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Showing 1 to 20 of 37 for “"Medicago truncatula"”.
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Gene Expression Profiling of the nip Mutant in Medicago truncatula
… isolated a mutant called nip in the model legume Medicago truncatula that is defective in nodule symbiosis. The nip mutant (numerous infections with polyphenolics) becomes infected by Sinorhizobium meliloti but then accumulates polyphenolic defense compounds in the nodule and fails to progress to …
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Map-based cloning of the NIP gene in model legume Medicago truncatula.
… reduces atmospheric nitrogen to ammonia. Medicago truncatula is the model legume plant that is used to study symbiosis with mycorrhiza and with the bacteria Sinorhizobium meliloti. The focus of this work is the M. truncatula nodulation mutant nip (numerous infections and polyphenolics). …
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Analysis of Medicago truncatula transcription factors involved in the arbuscular mycorrhizal symbiosis
… Capture Mirodissection and Affymetrix GeneChip® Medicago genome array hybridization. The establishment of cryosections facilitated the isolation of high quality RNA in sufficient amounts from three different cortical cell types. The transcript profiles of arbuscule-containing cells (arb cells), …
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MtCEP1 peptides regulate lateral organ development in the model legume, Medicago truncatula
… MtCEP1, is studied in the model legume, Medicago truncatula, for its regulation of nitrogen-mediated root development, most particularly, lateral root and nodule formation. The MtCEP1 peptide-encoding gene is upregulated by low nitrogen condition, an environmental cue which strongly …
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MtCEP1 peptides regulate lateral organ development in the model legume, Medicago truncatula
… MtCEP1, is studied in the model legume, Medicago truncatula, for its regulation of nitrogen-mediated root development, most particularly, lateral root and nodule formation. The MtCEP1 peptide-encoding gene is upregulated by low nitrogen condition, an environmental cue which strongly …
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Phosphate homeostasis and posttranscriptional gene regulation during arbuscular mycorrhizal symbiosis in Medicago truncatula
… posttranscriptional gene regulation in M. truncatula mycorrhizal roots. Degradome analysis revealed that 185 transcripts were cleaved by miRNAs, of which the majority encoded transcription factors and disease resistance genes, suggesting a tight control of transcriptional reprogramming and …
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Defining the mechanisms of specificity in the symbiosis signalling pathway of Medicago truncatula
… signalling pathway. Detailed analysis of Medicago truncatula gene expression in response to rhizobial and mycorrhizal LCOs reveals relatively little overlap in gene induction. The nodulation-specific marker NIN was induced by both rhizobial and sulphated mycorrhizal LCOs. However, the …
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Functional analysis of candidate flowering time genes from the model legume Medicago truncatula
… understood than in the Brassicaceae and Poaceae. Medicago truncatula (Medicago) is a legume model plant with powerful genetic resources and which flowers in response to long day length and vernalisation (winter cold) conditions. A putative Medicago Polycomb Repressive Complex 2 (PRC2) subunit …
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Identifizierung und funktionelle Charakterisierung von für die arbuskuläre Mykorrhizasymbiose spezifischen Genen in Medicago truncatula
… dieser Arbeit. Als Modellorganismen wurden Medicago truncatula und Glomus intraradices verwendet. Es wurden Transkriptionsanalysen durchgeführt um u.a. AMS regulierte Transkriptions- faktoren (TFs) zu identifizieren. Die Aktivität der Promotoren von drei der so identifizier-ten …
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The Effects Of Clinorotation In The Host Plant, Medicago Truncatula, And Its Microbial Symbionts
… utilized the model tripartite relationship among Medicago truncatula–Sinorhizobium meliloti–Rhizophagus irregularis. Plants were inoculated with rhizobial bacteria (S. meliloti), arbuscular mycorrhizal fungi (R. irregularis), both microbes, or none (microbial control), and placed on a rotating …
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Investigating key regulators of nitrogen demand signalling and symbiotic nitrogen fixation in Medicago truncatula
