Spatial and temporal expression patterns of auxin response transcription factors in the syncytium induced by the beet cyst nematodeHeterodera schachtiiin Arabidopsis
| Autor: | Geoffrey Richard, Tarek Hewezi, Sarbottam Piya, J Hollis Rice |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Regulation of gene expression
chemistry.chemical_classification Syncytium biology viruses virus diseases Soil Science Plant Science biochemical phenomena metabolism and nutrition biology.organism_classification Phenotype Cell biology chemistry Auxin Arabidopsis Botany Gene expression Agronomy and Crop Science Molecular Biology Heterodera schachtii Transcription factor |
| Zdroj: | Molecular Plant Pathology. 15:730-736 |
| ISSN: | 1464-6722 |
| DOI: | 10.1111/mpp.12121 |
| Popis: | Plant-parasitic cyst nematodes induce the formation of a multinucleated feeding site in the infected root, termed the syncytium. Recent studies point to key roles of the phytohormone auxin in the regulation of gene expression and establishment of the syncytium. Nevertheless, information about the spatiotemporal expression patterns of the transcription factors that mediate auxin transcriptional responses during syncytium formation is limited. Here, we provide a gene expression map of 22 auxin response factors (ARFs) during the initiation, formation and maintenance stages of the syncytium induced by the cyst nematode Heterodera schachtii in Arabidopsis. We observed distinct and overlapping expression patterns of ARFs throughout syncytium development phases. We identified a set of ARFs whose expression is predominantly located inside the developing syncytium, whereas others are expressed in the neighbouring cells, presumably to initiate specific transcriptional programmes required for their incorporation within the developing syncytium. Our analyses also point to a role of certain ARFs in determining the maximum size of the syncytium. In addition, several ARFs were found to be highly expressed in fully developed syncytia, suggesting a role in maintaining the functional phenotype of mature syncytia. The dynamic distribution and overlapping expression patterns of various ARFs seem to be essential characteristics of ARF activity during syncytium development. |
| Databáze: | OpenAIRE |
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