MicroRNA regulated defense responses in Triticum aestivum L. during Puccinia graminis f.sp. tritici infection
| Autor: | Shelly Praveen, Vipin Permar, Uday Dhari Singh, Vikas Koundal, Om Prakash Gupta |
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| Rok vydání: | 2011 |
| Předmět: |
Hypersensitive response
Regulation of gene expression Genetics biology Basidiomycota General Medicine Cellular defense response R gene Stem rust biology.organism_classification Polymerase Chain Reaction MicroRNAs Plant Growth Regulators Gene Expression Regulation Plant microRNA Signal transduction Molecular Biology Triticum Function (biology) Gene Library Plant Diseases Signal Transduction |
| Zdroj: | Molecular Biology Reports. 39:817-824 |
| ISSN: | 1573-4978 0301-4851 |
| DOI: | 10.1007/s11033-011-0803-5 |
| Popis: | Plants have evolved diverse mechanism to recognize pathogen attack and triggers defense responses. These defense responses alter host cellular function regulated by endogenous, small, non-coding miRNAs. To understand the mechanism of miRNAs regulated cellular functions during stem rust infection in wheat, we investigated eight different miRNAs viz. miR159, miR164, miR167, miR171, miR444, miR408, miR1129 and miR1138, involved in three different independent cellular defense response to infection. The investigation reveals that at the initiation of disease, accumulation of miRNAs might be playing a key role in hypersensitive response (HR) from host, which diminishes at the maturation stage. This suggests a possible host-fungal synergistic relation leading to susceptibility. Differential expression of these miRNAs in presence and absence of R gene provides a probable explanation of miRNA regulated R gene mediated independent pathways. |
| Databáze: | OpenAIRE |
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