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The beet cyst nematode Heterodera schachtii modulates the expression of WRKY transcription factors in syncytia to favour its development in a Arabidopsis roots
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Ali, Muhammad Amjad, Wieczorek, Krzysztof, Kreil, David and Bohlmann, Holger (2014) The beet cyst nematode Heterodera schachtii modulates the expression of WRKY transcription factors in syncytia to favour its development in a Arabidopsis roots. PLoS One, Volume 9 (Number 7). Article number e102360. doi:10.1371/journal.pone.0102360
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Official URL: http://dx.doi.org/10.1371/journal.pone.0102360
Abstract
Cyst nematodes invade the roots of their host plants as second stage juveniles and induce a syncytium which is the only source of nutrients throughout their life. A recent transcriptome analysis of syncytia induced by the beet cyst nematode Heterodera schachtii in Arabidopsis roots has shown that thousands of genes are up-regulated or down-regulated in syncytia as compared to root segments from uninfected plants. Among the down-regulated genes are many which code for WRKY transcription factors. Arabidopsis contains 66 WRKY genes with 59 represented by the ATH1 GeneChip. Of these, 28 were significantly down-regulated and 6 up-regulated in syncytia as compared to control root segments. We have studied here the down-regulated genes WRKY6, WRKY11, WRKY17 and WRKY33 in detail. We confirmed the down-regulation in syncytia with promoter::GUS lines. Using various overexpression lines and mutants it was shown that the down-regulation of these WRKY genes is important for nematode development, probably through interfering with plant defense reactions. In case of WRKY33, this might involve the production of the phytoalexin camalexin.
| Item Type: | Journal Article | ||||||||
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| Subjects: | Q Science > QK Botany Q Science > QL Zoology |
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| Divisions: | Faculty of Science > Life Sciences (2010- ) | ||||||||
| Library of Congress Subject Headings (LCSH): | Sugar beet cyst nematode, Transcription factors, Arabidopsis -- Genetics | ||||||||
| Journal or Publication Title: | PLoS One | ||||||||
| Publisher: | Public Library of Science | ||||||||
| ISSN: | 1932-6203 | ||||||||
| Official Date: | 17 July 2014 | ||||||||
| Dates: |
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| Volume: | Volume 9 | ||||||||
| Number: | Number 7 | ||||||||
| Article Number: | Article number e102360 | ||||||||
| DOI: | 10.1371/journal.pone.0102360 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Open Access | ||||||||
| Funder: | Fonds zur FoĢrderung der Wissenschaftlichen Forschung (Austria) (FWF) | ||||||||
| Grant number: | P20471-B11 (FWF) | ||||||||
| Related URLs: |
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