Results 161 to 170 of about 2,513 (182)

POPULATION STRUCTURE OF THE BARLEY PATHOGEN PYRENOPHORA TERES f. TERES IN LITHUANIA

Journal of Plant Pathology, 2012
The amplified fragment length polymorphism (AFLP) technique was used to study the genetic structure of Pyrenophora teres, the causal agent of barley net blotch disease. Samples were collected from five locations in Lithuania in 2008. All 145 isolates had unique AFLP patterns.
Statkeviciute, G., Jonaviciene, K., Semaskiene, R., Leistrumaite, A., Dabkevicius, Z., Brazauskas, G.   +5 more
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Fungal growth, proteinaceous toxins and virulence of Pyrenophora teres f. teres on barley

Australasian Plant Pathology, 2014
Pyrenophora teres f. teres (Ptt) causes net form net blotch (NFNB), an important disease of barley, but isolates of Ptt vary in their ability to cause symptoms on susceptible cultivars. Ptt isolates with different virulence were used to compare conidial germination and fungal growth on the barley cultivar ‘Sloop’.
Ismail, I., Godfrey, D., Able, A.
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Diagnostic microsatellite markers for the barley net blotch pathogens,Pyrenophora teresf.maculataandPyrenophora teresf.teres

Australasian Plant Pathology, 2008
The barley net blotch pathogen Pyrenophora teres occurs in two forms, evident as spot (P. teres f. maculata) or net (P. teres f. teres) type symptoms. The two forms can be difficult to differentiate based on disease symptoms or spore morphology. Here we report nine simple sequence repeat markers that reveal differences between the two forms, providing ...
F. J. Keiper, M. Grcic, E. Capio, H. Wallwork   +3 more
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Continuous variation and specific interactions in the Pyrenophora teres f. teres–barley pathosystem in Uruguay

Journal of Plant Diseases and Protection, 2020
The nature of host–pathogen interactions between Pyrenophora teres f. teres and barley has been reported to be as well race-specific as race-non-specific with evidence that the definition of races is tenuous. Infection responses of 266 single-spore isolates of P. teres f.
Fernanda M. Gamba, Adnan Šišić, Maria R. Finckh   +2 more
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Characterization of virulence in Pyrenophora teres f. maculata

2021
Net blotches are common foliar diseases of barley caused by the fungus Pyrenophora teres. There are two forms of net blotch. The net form net blotch (NFNB), caused by P. teres f. teres (Ptt) and the spot form net blotch (SFNB), caused by P. teres f. maculata (Ptm). Spot form net blotch is a major foliar disease of barley worldwide. In Australia, annual
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Quantitative Resistance toPyrenophora teresf.teresin Barley

Phytopathology, 1992
Resistance to the net blotch pathogen Pyrenophora teres f. teres was studied in seven barley genotypes using four criteria: 1) infection response (size and type of lesion), 2) area under the disease progress curve (AUDPC), 3) terminal severity (TS), and 4) apparent infection rate (r). The susceptible check, Kombar, and resistant check, Tifang, differed
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Pathotype Diversity ofPyrenophora teresf.tereson Barley

Phytopathology, 1992
From 91 isolates collected in California, 13 pathotypes of Pyrenophora teres f. teres, the causal organism of net blotch of barley, were identified on 22 differential barley genotypes. Pathotype 3-10-15-19-21 (numbers correspond to the differential barley hosts that exhibit a high infection response [HIR] to this pathotype) was most prevalent ...
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Inheritance of resistance to Pyrenophora teres f. teres in spring barley

Plant Breeding, 1999
AbstractThe inheritance of seedling resistance to a Swedish isolate of Pyrenophora teres f. teres was investigated in four resistance sources of spring barley. Accessions CI 2330, CI 5791, CI 5822 and CI 9779 were used as resistance sources, and the cultivar ‘Alexis’ was used as a susceptible parent in different crosses.
R. Jonsson, T. Säll, T. Kraft, M. Gustafsson   +3 more
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Occurrence and genetic and pathogenic characterisation of Pyrenophora teres f. teres, P. teres f. maculata and their hybrids

2018
Pyrenophora teres is the causal agent of net blotches, which are important foliar diseases of barley (Hordeum vulgare) worldwide. Pyrenophora teres has two forms, P. teres f. teres (Ptt) and P. teres f. maculata (Ptm), which causes the net and spot forms respectively based on the symptoms that they induce on barley.
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Host Range ofPyrenophora teresf.teresIsolates from California

Plant Disease, 1993
The host range of Pyrenophora teres f. teres (net blotch pathogen of barley) isolates from California was studied in the growth chamber and in the held. In the growth chamber, 28 of 43 gramineous species tested were infected by at least one of six P. t. teres isolates originating from Hordeum vulgare or H. murinum subsp. leporinum.
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