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A. Al-Daoude Department of Molecular Biology and Biotechnology, AECS, P.O. Box 6091 Damascus, Syria

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E. Al-Shehadah Department of Molecular Biology and Biotechnology, AECS, P.O. Box 6091 Damascus, Syria

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A. Shoaib Department of Molecular Biology and Biotechnology, AECS, P.O. Box 6091 Damascus, Syria

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M. Jawhar Department of Molecular Biology and Biotechnology, AECS, P.O. Box 6091 Damascus, Syria

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M.I.E. Arabi Department of Molecular Biology and Biotechnology, AECS, P.O. Box 6091 Damascus, Syria

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Spot blotch (SB) caused by the hemibiotrophic fungal pathogen Cochliobolus sativus is a destructive disease of barley worldwide. To better understand the mechanisms of resistance to this disease, the involvements of salicylic acid (SA), hydrogen peroxide (H2O2) and ion fluxes during the interaction between resistant and susceptible barley seedlings and C. sativus were investigated. Early SA accumulation in leaf tissues was accompanied with an increase in H2O2 concentration in both compatible and incompatible interactions. The resistant cultivar constitutively contained higher levels of H2O2 and SA, as well as during the 72 h as compared with the un-infected control (0 h). However, levels increased rapidly upon infection in both cultivars. Moreover, a markedly greater increase in ion fluxes from the compatible material compared with the incompatible one was observed. Results suggest that SA and H2O2 accumulation are important during both compatible and incompatible barley- C. sativus interactions.

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Cereal Research Communications
Language English
Size A4
Year of
Foundation
1973
Volumes
per Year
1
Issues
per Year
4
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0133-3720 (Print)
ISSN 1788-9170 (Online)