ArticleBMC plant biology2015
The strigolactone biosynthesis gene DWARF27 is co-opted in rhizobium symbiosis.
Article in BMC plant biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.
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46 citing papers in PubMed, 115 citations in OpenAlex.
- Spatiotemporal dynamics of ethylene biosynthesis shape infection and nodule initiation in Medicago truncatula.The Plant cell · 2026Article
- Catalytic mechanism for β-carotene isomerisation and substrate selectivity by the strigolactone biosynthetic enzymes D27 and D27like1.Scientific reports · 2026Article
- Ameliorative effects of strigolactone on tolerance to lead stress on lettuce (Lactuca sativa L.) plants.Scientific reports · 2025Article
- Ethylene promotes SMAX1 accumulation to inhibit arbuscular mycorrhiza symbiosis.Nature communications · 2025Article
- Differential symbiotic compatibilities between rhizobium strains and cultivated and wild soybeans revealed by anatomical and transcriptome analyses.Frontiers in plant science · 2024Article
- Signaling in Legume-Rhizobia Symbiosis.International journal of molecular sciences · 2023Review
- Plants Recruit Peptides and Micro RNAs to Regulate Nutrient Acquisition from Soil and Symbiosis.Plants (Basel, Switzerland) · 2023Review
- Strigolactones in Plants and Their Interaction with the Ecological Microbiome in Response to Abiotic Stress.Plants (Basel, Switzerland) · 2022Review
- Different color regulation mechanism in willow barks determined using integrated metabolomics and transcriptomics analyses.BMC plant biology · 2022Article
- Whole Genome Analysis of SLs Pathway Genes and Functional Characterization ofInternational journal of molecular sciences · 2022Article
- Nutrient regulation of lipochitooligosaccharide recognition in plants via NSP1 and NSP2.Nature communications · 2022Article
- A mutant-based analysis of the establishment of Nod-independent symbiosis in the legume Aeschynomene evenia.Plant physiology · 2022Article
- Subfunctionalization of D27 Isomerase Genes in Saffron.International journal of molecular sciences · 2022Article
- Overexpression of Terpenoid Biosynthesis Genes Modifies Root Growth and Nodulation in Soybean (Cells · 2022Article
- Genome wide analysis of DWARF27 genes in soybean and functional characterization of GmD27c reveals eminent role of strigolactones in rhizobia interaction and nodulation in Glycine max.Molecular biology reports · 2022Article
- Knockdown ofPeerJ · 2022Article
- Effects of Strigolactone onFrontiers in plant science · 2022Article
- Synthetic Strigolactone GR24 ImprovesPlants (Basel, Switzerland) · 2021Article
- Involvement of strigolactone hormone in root development, influence and interaction with mycorrhizal fungi in plant: Mini-review.Current research in microbial sciences · 2021Review
- Medicago SPX1 and SPX3 regulate phosphate homeostasis, mycorrhizal colonization, and arbuscule degradation.The Plant cell · 2021Article
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundStrigolactones are a class of plant hormones whose biosynthesis is activated in response to phosphate starvation. This involves several enzymes, including the carotenoid cleavage dioxygenases 7 (CCD7) and CCD8 and the carotenoid isomerase DWARF27 (D27). D27 expression is known to be responsive to phosphate starvation. In Medicago truncatula and rice (Oryza sativa) this transcriptional response requires the GRAS-type proteins NSP1 and NSP2; both proteins are essential for rhizobium induced root nodule formation in legumes. In line with this, we questioned whether MtNSP1-MtNSP2 dependent MtD27 regulation is co-opted in rhizobium symbiosis.
resultsWe provide evidence that MtD27 is involved in strigolactone biosynthesis in M. truncatula roots upon phosphate stress. Spatiotemporal expression studies revealed that this gene is also highly expressed in nodule primordia and subsequently becomes restricted to the meristem and distal infection zone of a mature nodules. A similar expression pattern was found for MtCCD7 and MtCCD8. Rhizobium lipo-chitooligosaccharide (LCO) application experiments revealed that of these genes MtD27 is most responsive in an MtNSP1 and MtNSP2 dependent manner. Symbiotic expression of MtD27 requires components of the symbiosis signaling pathway; including MtDMI1, MtDMI2, MtDMI3/MtCCaMK and in part MtERN1. This in contrast to MtD27 expression upon phosphate starvation, which only requires MtNSP1 and MtNSP2.
conclusionOur data show that the phosphate-starvation responsive strigolactone biosynthesis gene MtD27 is also rapidly induced by rhizobium LCO signals in an MtNSP1 and MtNSP2-dependent manner. Additionally, we show that MtD27 is co-expressed with MtCCD7 and MtCCD8 in nodule primordia and in the infection zone of mature nodules.
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