Research Articles

The diversity of soil fungi, crucial microbial entities providing essential ecological services, remains underexplored in African soils. This study, the largest of its kind, employs eDNA metabarcoding from 467 samples across 32 countries, revealing hotspots in savannas and tropical forests. Precipitation and latitude significantly influence fungal alpha diversity, providing a crucial reference for future conservation and research efforts.

This study examines how loess, calcareous, and laterite soils in Guangxi, China, influence tomato rhizosphere microbial communities. Findings reveal distinct microbial assemblages, with laterite soil enriched in beneficial fungi like Curvularia and bacteria including Bacillus, offering superior conditions for tomato growth. These insights support targeted soil management to enhance productivity.

This study explores the taxonomy of rust fungi (Pucciniales, Basidiomycota) in Brazil's Cerrado. Researchers identified novel species and genera, highlighting that only 13% of potential rust fungi are documented here. These findings underscore the urgency of integrating fungal systematics with conservation efforts in this highly threatened biome.

This study investigates Phylloporia fungi, revealing four new species in Arabuko Sokoke National Park, Kenya, through morphological, ecological, and phylogenetic analyses. Notably, Phylloporia pulchella and P. thecacoris lack close phylogenetic relatives, highlighting unique evolutionary paths. A key to the species in tropical Africa is included for further study.

This study delves into the diversity of Peziza echinospora, a cup-fungi species reliant on burnt ground, confirming its presence in Australia through multilocus phylogenetic analyses. Remarkably, it introduces two new species: P. austroechinospora, with larger spiny ascospores, and P. meridionalis, featuring smooth ascospores, which intriguingly functions as an orchid root endophyte.

This study investigates the fungal communities in eastern larch beetle (Dendroctonus simplex) galleries amid a prolonged outbreak in Minnesota's Larix laricina forests. Researchers identified 45 fungal species, four being novel Ophiostomatales, and propose taxonomic revisions for Leptographium simplex. Dominant among the isolates was Ascomycota, particularly the Ophiostomatales.

In dry tropical forests of Mexico, two novel Tulostoma species, T. parvirufula and T. chamelensis, have been identified. Morphological analysis and DNA sequencing reveal distinctive traits, such as spore sac size and basidiospore ornamentation. Phylogenetic studies place them near clade 11, highlighting their unique evolutionary lineage and enriching our understanding of Tulostoma diversity.

This study examines shifts in plant-fungal symbiont interactions under prolonged warming in subalpine grasslands. Over 29 years, experimental warming led to a 150% increase in woody vegetation, reduced reliance on mycorrhizal fungi by 17-20%, and a 10% rise in soil saprotrophic fungi. These shifts suggest a move toward more conservative ecosystems, resembling desert shrublands.

Ribosomally synthesized and post-translationally modified peptides (RiPPs) are crucial secondary metabolites across various organisms. This study uncovers a subclass of leaderless RiPPs in fungi, challenging the traditional framework. Using bioinformatics and chemical analyses, researchers identified these abundant peptides in invasive Amanita phalloides, highlighting their potential role in the species' proliferation.

Arbuscular mycorrhizal fungi form symbiotic relationships with plants, exchanging phosphorus for carbon, crucial for ecosystem productivity and climate regulation. This study utilized an automated pipeline to analyze fungal network growth, revealing how carbon-phosphorus exchange rates influence the density-speed trade-off in fungal growth, offering insights into symbiotic nutrient exchange dynamics.

This study examines the root-associated fungal communities of the endangered orchid Paphiopedilum purpuratum. Key findings reveal significant geographic differentiation predominantly driven by abiotic factors like longitude. Notably, 44% of root fungal taxa are soil-derived. Assembly processes differ: stochastic within roots and deterministic in rhizosphere, underscoring a complex environment–host synergy.

In a groundbreaking study, researchers present the first comprehensive multilocus phylogeny of the lichen genus Micarea (Ectolechiaceae, Ascomycota), revealing it as monophyletic when expanded to include Fellhaneropsis and Szczawinskia. Utilizing five genetic loci across 314 specimens, the study identifies four novel species and proposes refined taxonomic classifications within Micarea.