A5073002566- Ionosphere and magnetosphere dynamics
- Earthquake Detection and Analysis
- Seismic Waves and Analysis
- Methane Hydrates and Related Phenomena
- Astrophysics and Cosmic Phenomena
- Geophysics and Gravity Measurements
- Solar and Space Plasma Dynamics
- Mycorrhizal Fungi and Plant Interactions
- Legume Nitrogen Fixing Symbiosis
- Plant nutrient uptake and metabolism
- Plant Parasitism and Resistance
- Photosynthetic Processes and Mechanisms
- Plant Molecular Biology Research
- Plant biochemistry and biosynthesis
- Metabolomics and Mass Spectrometry Studies
- Genomics and Phylogenetic Studies
- Botanical Research and Chemistry
- Plant tissue culture and regeneration
- Light effects on plants
- HIV/AIDS Research and Interventions
- Agronomic Practices and Intercropping Systems
- Reproductive tract infections research
- Plant-Microbe Interactions and Immunity
- Adolescent Sexual and Reproductive Health
- Genetic and Environmental Crop Studies
Donald Danforth Plant Science Center
2021-2025
Ithaca College
2015-2023
Cornell University
2012-2023
University of Oxford
2008-2009
Universidad Nacional Autónoma de México
2007
Summary During arbuscular mycorrhizal symbiosis (AMS), considerable amounts of lipids are generated, modified and moved within the cell to accommodate fungus in root, it has also been suggested that delivered fungus. To determine mechanisms by which root cells redirect lipid biosynthesis during AMS we analyzed roles two biosynthetic enzymes (FatM RAM2) an ABC transporter (STR) required for conserved uniquely plants engage AMS. Complementation analyses indicated biochemical function FatM...
During arbuscular mycorrhizal (AM) symbiosis, the plant gains access to phosphate (Pi) and nitrogen delivered by its fungal symbiont. Transfer of mineral nutrients occurs at interface between branched hyphae called arbuscules root cortical cells. In Medicago truncatula, a Pi transporter, PT4, is required for symbiotic transport, in pt4, transport fails, degenerate prematurely, symbiosis not maintained. Premature arbuscule degeneration (PAD) suppressed when pt4 mutants are nitrogen-deprived,...
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,...
During arbuscular mycorrhizal symbiosis, arbuscule development in the root cortical cell and simultaneous deposition of plant periarbuscular membrane generate interface for symbiotic nutrient exchange. The transcriptional changes that accompany are extensive well documented. By contrast, regulators control these programs largely unknown. Here, we provide a detailed characterization an insertion allele Medicago truncatula Reduced Arbuscular Mycorrhiza1 (RAM1), ram1-3, which reveals RAM1 is...
* The development of photosynthetic competence is a key requirement for all land plants and many aquatic algae. Previous work has demonstrated that pair Golden2-like (GLK) transcription factors regulates chloroplast in diverse plants, recessive glk1;glk2 mutants are pale green fail to accumulate components the light-harvesting machinery. To determine extent which GLK pathway diverged we compared gene function flowering plant Arabidopsis thaliana moss Physcomitrella patens. Cross-species...
Arbuscular mycorrhizal (AM) symbiosis is a mutually beneficial association of plants and fungi the subphylum Glomeromycotina. Endosymbiotic AM colonize inner cortical cells roots, where they form branched hyphae called arbuscules that function in nutrient exchange with plant. To support arbuscule development subsequent bidirectional exchange, root undergo substantial transcriptional reprogramming. REDUCED ARBUSCULAR MYCORRHIZA1 (RAM1), previously studied several dicot plant species, major...
Plant responses to environmental change are mediated via changes in cellular metabolomes. However, <5% of signals obtained from liquid chromatography tandem mass spectrometry (LC-MS/MS) can be identified, limiting our understanding how metabolomes under biotic/abiotic stress. To address this challenge, we performed untargeted LC-MS/MS leaves, roots, and other organs Brachypodium distachyon (Poaceae) 17 organ-condition combinations, including copper deficiency, heat stress, low phosphate,...
cDNA corresponding to the Arabidopsis type I metacaspase AtMCP1b was isolated from plants infected with Pseudomonas syringae. A positive correlation between expression and cell death observed in presence of staurosporine, a protein kinase inhibitor that induces programmed death. The tissue localisation an promoter-GUS fusion vascular transgenic plants. GUS activity increased response incompatible DC3000 (avrRpm1) or compatible P. syringae infection, wounding. Confocal immunohistochemical...
The mutualistic arbuscular mycorrhizal (AM) symbiosis arose in land plants more than 450 million years ago and is still widely found all major plant lineages. Despite its broad taxonomic distribution, little known about the molecular components underpinning outside of flowering plants. ARBUSCULAR RECEPTOR-LIKE KINASE (ARK) required for sustaining AM distantly related angiosperms. Here, we demonstrate that ARK has an equivalent role maintenance bryophyte
Journal Article Lab-based X-ray Microscopy for in situ 3D Visualization of Mycorrhizal Fungal Structures Associated with Roots Get access Keith Duncan, Duncan Donald Danforth Plant Science Center, St. Louis, MO, USA Corresponding author: KDuncan@DanforthCenter.org Search other works by this author on: Oxford Academic Google Scholar Clara Lebow, Lebow Dierdra Daniels, Daniels Valent BioSciences LLC, Biorational Research Libertyville, IL, Melette DeVore, DeVore Armando Bravo, Bravo Daniela...