A5020345155- Legume Nitrogen Fixing Symbiosis
- Plant nutrient uptake and metabolism
- Nematode management and characterization studies
- Astrophysics and Star Formation Studies
- Agronomic Practices and Intercropping Systems
- Astrophysics and Cosmic Phenomena
- Astronomical Observations and Instrumentation
- Mycorrhizal Fungi and Plant Interactions
- Radio Astronomy Observations and Technology
- Stellar, planetary, and galactic studies
- Geophysics and Gravity Measurements
- Soybean genetics and cultivation
- Plant Molecular Biology Research
- Spectroscopy and Laser Applications
- Plant Parasitism and Resistance
- Astronomy and Astrophysical Research
- Plant pathogens and resistance mechanisms
- Agricultural pest management studies
- Plant-Microbe Interactions and Immunity
- Galaxies: Formation, Evolution, Phenomena
- Plant and animal studies
- Atmospheric Ozone and Climate
- Plant Micronutrient Interactions and Effects
- Scientific Research and Discoveries
- Astro and Planetary Science
Center for Excellence in Molecular Plant Sciences
2017-2025
Chinese Academy of Sciences
2017-2024
John Innes Centre
2014-2024
Norwich Research Park
2013-2024
Shanghai Institutes for Biological Sciences
2020-2022
Jilin Agricultural University
2022
Agriculture and Agri-Food Canada
2005-2021
London Research and Development Centre
2004-2021
Planta
2019-2020
Commonwealth Scientific and Industrial Research Organisation
1977-2016
Legumes (Fabaceae or Leguminosae) are unique among cultivated plants for their ability to carry out endosymbiotic nitrogen fixation with rhizobial bacteria, a process that takes place in specialized structure known as the nodule. belong one of two main groups eurosids, Fabidae, which includes most species capable fixation. comprise several evolutionary lineages derived from common ancestor 60 million years ago (Myr ago). Papilionoids largest clade, dating nearly origin legumes and containing...
Legumes played central roles in the development of agriculture and civilization, today account for approximately one-third world's primary crop production. Unfortunately, most cultivated legumes are poor model systems genomic research. Therefore, Medicago truncatula, which has a relatively small diploid genome, been adopted as species legume genomics. To enhance its value model, we have generated gene expression atlas that provides global view all major organ this species, with special...
In legumes, Nod-factor signaling by rhizobia initiates the development of nitrogen-fixing nodule symbiosis, but direct cell division stimulus that brings about primordia inception in root cortex remains obscure. We showed Lotus japonicus plants homozygous for a mutation HYPERINFECTED 1 ( HIT1 ) locus exhibit abundant infection-thread formation fail to initiate timely cortical divisions response rhizobial signaling. demonstrated corresponding gene encodes cytokinin receptor is required...
Nitrogen-fixing rhizobia colonize legume roots via plant-made intracellular infection threads. Genetics has identified some genes involved but not provided sufficient detail to understand requirements for thread development. Therefore, we transcriptionally profiled Medicago truncatula root hairs prior and during the initial stages of infection. This revealed changes in responses plant hormones, most notably auxin, strigolactone, gibberellic acid, brassinosteroids. Several auxin responsive...
Remorin proteins have been hypothesized to play important roles during cellular signal transduction processes. Induction of some members this multigene family has reported biotic interactions. However, no host-bacteria interactions assigned remorin until now. We used root nodule symbiosis between Medicago truncatula and Sinorhizobium meliloti study the a that is specifically induced nodulation. Here we show oligomeric protein attaches host plasma membrane surrounding bacteria controls...
view Abstract Citations (432) References (17) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Magellanic Stream. Mathewson, D. S. ; Cleary, M. N. Murray, J. A southern sky survey of H I in the velocity range -340 to +380 km/sec has shown that a long filament extends from region between Clouds down south galactic pole and connects with discovered recently by Wannier Wrixon van Kuilenburg. There is also some evidence this continues on other side crosses...
To allow rhizobial infection of legume roots, plant cell walls must be locally degraded for plant-made threads (ITs) to formed. Here we identify a Lotus japonicus nodulation pectate lyase gene (LjNPL), which is induced in roots and root hairs by (Nod) factors via activation the signaling pathway NIN transcription factor. Two Ljnpl mutants produced uninfected nodules most infections arrested as foci or roots. The few partially infected that did form contained large abnormal infections....
Lupins are important grain legume crops that form a critical part of sustainable farming systems, reducing fertilizer use and providing disease breaks. It has basal phylogenetic position relative to other crop model legumes high speciation rate. Narrow-leafed lupin (NLL; Lupinus angustifolius L.) is gaining popularity as health food, which in protein dietary fibre but low starch gluten-free. We report the draft genome assembly (609 Mb) NLL cultivar Tanjil, captured >98% gene content,...
