scholarly journals Ustilago tritici

2020 ◽  
Author(s):  
Keyword(s):  
Ustilago Tritici

Infection of Wheat by Loose Smut, Ustilago tritici (Pers.) Rostr.

Nature ◽  
1955 ◽  
Vol 175 (4454) ◽  
pp. 467-468 ◽  
Author(s):  
C. C. V. BATTS
Keyword(s):  
Loose Smut ◽  
Ustilago Tritici

scholarly journals Identification of Tilletia foetida, Ustilago tritici, and Urocystis tritici Based on Near-Infrared Spectroscopy

2019 ◽  
Vol 2019 ◽  
pp. 1-15 ◽  
Author(s):  
Yaqiong Zhao ◽  
Feng Qin ◽  
Fei Xu ◽  
Jinxing Ma ◽  
Zhenyu Sun ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Disease Control ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Disease Diagnosis ◽  
Support Vector ◽  
Smut Fungi ◽  
Pathogen Identification ◽  
Ustilago Tritici ◽  
Tilletia Foetida

Identifying plant pathogens for disease diagnosis and disease control strategy making is of great significance. In this study, based on near-infrared spectroscopy, a method for identifying three kinds of pathogens causing wheat smuts, including Tilletia foetida, Ustilago tritici, and Urocystis tritici, was investigated. Based on the acquired near-infrared spectral data of the teliospore samples of the three pathogens, pathogen identification models were built in different spectral regions using distinguished partial least squares (DPLS), backpropagation neural network (BPNN), and support vector machine (SVM). Satisfactory identification results were achieved using the DPLS, BPNN, and SVM models built in each of the 22 spectral regions. By contrast, the modeling effects of DPLS and SVM were better than those of BPNN. The modeling ratio of the training set to the testing set affected the identification results of the BPNN models more than those obtained using the DPLS and SVM models. In this study, a rapid, accurate, and nondestructive method was provided for plant pathogen identification, and some basis was provided for disease diagnosis, pathogen monitoring, and disease control. Moreover, some methodological references and supports were provided for identification of quarantine wheat smut fungi in plant quarantine.

Glycoproteins from Ustilago tritici

1978 ◽  
Vol 17 (12) ◽  
pp. 2059-2060 ◽  
Author(s):  
Nasir-ud-Din ◽  
J.K. Wold ◽  
I. Matsumoto ◽  
M.I.D. Chughtai ◽  
E. Walker-Nasir
Keyword(s):  
Ustilago Tritici

scholarly journals EVALUATION OF VARIOUS LINES OF WHEAT AND EPIDEMIOLOGY AGAINST LOOSE SMUT (USTILAGO TRITICI)

2017 ◽  
Vol 29 (2) ◽  
pp. 219
Author(s):  
Ateeq ur Rehman ◽  
Syed A.H Naqvi ◽  
Ummad U.D. Umar ◽  
Rasheed Ahmad
Keyword(s):  
Genetic Resources ◽  
Environmental Variables ◽  
Loose Smut ◽  
Potential Threat ◽  
Breeding Programs ◽  
Ustilago Tritici ◽  
Cereal Production ◽  
Deadly Disease ◽  
Important Disease ◽  
Susceptible Response

Fungal diseases pose a potential threat to successful cereal production in wheat particularly in Pakistan. Loose smut caused by Ustilago tritici is an important disease of wheat. During the current research various lines of wheat were screened against the deadly disease, results showed no line was resistant against the disease in the wheat genetic resources, mostly varieties showed susceptible to highly susceptible response. All the environmental variables were found conducive for the development of the disease. The disease is a serious concern for wheat production and potential breeding programs are the need of time to cater the losses due to this disease. 

Genetics and identification of molecular markers linked to resistance to loose smut (Ustilago tritici) race T33 in durum wheat

Euphytica ◽  
2009 ◽  
Vol 169 (2) ◽  
pp. 151-157 ◽  
Author(s):  
Harpinder Singh Randhawa ◽  
Zlatko Popovic ◽  
Jim Menzies ◽  
Ron Knox ◽  
Stephen Fox
Keyword(s):  
Molecular Markers ◽  
Durum Wheat ◽  
Loose Smut ◽  
Ustilago Tritici

scholarly journals The effect of flowering stage in wheat on the infection efficiency of Ustilago tritici

2005 ◽  
Vol 80 (1) ◽  
pp. 13-19 ◽  
Author(s):  
J.G. Menzies ◽  
P.L. Thomas ◽  
S. Woods
Keyword(s):  
Lower Percentage ◽  
Viable Seed ◽  
Infection Efficiency ◽  
Head Development ◽  
Ustilago Tritici ◽  
Spike Development ◽  
Negative Effect ◽  
Vacuum Method ◽  
Wheat Lines ◽  
Partial Vacuum

In general, in western Canada, the inoculation of wheat (Triticum aestivum) lines to determine the level of resistance to Ustiiago tritici occurs when the plants are at the mid-anthesis stage of spike development. However, it is not always possible to inoculate at this stage so occasionally inoculations are done a few days before or after mid-anthesis. The objective of this study was to determine if inoculation of wheat spikes with U. tritici at different stages of spike development using the partial-vacuum method affected the number of viable seed per spike and subsequent percentage of smutted plants grown from inoculated seed. Four lines of wheat were inoculated at three different stages of spike development in the field each year for 5 years. The stages of spike development studied were preanthesis, mid-anthesis (anthers at either end of the spike were dehisced while those in the middle of the spike were yellow), and post-anthesis (all anthers dehisced). There were significant differences among the four wheat lines and the 5 years of the study for the number of viable seed per spike and the percent of smutted plants. Inoculation at post-anthesis resulted in a significantly greater number of viable seed per spike and lower percentage of smutted plants. We conclude that the partial-vacuum method of inoculation with Ustiiago tritici should be done at the pre- or midanthesis stage of wheat head development to minimize the negative effect of maturity on infection efficiency.

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