A5025707602- Mycorrhizal Fungi and Plant Interactions
- Plant Gene Expression Analysis
- Plant Molecular Biology Research
- Ecology and Vegetation Dynamics Studies
- Legume Nitrogen Fixing Symbiosis
- Plant responses to water stress
- Berry genetics and cultivation research
- Plant Parasitism and Resistance
- Plant and animal studies
- Genomics and Chromatin Dynamics
- Plant nutrient uptake and metabolism
- Bioenergy crop production and management
- Horticultural and Viticultural Research
- Genetic Mapping and Diversity in Plants and Animals
- Botany and Plant Ecology Studies
- Plant Physiology and Cultivation Studies
- Plant-Microbe Interactions and Immunity
- Postharvest Quality and Shelf Life Management
- Plant Pathogens and Resistance
- Plant Disease Management Techniques
- Forest Ecology and Biodiversity Studies
- Plant Disease Resistance and Genetics
- Plant Stress Responses and Tolerance
- Plant Pathogens and Fungal Diseases
University of California, Davis
2021-2024
University of California, Berkeley
2018-2022
Plant (United States)
2022
Significance Drought remains a critical obstacle to meeting the food demands of coming century. Understanding interplay between drought stress, plant development, and microbiome is central this challenge. Here, we demonstrate that causes enrichment distinct set microbes in roots, composed almost entirely monoderms, which lack outer membranes have thick cell walls. We under drought, roots increase production many metabolites, monoderms inhabiting drought-treated rhizosphere exhibit increased...
Abstract Community assembly of crop-associated fungi is thought to be strongly influenced by deterministic selection exerted the plant host, rather than stochastic processes. Here we use a simple, sorghum system with abundant sampling show that forces (drift or dispersal) act on fungal community in leaves and roots early host development when drought stressed, conditions mycobiomes are small. Unexpectedly, find no signal for stochasticity stress relieved, likely due renewed host. In our...
Plant response to drought stress involves fungi and bacteria that live on in plants the rhizosphere, yet stability of these myco- micro-biomes remains poorly understood. We investigate resistance resilience an agricultural system using both community composition microbial associations. Here we show tests fundamental hypotheses fungi, as compared bacteria, are (i) more resistant but (ii) less resilient when rewetting relieves stress, found robust support at level composition. Results were...
Drought is the most important environmental stress limiting crop yields. The C4 cereal sorghum [Sorghum bicolor (L.) Moench] a critical food, forage, and emerging bioenergy that notably drought-tolerant. We conducted large-scale field experiment, imposing preflowering postflowering drought on 2 genotypes of across tightly resolved time series, from plant emergence to postanthesis, resulting in dataset nearly 400 transcriptomes. observed fast global transcriptomic response leaf root tissues...
Abstract Recent studies have demonstrated that drought leads to dramatic, highly conserved shifts in the root microbiome. At present, molecular mechanisms underlying these responses remain largely uncharacterized. Here we employ genome-resolved metagenomics and comparative genomics demonstrate carbohydrate secondary metabolite transport functionalities are overrepresented within drought-enriched taxa. These data also reveal bacterial iron metabolism functionality is correlated with...
Abstract The ecology of fungi lags behind that plants and animals because most are microscopic hidden in their substrates. Here, we address the basic ecological process fungal succession nature using microscopic, arbuscular mycorrhizal (AMF) form essential mutualisms with 70–90% plants. We find a signal for temporal change AMF community similarity is 40-fold stronger than seen recent studies, likely due to weekly samplings roots, rhizosphere soil throughout 17 weeks from seedling fruit...
The challenge of allelic diversity for assembling haplotypes is exemplified in polyploid genomes containing homoeologous chromosomes identical ancestry, and significant homologous variation within their ancestral subgenomes. Cultivated strawberry ( Fragaria × ananassa ) its wild progenitors are outbred octoploids (2n = 8x 56) which up to eight alleles preserved. This introduces risk haplotype collapse, switching, chimeric fusions during assembly. Using third generation HiFi sequences from...
Renewable fuels are needed to replace fossil in the immediate future. Lignocellulosic bioenergy crops provide a renewable alternative that sequesters atmospheric carbon. To prevent displacement of food crops, it would be advantageous grow biofuel on marginal lands. These lands will likely face more frequent and extreme drought conditions than conventional agricultural land, so is crucial see how proposed fare under these may affect lignocellulosic biomass composition saccharification...
Abstract Wildtype fruit of cultivated strawberry (Fragaria × ananassa) are typically soft and highly perishable when fully ripe. The development firm-fruited cultivars by phenotypic selection has greatly increased shelf life, decreased post-harvest perishability, driven the expansion production worldwide. Hypotheses for phenotype include mutations affecting expression genes encoding polygalacturonases that soften degrading cell wall pectins. Here we show loss-of-function in softening gene...
Histones belong to a family of highly conserved proteins in eukaryotes. They pack DNA into nucleosomes as functional units chromatin. Post-translational modifications (PTMs) histones, which are dynamic and can be added or removed by enzymes, play critical roles regulating gene expression. In plants, epigenetic factors, including histone PTMs, related their adaptive responses the environment. Understanding molecular mechanisms control bring unprecedented opportunities for innovative...
Holistic assessment of fruit quality is an essential component producing Strawberry varieties that will succeed in the marketplace and improve consumer satisfaction. However, several key quantitative traits are notoriously slow expensive to assess using standard procedures, namely acidity aroma, which require titration gas chromatography mass spectroscopy compared others: brix, anthocyanins, vitamin C, measured by refractometer parallelized plate reader assays. Scaling up evaluations for...
Histones belong to a family of highly conserved proteins in eukaryotes. They pack DNA into nucleosomes as functional units chromatin. Post-translational modifications (PTMs) histones, which are dynamic and can be added or removed by enzymes, play critical roles regulating gene expression. In plants, epigenetic factors, including histone PTMs, related their adaptive responses the environment. Understanding molecular mechanisms control bring unprecedented opportunities for innovative...