scholarly journals Compatible and incompatible interactions involving the Bt10 gene in wheat for resistance to Tilletia tritici, the common bunt pathogen

2012 ◽  
Vol 42 (Special Issue) ◽  
pp. 14-14
Author(s):  
D.A. Gaudet ◽  
F. Leggett ◽  
Z.-X. Lu ◽  
M. Frick ◽  
B. Puchalski ◽  
...  
Keyword(s):  
Full Text ◽  
Common Bunt ◽  
Tilletia Tritici ◽  
The Common ◽  
Incompatible Interactions

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scholarly journals Compatible and Incompatible Interactions in Wheat Involving the Bt-10 Gene for Resistance to Tilletia tritici, the Common Bunt Pathogen

2007 ◽  
Vol 97 (11) ◽  
pp. 1397-1405 ◽  
Author(s):  
Denis A. Gaudet ◽  
Zhen-Xiang Lu ◽  
Frances Leggett ◽  
Bryan Puchalski ◽  
André Laroche
Keyword(s):  
Compatible Interaction ◽  
Incompatible Interaction ◽  
Common Bunt ◽  
Tilletia Tritici ◽  
Pathogen Invasion ◽  
Reaction Zones ◽  
The Common ◽  
Wheat Lines ◽  
Compatible Interactions ◽  
Incompatible Interactions

The infection of wheat lines Neepawa (susceptible), and its sib BW553 that is nearly isogenic for the Bt-10 resistance gene by differentially virulent races T1 and T27 of common bunt (Tilletia tritici), was followed for 21 days following seeding (dfs) using fluorescence and confocal microscopy. Spore germination was nonsynchronous and all spore stages including germination were observed 5 to 21 dfs. Initial host perception of pathogen invasion, based on autofluorescence in epidermal cells adjacent to the appressoria, was similar in both compatible and incompatible interactions, and occurred as early as 5 to 6 dfs. The total number of sites on a 1-cm segment of coleoptile adjacent to the seed that exhibited autofluorescence was similar in both the compatible and incompatible interactions and rose to a maximum of 35 to 40 per 1 cm length of coleoptile following 17 dfs, although new infection events were observed as late as 21 dfs. In the compatible interaction, the autofluorescence became more diffuse 10 to 12 dfs, emanating in all directions in association with fungal spread. In the incompatible interaction, autofluorescence remained restricted to a small area surrounding the penetration site. Two different reaction zones that extended further in tissues surrounding the penetration point in the incompatible interaction compared with the compatible interaction were identified. The accumulation of callose around invading fungal hyphae was observed during both the compatible and incompatible interactions from 8 to 21 dfs. While callose accumulation was more extensive and widespread in the incompatible interaction, it was clearly present in compatible interactions, particularly in treatments involving BW553. These results were confirmed by expression of callose synthase transcripts that were more abundant in BW553 than in Neepawa and were upregulated during pathogen infection in both compatible and incompatible interactions.

scholarly journals Toxicity of wheat non-specific lipid transfer proteins to Tilletia tritici, the common bunt pathogen

2012 ◽  
Vol 42 (Special Issue) ◽  
pp. 3-3
Author(s):  
D.A. Gaudet ◽  
J.-Y. Sun ◽  
Z.-X. Lu ◽  
M. Frick ◽  
B. Puchalski ◽  
...  
Keyword(s):  
Full Text ◽  
Lipid Transfer ◽  
Common Bunt ◽  
Lipid Transfer Proteins ◽  
Tilletia Tritici ◽  
The Common ◽  
Specific Lipid

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scholarly journals Common bunt (Tilletia tritici) in different wheat genotypes

2012 ◽  
Vol 42 (Special Issue) ◽  
pp. 16-19 ◽  
Author(s):  
S. Rajkovic ◽  
N. Dolovac
Keyword(s):  
Full Text ◽  
Common Bunt ◽  
Wheat Genotypes ◽  
Tilletia Tritici

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scholarly journals Effect of some induce chemical and biological agents against (Tilletia tritici (Bjerk) and T.laevis (Kühn) causal agents of wheat Common bunt disease

2016 ◽  
Vol 13 (2) ◽  
pp. 253-260
Author(s):  
Baghdad Science Journal
Keyword(s):  
Seed Treatment ◽  
Biological Agents ◽  
Aminobutyric Acid ◽  
Systemic Resistance ◽  
Induce Systemic Resistance ◽  
Common Bunt ◽  
College Of Agriculture ◽  
Effective Microorganisms ◽  
Tilletia Tritici ◽  
Foliar Treatment

This study was conducted to evaluate the efficiency of some chemicals and biological agents to induce systemic resistance (ISR) against to wheat common bunt disease caused by the two species of fungus Tilletia tritici (Bjerk.) Wint (T. caries (Dac.) Tul.) and T. laevis Kuhn (T. foetida (Wall.) Liro. Trails in the efforts to find an alternative, safe and environmentally friendly means to control the disease. Results of this study which carried out during two consecutive seasons for the years 2012 - 2013 and 2013 - 2014 at two different environmental locations. Seed treatment by (SA 100 and 200 mg/L, 500 ?–aminobutyric acid (BABA) and 1000 mg/L, Effective Microorganisms (EM1) 40 and 150 ml/kg seeds) have led to high significant reduction in the percentage of common bunt compared with the control (plants resulting from the seeds contaminated non- treatment), While foliar treatment showed some significant differences, especially in the experiment carried out at the fields of College of Agriculture - Baghdad University compared with experiments carried out in the fields of Faculty of Agricultural Sciences -University of Sulaimania, which did not showed significant differences in most treatments. The treatment with Effective microorganisms was found efficient in reducing the infection rate compared with SA and BABA.

scholarly journals The effect of fungicides treatments on the wheat common bunt (Tilletia spp.) in Transylvania (Romania)

2012 ◽  
Vol 42 (Special Issue) ◽  
pp. 56-61 ◽  
Author(s):  
E. Nagy ◽  
V. Moldovan
Keyword(s):  
Full Text ◽  
Common Bunt

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scholarly journals Laboratory diagnostics of common bunt and dwarf bunt

2012 ◽  
Vol 42 (Special Issue) ◽  
pp. 75-77
Author(s):  
M. Kochanová ◽  
E. Prokinová ◽  
P. Ryšánek
Keyword(s):  
Full Text ◽  
Laboratory Diagnostics ◽  
Common Bunt ◽  
Dwarf Bunt

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