A5073474728- Mycorrhizal Fungi and Plant Interactions
- Plant Pathogens and Fungal Diseases
- Lichen and fungal ecology
- Yeasts and Rust Fungi Studies
- Botany and Plant Ecology Studies
- Genomics and Phylogenetic Studies
- Botany, Ecology, and Taxonomy Studies
- Protist diversity and phylogeny
- Microbial Community Ecology and Physiology
- Fungal Biology and Applications
- Plant Diversity and Evolution
- Nematode management and characterization studies
- Plant and fungal interactions
- Plant Pathogens and Resistance
- Forest Ecology and Biodiversity Studies
University of Tennessee at Knoxville
2017-2025
Harvard University
2023-2025
Macroecological rules have been developed for plants and animals that describe large-scale distributional patterns attempt to explain the underlying physiological ecological processes behind them. Similarly, microorganisms exhibit in relative abundance, distribution, diversity, traits across space time, yet it remains unclear extent which follow macroecological initially macroorganisms. Additionally, usefulness of these as a null hypothesis when surveying has be fully evaluated. With rapid...
Following a late fall wildfire in 2016 the Great Smoky Mountains National Park, pyrophilous fungi burn zones were documented over 2-y period with respect to severity and phenology. Nuc rDNA internal transcribed spacer (ITS1-5.8S-ITS2 = ITS) barcodes obtained confirm morphological evaluations. Forty-one taxa of Ascomycota Basidiomycota identified from sites categorized as fruiting only response fire or enhanced by fire. Twenty-two species Pezizales (Ascomycota) among earliest form ascomata...
The nuclear ribosomal internal transcribed spacer (nrITS) region has been widely used in fungal diversity studies. Environmental metabarcoding increased the importance of DNA barcode documenting and distribution. gap is seen as difference between intra- inter-specific pairwise distances a barcode. current understanding macrofungi limited, inhibiting development best practices applying nrITS toward research on diversity. This study examined using 5146 sequences representing 717 species from...
Premise of the Study The Hymenochaetales are dominated by lignicolous saprotrophic fungi involved in wood decay. However, group also includes bryophilous and terricolous taxa, but their modes nutrition not clear. Here, we investigate patterns carbon nitrogen utilization numerous non‐lignicolous provide a phylogenetic context which these non‐canonical ecological guilds arose. Methods We combined stable isotope analyses δ 13 C 15 N to explore assignment evolution nutritional modes. Clustering...
Abstract Premise The agaricomycete order Cantharellales contains approximately 1000 species of fungi characterized by diverse morphological forms, ecological guilds, and nutritional modes. Examples include coralloid lichens that form symbioses with unicellular green algae, bulbil‐forming lichenicolous species, corticioid free‐living degrade dead sources organic carbon, pathogens cause plant disease, orchid root endosymbionts, ectomycorrhizal including popular edible mushrooms. However,...
Five species of Hydnum have been generally recognized from eastern North America based on morphological recognition: H.albidum, H.albomagnum, H.repandum and varieties, H.rufescens, H.umbilicatum. Other unique American species, such as H.caespitosum H.washingtonianum, are either illegitimately named or considered synonymous with European taxa. Here, seventeen phylogenetic detected a molecular survey ITS sequences herbarium collections GenBank data, including environmental sequences. Based...
The Inocybe geophylla group is circumscribed based on phylogenetic analysis of DNA sequences largely sampled from North America and Europe. Twenty-nine species are uncovered after combined nuc 28S rDNA (28S) RNA polymerase II second largest subunit (rpb2) sequence data. Species in the I. share presence a cortina, silky-fibrillose pileus stipe, pruinose stipe apex, spermatic odor, thick-walled hymenial cystidia, smooth amygdaliform or elliptical basidiospores. Within group, as many five...
Multi-locus sequence data are widely used in fungal systematic and taxonomic studies to delimit species infer evolutionary relationships. We developed assessed the efficacy of a multi-locus pooled sequencing method using PacBio long-read high-throughput sequencing. Samples included fresh dried voucher specimens, cultures archival DNA extracts Agaricomycetes with an emphasis on order Cantharellales. Of 283 specimens sequenced, 93.6% successfully amplified at one or more loci mean 3.3...
A systematic reevaluation of North American pyrophilous or "burn-loving" species Pholiota is presented based on molecular and morphological examination type historical collections. Confusion surrounds application the names P. brunnescens, carbonaria, castanea, fulvozonata, highlandensis, molesta, subsaponacea, with multiple applied to a single described more than once. Molecular annotations using nuc rDNA ITS1-5.8S-ITS2 (internal transcribed spacer [ITS] barcode) RPB2 (RNA polymerase II...
During mushroom surveys (2017 to 2022) of moist temperate forests Pakistan, five different collections Hydnum were found. Morpho-anatomical and phylogenetic analysis the internal transcribed spacer (nrITS) these specimens revealed one species new science (Hydnum khanspurense sp. nov.) record for Pakistan berkeleyanum). nov. is characterized by non-decurrent spines, relatively smaller basidiospores basidia with 1–4 sterigmata, along ITS region divergence from closest related subgenus Pallida,...
A new species of
A multigene phylogenetic assessment of North American species
Chanterelles (genus Cantharellus) are among the most popular wild edible mushrooms worldwide. Efforts to understand chanterelle diversity have yielded numerous new species in recent years, particularly eastern North America. We constructed a multilocus phylogeny including all described temperate of Cantharellus and newly collected specimens from United States with an emphasis on southern Appalachia. describe species, vicinus, oak-associated known only lower-elevation areas east Tennessee,...
Understanding the factors controlling relative abundance, distribution, and diversity of organisms is a fundamental challenge in ecology. For plants animals, macroecological rules have been developed that describe these large-scale distributional patterns attempt to explain underlying physiological ecological processes behind them. Similarly, microorganisms exhibit across space time, yet it remains unclear extent which follow initially for macroorganisms. With rapid advancements sequencing...
Understanding the factors controlling relative abundance, distribution, and diversity of organisms is a fundamental challenge in ecology. For plants animals, macroecological rules have been developed that describe these large-scale distributional patterns attempt to explain underlying physiological ecological processes behind them. Similarly, microorganisms exhibit across space time, yet it remains unclear extent which follow initially for macroorganisms. With rapid advancements sequencing...