Legume Nitrogen Fixing Symbiosis

Nissolia brasiliensis as a non-nodulating model legume

This paper presents the first chromosome-level genome assembly of a non-nodulating legume, Nissolia brasiliensis, and identifies genes associated with root nodule symbiosis.

Small Extra-Large GTPase-like proteins influence rhizobial symbiosis in Lotus japonicus

This study identifies small XLG homologs in Lotus japonicus that may influence rhizobial and mycorrhizal symbiosis through potential roles in membrane reorganization and transcriptional regulation.

Genetic variation in host selectivity and adaptive strain enrichment within legume-rhizobia symbiosis: processes are host-dependent, far from perfect, and correlate with nodule morphology

The paper examines host selectivity and adaptive strain enrichment in legume-rhizobia symbiosis, finding host genetic variation affects strain selectivity and nodule morphology correlates with mutualism dynamics.

Unipolar polysaccharide-mediated attachment of the N2O-reducing bacterium Bradyrhizobium ottawaense SG09 to plant roots.

This study identifies a unipolar polysaccharide gene cluster in Bradyrhizobium ottawaense SG09 that mediates attachment to plant roots via single cellular poles.

Adaptation of Plasmid-ID Technology for Evaluation of N2-Fixing Effectiveness and Competitiveness for Root Nodulation in the Sinorhizobium-Medicago System

This study adapts Plasmid-ID technology to assess nitrogen-fixing effectiveness and competitiveness of Sinorhizobium strains in the Medicago system using Next-Generation Sequencing and GFP fluorescence.

PMA-qPCR: ACCELERATING THE MARKET RELEASE OF HIGH-QUALITY BRADYRHIZOBIUM DIAZOEFFICIENS INOCULANTS

The paper validates a PMA-qPCR assay for rapid and reliable quantification of viable Bradyrhizobium diazoefficiens in inoculants, achieving high efficiency and precision.

Autoregulation of cluster root and nodule development by white lupin CCR1 receptor-like kinase

The paper identifies CCR1 receptor-kinase as a negative regulator of cluster root and nodule development in white lupin, revealing a novel systemic pathway called AoDev that coordinates root organ development independently of symbiotic interactions.

The non-specific phospholipase C of common bean PvNPC4 modulates roots and nodule development

This study identifies PvNPC4, a non-specific phospholipase C in common bean, as a key regulator of root and nodule development during rhizobial symbiosis.

An approach to enhance symbiotic nitrogen fixation

This study identifies GBP1 as a gene that negatively regulates nitrogen fixation in legumes, showing that its inactivation enhances nitrogen fixation without affecting nodule development.

Plant genotype and microbial strain combinations strongly influence the transcriptome under heavy metal stress conditions

The paper investigates how plant genotype and microbial strain combinations influence transcriptome responses to heavy metal stress, finding that Hg-tolerant rhizobia reduce stress effects in host plants.

Bacterial communities associated with food-quality winter pea cultivars grown in Pacific Northwest soils

The paper examines bacterial communities associated with winter pea cultivars in Pacific Northwest soils, finding that root and nodule microbiomes are influenced by environmental factors and plant genotype.

Biogeographic and genomic signatures of thermal adaptation in facultative rhizobia

The paper examines thermal adaptation in rhizobia by analyzing genomic and growth data from Sinorhizobium strains in different temperature regions, finding that thermal constraints and gene flow shape their distribution.

The subunit 3 of the SUPERKILLER (SKI) complex mediates miR172-directed cleavage of Nodule Number Control 1 (NNC1) to modulate nodulation in Medicago truncatula

The paper shows that MtSKI3 mediates miR172 cleavage of MtNNC1, regulating nodulation in Medicago truncatula by affecting nodule number and bacterial infection.

Re-evaluation of the nodulation capacity of Sphingomonas sediminicola DSM 18106T indicates that this strain is not capable of inducing root nodule formation on Pisum sativum (pea)

This paper re-evaluates the nodulation capacity of Sphingomonas sediminicola DSM 18106T and finds it cannot induce root nodule formation on pea, contradicting a previous study.

Correlating phylogenetic and functional diversity of the nod-free but nodulating Bradyrhizobium phylogroup

The paper expands the diversity of nod-free Bradyrhizobium strains and shows that NF-independent nodulation is common in this supergroup.

