N. H. Youssef

Diversity and community structure of anaerobic gut fungi in the rumen of wild and domesticated herbivores

This study surveys AGF diversity in the rumen of wild and domesticated herbivores, finding high diversity but limited new genera, and identifies host phylogeny as a key factor shaping community structure.

Anaerobic fungi in the tortoise alimentary tract illuminate early stages of host-fungal symbiosis and Neocallimastigomycota evolution

This paper identifies novel anaerobic gut fungi in tortoises, revealing their ancient evolutionary origin and reduced metabolic capabilities compared to mammalian counterparts.

Anaerobic gut fungal communities in marsupial hosts

This study characterizes anaerobic gut fungal communities in marsupials, finding low abundance and lack of host-specific selection compared to placental herbivores.

Temporal progression of anaerobic fungal communities in dairy calves from birth to maturity

This study tracks anaerobic fungal communities in dairy calves from birth to maturity, finding rapid colonization, shifts in diversity and structure, and maternal transmission.

Patterns and determinants of the global herbivorous mycobiome

The paper analyzes AGF diversity across 661 fecal samples from 34 herbivorous species, identifying 56 novel genera and showing that both stochastic and deterministic processes shape AGF communities, with hindgut fermenters having stronger host-specific associations.

Genomes of novel Myxococcota reveal severely curtailed machineries for predation and cellular differentiation

This study analyzes genomes of novel Myxococcota from anaerobic habitats, revealing reduced capacities for predation and cellular differentiation compared to soil-dwelling relatives.

Microbial diversity and sulfur cycling in an early earth analogue: From ancient novelty to modern commonality

The paper examines microbial diversity and sulfur cycling in an anoxic spring, showing ancient microbial lineages and processes that reflect early Earth conditions and the impact of oxygenation.

Paucimyces polynucleatus gen. nov, sp. nov., a novel polycentric genus of anaerobic gut fungi from the feces of a wild blackbuck antelope

The paper isolates and characterizes a novel anaerobic gut fungus from a blackbuck antelope, describing a new genus and species, Paucimyces polynucleatus.

Genomic analysis of family UBA6911 (Group 18 Acidobacteria) expands the metabolic capacities of the phylum and highlights adaptations to terrestrial habitats

This study analyzes genomes from the Acidobacteria family UBA6911 to reveal their metabolic versatility and adaptations to different terrestrial and non-terrestrial habitats.

Genomic characterization of three novel Desulfobacterota classes expand the metabolic and phylogenetic diversity of the Phylum

This study characterizes 30 genomes from three novel Desulfobacterota classes, expanding their metabolic and phylogenetic diversity across various environments.

Methylotrophy, alkane-degradation, and pigment production as defining features of the globally distributed yet-uncultured phylum Binatota

This study analyzes genomes from the uncultured bacterial phylum Binatota, revealing their methylotrophic, alkane-degrading, and pigment-producing capabilities, along with ecological preferences.

Assessing anaerobic gut fungal (Neocalliamstigomycota) diversity using PacBio D1/D2 LSU rRNA amplicon sequencing and multi-year isolation

This study develops and applies D1/D2 LSU rRNA amplicon sequencing using PacBio to assess anaerobic gut fungal diversity in herbivores, identifying novel lineages and improving culturability.

Seven new Neocallimastigomycota genera from fecal samples of wild, zoo-housed, and domesticated herbivores: Description of Ghazallomyces constrictus gen. nov., sp. nov., Aklioshbomyces papillarum gen. nov., sp. nov., Agriosomyces longus gen. nov., sp. nov., Capellomyces foraminis gen. nov., sp. nov. and Capellomyces elongatus sp. nov., Joblinomyces apicalis gen. nov., sp. nov., Khoyollomyces ramosus gen. nov., sp. nov., and Tahromyces munnarensis gen. nov., sp. nov.

The paper describes seven new genera and eight new species of Neocallimastigomycota fungi isolated from herbivore fecal samples, expanding known diversity in this group.