Document Detail

Digital gene expression analysis of early root infection resistance to Sporisorium reilianum f. sp. zeae in maize.
MedLine Citation:
PMID:  23196693     Owner:  NLM     Status:  MEDLINE    
The maize smut fungus, Sporisorium reilianum f. sp. zeae, which is an important biotrophic pathogen responsible for extensive crop losses, can infect maize by invading the root during the early seedling stage. In order to investigate disease-resistance mechanisms at this early seedling stage, digital gene expression analysis, which applies a dual-enzyme approach, was used to identify the transcriptional changes in the roots of Huangzao4 (susceptible) and Mo17 (resistant) after root inoculation with S. reilianum. During the infection in the roots, the expression pattern of pathogenesis-related genes in Huangzao4 and Mo17 were significantly differentially regulated at different infection stages. The glutathione S-transferase enzyme activity and reactive oxygen species levels also showed changes before and after inoculation. The total lignin contents and the pattern of lignin depositions in the roots differed during root colonization of Huangzao4 and Mo17. These results suggest that the interplay between S. reilianum and maize during the early infection stage involves many important transcriptional and physiological changes, which offer several novel insights to understanding the mechanisms of resistance to the infection of biotrophic fungal pathogens.
Shaopeng Zhang; Yannong Xiao; Jiuran Zhao; Fengge Wang; Yonglian Zheng
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-11-30
Journal Detail:
Title:  Molecular genetics and genomics : MGG     Volume:  288     ISSN:  1617-4623     ISO Abbreviation:  Mol. Genet. Genomics     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-02-04     Completed Date:  2013-03-28     Revised Date:  2013-06-04    
Medline Journal Info:
Nlm Unique ID:  101093320     Medline TA:  Mol Genet Genomics     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  21-37     Citation Subset:  IM    
National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, People's Republic of China.
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MeSH Terms
Chromosome Mapping
Gene Expression Profiling*
Gene Expression Regulation, Plant
Gene Regulatory Networks
Glutathione Transferase / metabolism
Host-Pathogen Interactions / genetics,  immunology
Lignin / metabolism
Molecular Sequence Annotation
Plant Diseases / genetics*,  immunology,  microbiology
Plant Roots / genetics*,  immunology,  microbiology
Reactive Oxygen Species / metabolism
Transcription, Genetic
Ustilaginales / physiology*
Zea mays / genetics*,  immunology,  microbiology
Reg. No./Substance:
0/Reactive Oxygen Species; 9005-53-2/Lignin; EC Transferase
Erratum In:
Mol Genet Genomics. 2013 Apr;288(3-4):205

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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