement ◽  
Wheat Lines ◽  
Sr Genes

Wheat stem rust, caused by Puccinia graminis f. sp. tritici, is one of the most serious fungal diseases in wheat production, seriously threatening the global supply of wheat and endangering food security. The present study was conducted to evaluate wheat monogenic lines with known Sr genes to the most prevalent P. graminis f. sp. tritici races in China. In addition, wheat lines introduced from the International Maize and Wheat improvement Center (CIMMYT) with resistance to the Ug99 race group were also evaluated with the prevalent Chinese P. graminis f. sp. tritici races. The monogenic lines containing Sr9e, Sr21, Sr26, Sr31, Sr33, Sr35, Sr37, Sr38, Sr47, and SrTt3 were effective against races 21C3CTTTM, 34C0MRGSM, and 34C3MTGQM at both seedling and adult-plant stages. In contrast, monogenic lines containing Sr6, Sr7b, Sr8a, Sr9a, Sr9b, Sr9d, Sr9f, Sr9g, Sr13, Sr16, Sr18, Sr19, Sr20, Sr24, Sr28, Sr29, and Sr34 were highly susceptible to these races at both seedling and adult-plant stages. Lines with Sr5, Sr10, Sr13, Sr14, Sr15, Sr17, Sr21, Sr22, Sr23, Sr25, Sr27, Sr29, Sr30, Sr32, Sr36, and Sr39 were resistant to one or more of the tested races. Among the 123 CIMMYT lines, 38 (30.9%) showed varying levels of susceptibility to Chinese P. graminis f. sp. tritici races. The results should be useful for breeding wheat cultivars with resistance to stem rust.

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