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A plant chitinase controls cortical infection thread progression and nitrogen-fixing symbiosis
Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review
Dokumenter
- elife-38874-v2
Forlagets udgivne version, 4,33 MB, PDF-dokument
DOI
- https://doi.org/10.7554/eLife.38874
Forlagets udgivne version
- Anna Malolepszy ,
- Simon Kelly ,
- Kasper Kildegaard Sørensen, Københavns Universitet ,
- Euan Kevin James, The James Hutton Institute ,
- Christina Kalisch ,
- Zoltan Bozsoki ,
- Michael Panting
- Stig U Andersen
- Shusei Sato, Kazusa DNA Research Institute, Kisarazu, Chiba, Japan ,
- Ke Tao ,
- Dorthe Bødker Jensen ,
- Maria Vinther
- Noor de Jong
- Lene Heegaard Madsen ,
- Yosuke Umehara, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan. ,
- Kira Gysel
- Mette U Berentsen ,
- Michael Blaise ,
- Knud Jørgen Jensen, Københavns Universitet ,
- Mikkel B Thygesen, Københavns Universitet ,
- Niels Sandal
- Kasper Røjkjær Andersen
- Simona Radutoiu
Morphogens provide positional information and their concentration is key to the organized development of multicellular organisms. Nitrogen-fixing root nodules are unique organs induced by Nod factor-producing bacteria. Localized production of Nod factors establishes a developmental field within the root where plant cells are reprogrammed to form infection threads and primordia. We found that regulation of Nod factor levels by Lotus japonicus is required for the formation of nitrogen-fixing organs, determining the fate of this induced developmental program. Our analysis of plant and bacterial mutants shows that a host chitinase modulates Nod factor levels possibly in a structure-dependent manner. In Lotus, this is required for maintaining Nod factor signalling in parallel with the elongation of infection threads within the nodule cortex, while root hair infection and primordia formation are not influenced. Our study shows that infected nodules require balanced levels of Nod factors for completing their transition to functional, nitrogen-fixing organs.
| Originalsprog | Engelsk |
|---|---|
| Artikelnummer | 38874 |
| Tidsskrift | eLife |
| Vol/bind | 7 |
| Sider (fra-til) | 1-17 |
| Antal sider | 17 |
| ISSN | 2050-084X |
| DOI | |
| Status | Udgivet - okt. 2018 |
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