Transcriptional dynamics of nitrogen fixation and senescence in soybean nodules: A dual perspective on host and Bradyrhizobium regulation.

This study examines transcriptional changes in soybean nodules and Bradyrhizobium during nitrogen fixation and senescence, identifying gene and microRNA biomarkers and regulatory patterns.

TML1 AND TML2 SYNERGISTICALLY REGULATE NODULATION AND AFFECT ARBUSCULAR MYCORRHIZA IN MEDICAGO TRUNCATULA

This study investigates the role of MtTML1 and MtTML2 in nodulation and arbuscular mycorrhiza in M. truncatula, finding that their mutations lead to increased nodules and a synergistic effect.

Elevated rates of molecular evolution genome-wide in mutualist legumes and rhizobia

This study compares molecular evolution rates between mutualistic and non-mutualistic legumes and rhizobia, finding elevated rates in mutualists but stagnant evolution in symbiosis genes.

Nitrogen enrichment alters selection on rhizobial genes

The paper investigates how nitrogen enrichment affects gene fitness in rhizobia during symbiosis with alfalfa, identifying specific gene functions and pathways impacted by elevated nitrogen levels.

Small heat shock proteins (sHSPs) identified in nodules of tropical woody legumes.

The paper identifies small heat shock proteins (sHSPs) in nodules of tropical legumes to study their heat response mechanisms under temperature stress.

Temperature and host plant ecotype drive nitrogen fixation, but not nodule community composition, in hairy

This study examines how temperature and host plant ecotype affect nitrogen fixation in hairy vetch but finds no impact on nodule-associated Rhizobium leguminosarum biovar viciae community composition.

Bradyrhizobium hardenbergiae sp. nov., isolated from Hardenbergia violacea in Australia, represents a novel basal lineage of the B. elkanii supergroup

The paper describes a new Bradyrhizobium species, Bradyrhizobium hardenbergiae, isolated from Australian legumes, based on genomic and phylogenetic analyses.

Mimosa species endemic to acidic soils in central Brazil are nodulated by a high diversity of Paraburkholderia genotypes, but widespread species are nodulated by Paraburkholderia, Cupriavidus or Rhizobium depending on soil characteristics

This study examines the rhizobia symbionts of Mimosa species in Brazil, finding that endemic species are dominated by Paraburkholderia, while widespread species like M. pudica have a broader range of symbionts including Cupriavidus and Rhizobium, influenced by soil characteristics.

Nitrate reductase activity is required in Medicago truncatula-Sinorhizobium meliloti nitrogen-fixing symbiosis

This study shows that nitrate reductase activity is essential for the nitrogen-fixing symbiosis between Medicago truncatula and Sinorhizobium meliloti, as evidenced by impaired nodulation in a double mutant.

Identifying functional multi-host shuttle plasmids to advance synthetic biology applications in Mesorhizobium and Bradyrhizobium

The paper develops genetic tools for Mesorhizobium and Bradyrhizobium, including multi-host shuttle plasmids and conjugation protocols, to enhance synthetic biology applications in nitrogen-fixing bacteria.

RhizoBindingSites v2.0 is a bioinformatic database of DNA motifs potentially involved in transcriptional regulation deduced from sites of the itself genome

The paper updates RhizoBindingSites with S-matrices derived from O-matrices, showing improved gene detection and TF coverage compared to the original database.

Independent component analysis reveals the transcriptional regulatory modules in Bradyrhizobium diazoefficiens USDA110

This study uses independent component analysis to identify transcriptional regulatory modules in Bradyrhizobium diazoefficiens USDA110, revealing insights into gene regulation and environmental adaptation.

Microscopic and ultramicroscopic anatomical characteristics of root nodules in Podocarpus macrophyllus during development

This study examines the morphological and structural changes in root nodules of Podocarpus macrophyllus during development using microscopy techniques and compares them to leguminous and nonleguminous nodules.

Computationally reconstructed interactome of Bradyrhizobium diazoefficiens USDA110 reveals novel functional modules and protein hubs for symbiotic nitrogen fixation

Asymmetric Redundancy of Soybean Nodule Inception (NIN) Genes in Root Nodule Symbiosis

The paper investigates the roles of four NIN genes in soybean root nodule symbiosis, finding functional redundancy and differential contributions among the genes.