β-D-glucan content of wheat kernels after inoculation With Fusarium culmorum Sacc

2012 ◽  
Vol 60 (4) ◽  
pp. 377-384
Author(s):  
S. Šliková ◽  
M. Havrlentová ◽  
P. Hauptvogel ◽  
Ľ. Mendel ◽  
E. Gregová ◽  
...  

Winter wheat landraces and modern Slovak cultivars were inoculated with the pathogen Fusarium culmorum Sacc. by spraying in May 2008, in plot experiments under natural conditions in Piešťany, Slovakia. The objective was to examine the responses of the tested genotypes to inoculation with F. culmorum and to determine changes in the β-D-glucan content in the kernels. The area under the disease progress curve (AUDPC), Fusarium-damaged kernels (FDK) and the β-D-glucan and deoxynivalenol (DON) contents in the grains were determined using Megazyme and Ridascreen® Fast DON assay kits. Wheat landraces had lower AUDPC and FDK, and accumulated 67.4% less DON than modern cultivars. There were highly significant correlations (P < 0.01) between AUDPC and DON content, between FDK and DON, and between AUDPC and FDK. The correlation between β-D-glucan content and AUDPC was also significant (P < 0.05), but not correlations between β-D-glucan and other traits. The β-D-glucan content in the grain of wheat genotypes artificially inoculated with F. culmorum was lower than in grains without infection. The wheat landraces contained more β-D-glucan than modern cultivars and showed higher resistance to F. culmorum. The three wheat landraces had significantly lower spike and kernel infection compared to modern cultivars and could be used to breed elite cultivars with enhanced Fusarium head blight resistance.

Crop Science ◽  
2020 ◽  
Vol 60 (6) ◽  
pp. 2882-2900 ◽  
Author(s):  
Dylan L. Larkin ◽  
Amanda L. Holder ◽  
R. Esten Mason ◽  
David E. Moon ◽  
Gina Brown‐Guedira ◽  
...  

2019 ◽  
Vol 7 (6) ◽  
pp. 784-798 ◽  
Author(s):  
Jin Cai ◽  
Shan Wang ◽  
Zhenqi Su ◽  
Tao Li ◽  
Xianghui Zhang ◽  
...  

2010 ◽  
Vol 28 (4) ◽  
pp. 647-655 ◽  
Author(s):  
Thomas Miedaner ◽  
Tobias Würschum ◽  
Hans P. Maurer ◽  
Viktor Korzun ◽  
Erhard Ebmeyer ◽  
...  

Plant Disease ◽  
2011 ◽  
Vol 95 (1) ◽  
pp. 31-37 ◽  
Author(s):  
Peter Horevaj ◽  
Liane R. Gale ◽  
Eugene A. Milus

Head blight of wheat in the United States is caused primarily by the deoxynivalenol (DON)-producing chemotype of Fusarium graminearum. However, the discovery of the nivalenol (NIV) chemotype of F. graminearum in Louisiana and Arkansas necessitates having resistance in wheat to both chemotypes. The objectives of this research were to quantify resistance of selected winter wheat lines to initial infection and pathogen spread within spikes, to determine whether wheat lines selected for resistance to the DON chemotype also have resistance to the NIV chemotype, and to improve the methods for quantifying resistance to initial infection. A susceptible check (Coker 9835) and 15 winter wheat lines, which are adapted to the southeastern United States and possess diverse sources of head blight resistance, were evaluated for head blight resistance in a series of greenhouse and growth-chamber experiments. Significant levels of resistance to both initial infection and spread within a spike were found among the lines, and lines with resistance to isolates of the DON chemotype had even higher levels of resistance to isolates of the NIV chemotype. Quantifying resistance to initial infection was improved by standardizing the inoculum and environmental conditions. Additional information related to resistance to spread within a spike was obtained by calculating the area under the disease progress curve from 7 to 21 days after inoculation.


Crop Science ◽  
2000 ◽  
Vol 40 (1) ◽  
pp. 62-67 ◽  
Author(s):  
Mariana Ittu ◽  
Nicolae N. S a ˜ ulescu ◽  
Ioana Hagima ◽  
Gheorghe Ittu ◽  
Pompiliu Must a ˜ tea

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