Nonhost resistance of barley is successfully manifested against Magnaporthe grisea and a closely related Pennisetum-infecting lineage but is overcome by Magnaporthe oryzae

Magnaporthe oryzae is a major pathogen of rice (Oryza sativa L.) but is also able to infect other grasses, including barley (Hordeum vulgare L.). Here, we report a study using Magnaporthe isolates collected from other host plant species to evaluate their capacity to infect barley. A nonhost type of...

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Bibliographic Details
Published in:Molecular plant-microbe interactions : MPMI, Vol. 19, No. 9 (2006), p. 1014-22
Main Author: Zellerhoff, Nina (Author)
Other Involved Persons: Jarosch, Birgit ; Groenewald, Johannes Z ; Crous, Pedro W ; Schaffrath, Ulrich
Format: Article
Language:English
ISSN:0894-0282
Item Description:Date Completed 27.10.2006
Date Revised 19.11.2015
published: Print
Citation Status MEDLINE
Copyright: From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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245 1 0 |a Nonhost resistance of barley is successfully manifested against Magnaporthe grisea and a closely related Pennisetum-infecting lineage but is overcome by Magnaporthe oryzae 
500 |a Date Completed 27.10.2006 
500 |a Date Revised 19.11.2015 
500 |a published: Print 
500 |a Citation Status MEDLINE 
500 |a Copyright: From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine 
520 |a Magnaporthe oryzae is a major pathogen of rice (Oryza sativa L.) but is also able to infect other grasses, including barley (Hordeum vulgare L.). Here, we report a study using Magnaporthe isolates collected from other host plant species to evaluate their capacity to infect barley. A nonhost type of resistance was detected in barley against isolates derived from genera Pennisetum (fontaingrass) or Digitaria (crabgrass), but no resistance occurred in response to isolates from rice, genus Eleusine (goosegrass), wheat (Triticum aestivum L.), or maize (Zea mays L.), respectively. Restriction of pathogen growth in the nonhost interaction was investigated microscopically and compared with compatible interactions. Real-time polymerase chain reaction was used to quantify fungal biomass in both types of interaction. The phylogenetic relationship among the Magnaporthe isolates used in this study was investigated by inferring gene trees for fragments of three genes, actin, calmodulin, and beta-tubulin. Based on phylogenetic analysis, we could distinguish different species that were strictly correlated with the ability of the isolates to infect barley. We demonstrated that investigating specific host interaction phenotypes for a range of pathogen isolates can accurately highlight genetic diversity within a pathogen population 
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700 1 |a Groenewald, Johannes Z  |e verfasserin  |4 aut 
700 1 |a Crous, Pedro W  |e verfasserin  |4 aut 
700 1 |a Schaffrath, Ulrich  |e verfasserin  |4 aut 
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