… mediated AON pathway in the model legume Medicago truncatula. RNA sequencing of CLE13-TaP treated M. truncatula plants revealed numerous genes potentially involved in nodulation. Agrobacterium rhizogenes-mediated reverse genetic approaches were carried out for significantly upregulated …
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A Comparative Study of Medicago truncatula Transcriptomes as They Relate to Saponin Defenses Against Insect Pests
… exigua, following ad</p> <p>libero feeding on Medicago truncatula accessions differing in specialized metabolite and</p> <p>saponin profiles. Insect performance did not directly relate to the foliar saponin levels in the</p> <p>accessions, which was measured using HPLC mass spectrometry. …
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Analysis of gene expression, regulation and function of three symbiotic ABC subfamily-B transporters in Medicago truncatula
The legume M. truncatula overcomes low soil nutrient conditions by forming symbiotic associations with nitrogen-fixing soil bacteria called rhizobia (Root Nodule Symbiosis) and fungi which assist in the acquisition of phosphate, collectively called arbuscular mycorrhizae (Arbuscular Mycorrhizal …
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Characterisation and expression of Receptor-like Cytoplasmic Kinases in Medicago truncatula during Rhizobial and Arbuscular Mycorrhizal symbioses
… bacteria known as rhizobia. Studies using mutant Medicago truncatula and Lotus japonicus have identified many genes that are necessary for this mutualism. Some of these genes have also been shown to be necessary for symbiosis with arbuscular mycorrhiza fungi (AMF). These common genes make up part …
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Identifying genes related to symbiotic nitrogen fixation in Medicago truncatula Tnt1 insertion mutants using a forward genetics approach
… To date, over 21,000 Tnt1 mutant lines of Medicago truncatula, a model legume used for genetic research, have been created. Several lines displaying defects in symbiotic nitrogen fixation (SNF) have been identified and are referred to as Fix- mutants. In this research, segregation analysis …
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Phosphate homeostasis and novel microRNAs are involved in the regulation of the arbuscular mycorrhizal symbiosis in Medicago truncatula
… Ortholog von PHO2, MtPho2, wurde in der Pflanze Medicago truncatula identifiziert. MtPho2-Mutanten, welche nicht mehr in der Lage waren ein funktionales PHO2 Protein zu exprimieren, zeigten schnellere Kolonisierung durch den AM-Pilz. Jedoch wurde auch in den mtpho2-Mutanten die Symbiose durch …
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Physical Map between Marker 8O7 and 146O17 on the Medicago truncatula Linkage Group 1 that Contains the NIP Gene
The Medicago truncatula NIP gene is located on M. truncatula Linkage Group 1. Informative recombinants showed crossovers that localize the NIP gene between markers 146O17 and 23C16D. Marker 164N9 co-segregates with the NIP gene, and the location of marker 164N9 is between markers 146O17 and 23C16D. …
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Análise comparativa de transposons classe II (CACTA e Mutator) nos genomas de Vigna unguiculada, Phaseolus vulgaris e Medicago truncatula
… como Vigna unguiculata, Phaseolus vulgaris e Medicago truncatula é parte importante do conhecimento da influência destes nos genomas vegetais. Usando ferramentas bioinformáticas baseadas em homologia, esse trabalho identificou um total de 5,64 Mb de transposons e 48,42 Mb de retrotransposons, …
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Dissecting the NCR Peptide Landscape in the R108 Ecotype in Medicago Truncatula and the Search for the NF21325 Symbiotic Mutant
… nitrogen into bioavailable ammonium. In Medicago truncatula, nearly 700 Nodule-specific Cysteine-Rich (NCR) peptides regulate this process. This study investigates the R108 mutant line NF21325, featuring a Tnt1 insertion in MtNCR113. Inconsistent genotype-phenotype correlations and …
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Roles and Interplay of Flavonoids, Reactive Oxygen Species, and Cytokinin in the Early Infection of Medicago truncatula by Sinorhizobium meliloti
… of rhizobia in the roots of the model legume Medicago truncatula. Infection of Medicago roots is driven by the production of 'infection threads' by the plant. Infection threads are infection structures that are unique to nitrogen-fixing symbioses, and critical to our understanding of the …
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