Phenotypic Diversity in Rhynchosporium secalis from Ethiopia and Host Response to Barley Scald
نویسندگان
چکیده
منابع مشابه
Phylogeographical analyses reveal global migration patterns of the barley scald pathogen Rhynchosporium secalis.
A phylogeographical analysis of the scald pathogen Rhynchosporium secalis was conducted using nuclear DNA sequences from two neutral restriction fragment length polymorphism loci and the mating-type idiomorphs. Approximately 500 isolates sampled from more than 60 field populations from five continents were analysed to infer migration patterns and the demographic history of the fungus. Migration...
متن کاملRhynchosporoside, a host-selective toxin produced by Rhynchosporium secalis, the causal agent of scald disease of barley.
Rhynchosporoside, a phytotoxic compound, has been isolated from cultures of Rhynchosporium secalis, the causal agent of scald disease of barley. The toxin is a cello-bioside of 1,2-propanediol. The compound may play some role in symptom expression because it was isolated from diseased plants in concentrations similar to those that could cause symptoms in toxin-treated plants. The toxin causes l...
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leaf blotch disease of barley, caused by rhynchosporium secalis is a major disease of barley in iran. its worldwide occurrence and economic importance in barley production has motivated studies on the population genetic structure of this pathogen. random amplified polymorphic dna (rapd) method was utilized to investigate the genetic diversity of populations of r. secalis isolated from barley le...
متن کاملTranscriptome Analysis of the Barley-Rhynchosporium secalis Interaction
Leaf scald caused by the infection of Rhynchosporium secalis, is a worldwide crop disease resulting in significant loss of barley yield. In this study, a systematic sequencing of expressed sequence tags (ESTs) was chosen to obtain a global picture of the assembly of genes involved in pathogenesis. To identify a large number of plant ESTs, which are induced at different time points, an amplified...
متن کاملGenetic basis of control of Rhynchosporium secalis infection 4 and symptom expression in barley 5
10 Abstract The genetic basis of several different 11 components of resistance to Rhynchosporium secalis 12 in barley was investigated in a mapping population 13 derived from a cross between winter and spring 14 barley types. Both the severity of visual disease 15 symptoms and amount of R. secalis DNA in leaf 16 tissues were assessed in field trials in Scotland in the 17 2007/2008 and 2008/2009...
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ژورنال
عنوان ژورنال: Plant Pathology Journal
سال: 2004
ISSN: 1812-5387
DOI: 10.3923/ppj.2004.26.34