Identification of Host Resistant Effective against the Barley Spot Form Net Blotch Pathogen

Spot form net blotch (SFNB) caused by Pyrenophora teres f. maculata is a major foliar disease of barley (Hordeum vulgare L.) worldwide. SFNB epidemics have recently been observed in major barley producing countries, suggesting that the local barley cultivars are not resistant and that virulence of t...

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Main Author: Neupane, Anjan
Format: Others
Published: North Dakota State University 2018
Online Access:https://hdl.handle.net/10365/27372
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spelling ndltd-ndsu.edu-oai-library.ndsu.edu-10365-273722021-09-28T17:11:05Z Identification of Host Resistant Effective against the Barley Spot Form Net Blotch Pathogen Neupane, Anjan Spot form net blotch (SFNB) caused by Pyrenophora teres f. maculata is a major foliar disease of barley (Hordeum vulgare L.) worldwide. SFNB epidemics have recently been observed in major barley producing countries, suggesting that the local barley cultivars are not resistant and that virulence of the pathogen populations may have changed. Here we attempt to identify sources of resistance effective against diverse isolates of the SFNB pathogen. A total of 2062 world barley core collection accessions were phenotyped using isolates of this pathogen collected in the United States (FGO), Australia (SG1), New Zealand (NZKF2), and Denmark (DEN 2.6). Isolate-specific susceptibility was identified in several of the barley accessions tested, indicating variability in both pathogen virulence and host resistance/susceptibility. Collectively, only 15 barley accessions were resistant across all isolates tested. Future research will involve the characterization of host resistance, pathogen virulence, and the host-pathogen interaction associated with SFNB of barley. 2018-01-30T22:10:35Z 2018-01-30T22:10:35Z 2014 text/thesis https://hdl.handle.net/10365/27372 NDSU policy 190.6.2 https://www.ndsu.edu/fileadmin/policy/190.pdf application/pdf North Dakota State University
collection NDLTD
format Others
sources NDLTD
description Spot form net blotch (SFNB) caused by Pyrenophora teres f. maculata is a major foliar disease of barley (Hordeum vulgare L.) worldwide. SFNB epidemics have recently been observed in major barley producing countries, suggesting that the local barley cultivars are not resistant and that virulence of the pathogen populations may have changed. Here we attempt to identify sources of resistance effective against diverse isolates of the SFNB pathogen. A total of 2062 world barley core collection accessions were phenotyped using isolates of this pathogen collected in the United States (FGO), Australia (SG1), New Zealand (NZKF2), and Denmark (DEN 2.6). Isolate-specific susceptibility was identified in several of the barley accessions tested, indicating variability in both pathogen virulence and host resistance/susceptibility. Collectively, only 15 barley accessions were resistant across all isolates tested. Future research will involve the characterization of host resistance, pathogen virulence, and the host-pathogen interaction associated with SFNB of barley.
author Neupane, Anjan
spellingShingle Neupane, Anjan
Identification of Host Resistant Effective against the Barley Spot Form Net Blotch Pathogen
author_facet Neupane, Anjan
author_sort Neupane, Anjan
title Identification of Host Resistant Effective against the Barley Spot Form Net Blotch Pathogen
title_short Identification of Host Resistant Effective against the Barley Spot Form Net Blotch Pathogen
title_full Identification of Host Resistant Effective against the Barley Spot Form Net Blotch Pathogen
title_fullStr Identification of Host Resistant Effective against the Barley Spot Form Net Blotch Pathogen
title_full_unstemmed Identification of Host Resistant Effective against the Barley Spot Form Net Blotch Pathogen
title_sort identification of host resistant effective against the barley spot form net blotch pathogen
publisher North Dakota State University
publishDate 2018
url https://hdl.handle.net/10365/27372
work_keys_str_mv AT neupaneanjan identificationofhostresistanteffectiveagainstthebarleyspotformnetblotchpathogen
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