ArticleMolecular plant pathology2009
Studies on the mechanism of resistance to Bipolaris sorokiniana in the barley lesion mimic mutant bst1.
Article in Molecular plant pathology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 21 citations in OpenAlex.
- Antagonistic responses of native Trichoderma spp. vary among Bipolaris sorokiniana isolates.Archives of microbiology · 2026Article
- UPLC-ESI-TOF-MS Profiling of Metabolome Alterations in Barley (Journal of agricultural and food chemistry · 2025Article
- Development of Diagnostic Markers and Applied for Genetic Diversity Study and Population Structure ofJournal of fungi (Basel, Switzerland) · 2023Article
- Identification and fine mapping of lesion mimic mutantBreeding science · 2021Article
- Enhanced SA and CaMolecular genetics and genomics : MGG · 2021Article
- Wheat Varietal Response toGenes · 2021Article
- The role of reactive oxygen in the development of Ramularia leaf spot disease in barley seedlings.Annals of botany · 2018Article
- Mutation in RiceFrontiers in plant science · 2018Article
- Differential effects of lesion mimic mutants in barley on disease development by facultative pathogens.Journal of experimental botany · 2015Article
- Two wheat (Triticum aestivum) pathogenesis-related 10 (PR-10) transcripts with distinct patterns of abundance in different organs.Molecular biotechnology · 2012Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
SUMMARY The Bipolaris sorokiniana tolerant 1 (bst1) barley mutant is derived from fast neutron-irradiated seeds of wild-type Bowman(Rph3). The induced mutation was genetically localized to a position on chromosome 5HL distal to the centromere using amplified fragment length polymorphism markers. In addition, the defence responses and related gene expression in the bst1 mutant after fungal challenge were compared with those occurring in wild-type plants. Hydrogen peroxide generation, determined by 3,3-diaminobenzidine staining, revealed a clearly reduced level of bst1, compared with the wild-type, during the entire experimental time: 8-120 h post-inoculation (hpi). At 48 hpi, the wild-type samples displayed twice as much fungal mass and three times greater H(2)O(2) production than bst1. At the same time, staining of B. sorokiniana showed less fungal growth in the spontaneous lesions of bst1 compared with the wild-type. Monitoring of defence-related genes at 48 hpi demonstrated strong expression of PR-1a, PR-2, PR-5 and PR-10 in bst1. A gene coding for a unique oxidoreductase enzyme, designated as HCP1, was expressed at much higher levels in inoculated leaves of the bst1 mutant than in those of the wild-type plant. Taken together, the results suggest that the defence to B. sorokiniana largely relies on salicylic acid-responsive pathogenesis-related (PR) genes, as well as selected reactive oxygen species and unknown HCP1-associated factors.
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