Abstract Most land plants benefit from endosymbiotic interactions with mycorrhizal fungi, including legumes and some nonlegumes that also interact nitrogen (N)-fixing bacteria to form nodules. In addition these helpful interactions, are continuously exposed would-be pathogenic microbes: discriminating between friends foes is a major determinant of plant survival. Recent breakthroughs have revealed how key signals pathogens symbionts distinguished. Once this checkpoint has been passed...
Abstract Root-associated microbiomes contribute to plant growth and health, are dynamically affected by development changes in the soil environment. However, how different fertilizer regimes affect quantitative microbial assembly effect remains obscure. Here, we explore temporal dynamics of root-associated bacteria soybean using microbiome profiling (QMP) examine its response unbalanced treatments (i.e., lacking either N, P or K) role sustaining after four decades fertilization. We show that...
Understanding how numerous quantitative trait loci (QTL) shape phenotypic variation is an important question in genetics. To address this, we established a permanent population of 18,421 (18K) rice lines with reduced structure. We generated reference-level genome assemblies the founders and genotyped all 18K-rice through whole-genome sequencing. Through high-resolution mapping, 96 high-quality candidate genes contributing to 16 traits were identified, including
Legumes (Leguminosae or Fabaceae) play a major role in agriculture. Transcriptomics studies the model legume species, Medicago truncatula, are instrumental helping to formulate hypotheses about of genes. With rapid growth publically available Affymetrix GeneChip Genome Array data from great range tissues, cell types, conditions, and stress treatments, research community desires an effective bioinformatics system aid efforts interpret genome through functional genomics. We developed...
Intracellular invasion of root cells is required for the establishment successful endosymbioses in legumes both arbuscular mycorrhizal (AM) fungi and rhizobial bacteria. In interactions a requirement entry activation common signalling pathway that includes five genes to generate calcium oscillations two perception response. Recently, it has been discovered Medicago truncatula, Vapyrin (VPY) gene essential symbiosis. Here, we show by analyses mutants same also colonization nodulation. VPY...
Significance In certain legume–rhizobia symbioses, the host plant is thought to control terminal differentiation of its bacterial partner leading nitrogen fixation. Medicago truncatula , over 600 genes coding for nodule-specific cysteine-rich (NCR) peptides are expressed during nodule development and have been implicated in bacteroid differentiation. Up now it was generally assumed that most these peptides, if not all, act redundantly. By demonstrating deletion a single member NCR gene...
Medicago truncatula is a model legume forage crop native to the arid and semi-arid environments of Mediterranean. Given its drought-adapted nature, it an ideal candidate study molecular biochemical mechanisms conferring drought resistance in plants. plants were subjected progressive stress over 14 d water withholding followed by rewatering under controlled environmental conditions. Based on physiological measurements plant status changes morphology, experienced mild, moderate severe before...
Abstract Most plant species form symbioses with arbuscular mycorrhizal (AM) fungi, which facilitate the uptake of mineral nutrients such as phosphate from soil. Several transporters, particularly proton-coupled have been identified on both and fungal membranes contribute to delivering fungi plants. The mechanism nutrient exchange has studied in plants during colonization, but source electrochemical proton gradient that drives is not known. Here, we show plasma membrane H+-ATPases are...
There is an increasing need to develop high-yielding, disease-resistant crops and reduce fertilizer usage. Combining disease resistance with efficient nutrient assimilation through improved associations symbiotic microorganisms would help address this. Arbuscular mycorrhizal fungi (AMF) form relationships most terrestrial plants, resulting in nutritional benefits the enhancement of stress tolerance resistance. Despite these advantages, arbuscular (AM) interactions are not normally directly...
Lotus japonicus is a model species for legume genomics. To accelerate functional genomics, we developed Gene Expression Atlas (LjGEA), which provides global view of gene expression in all organ systems this species, including roots, nodules, stems, petioles, leaves, flowers, pods and seeds. Time-series data covering multiple stages developing pod seed are included the LjGEA. In addition, previously published L. Affymetrix database, making it 'one-stop shop' transcriptome analysis species....
The symbiotic infection of root cells by nitrogen-fixing rhizobia during nodulation requires the transcription factor Nodule Inception (NIN). Our hair transcriptomic study extends NIN's regulon to include Rhizobium Polar Growth and genes involved in cell wall modification, gibberellin biosynthesis, a comprehensive group nutrient (N, P, S) uptake assimilation genes, suggesting that recruitment was based on its role as growth module, shared with other NIN-Like Proteins. expression jasmonic...
Optimization of nitrogen fixation by rhizobia in legumes is a key area research for sustainable agriculture. Symbiotic (SNF) occurs specialized organs called nodules and depends on steady supply carbon to both plant bacterial cells. Here we report the functional characterization nodule-specific Suc transporter, MtSWEET11 from Medicago truncatula belongs clade SWEET proteins that are capable transporting play critical roles pathogen susceptibility. When expressed mammalian cells, transported...