Research Articles

This study on liver transplant patients reveals that fungi, alongside gram-positive and gram-negative bacteria, contribute to post-transplant infections, with a surprising prevalence of drug-resistant bacteria. Advanced age, extended ICU stays, and high bilirubin levels heighten infection risks. The findings underscore the need for interventions to reduce infection and sepsis, emphasizing fungal pathogen vigilance.

Triterpenoids, complex natural compounds found in plants, fungi, and marine organisms, exhibit notable cytotoxicity against cancer. This review updates their types, structures, and cytotoxicity from 2015 to 2024. With insights into structure-activity relationships, the study proposes strategies for structural modifications, aiming to enhance the development of novel anticancer agents.

This study delves into the Didymellaceae family, notably Phoma-like fungi, associated with Convolvulaceae plants. Using multilocus phylogenetics, 16 species were confirmed, with three newly described: Didymella pseudomacrophylla, Epicoccum convolvulicola, and Epicoccum pseudoplurivorum. Seven species are newly reported in Russia, and one in Kazakhstan, highlighting their ecological breadth and diversity.

Protein kinase A (PKA) signaling is crucial in fungal immune evasion by manipulating β-1,3-glucan masking in Candida albicans. This study utilizes mathematical modeling and experiments to reveal how PKA-regulated pathways and specific glucanases contribute to dynamic glucan exposure, enhancing immune resistance. Insights may apply to various pathogenic fungi.

In an important advance for mycological research, Xenopyricularia zizaniicola strain JB-1, a pathogenic fungus affecting Zizania latifolia, has been found to possess a unique "one-speed genome." This diverges from the typical "two-speed genome" of Pyricularia oryzae, suggesting a distinct evolutionary path for pathogenicity-associated genes in this strain.

This study investigates CotH3 and GRP78 gene expressions, key in fungal invasion, within macrophages and diabetic mice infected with Rhizopus oryzae. Elevated GRP78 and CotH3 expressions were identified as pivotal in mucormycosis, highlighting diabetes as a risk factor. This research is vital for understanding mucormycosis pathogenesis and developing targeted treatments.

This study employs fDOG, an advanced ortholog search tool, to analyze plant cell wall-degrading enzymes (PCDs) across 18,000 taxa, revealing unexpected genomic richness in certain invertebrates. Utilizing UMAP for data visualization, fDOG identifies noteworthy enzymatic repertoire shifts and potential contributions to the global carbon cycle, illustrating its effectiveness in mapping metabolic capacities across the tree of life.

This study evaluates the efficacy of metagenomic next-generation sequencing (mNGS) in diagnosing invasive pulmonary aspergillosis (IPA) post-COVID-19. mNGS outperforms conventional microbial tests, showing 80.58% sensitivity. COVID-19 history emerges as an independent IPA risk factor, highlighting the need for vigilant follow-up. Mixed infections, frequently involving Human gammaherpesvirus, are prevalent in IPA patients.

This study investigates the roles of ectomycorrhizal (EcM) and arbuscular mycorrhizal (AM) fungi in tree competition and facilitation across the USA. Key findings reveal that EcM-driven competition intensifies with EcM dominance, especially under higher precipitation, while species richness promotes facilitation uniformly. Notably, temperature distinctly affects EcM-AM interactions, highlighting climate's differential impacts on mycorrhizal associations.

This study explores the global drought response variations between trees associated with arbuscular mycorrhizal (AM) fungi and ectomycorrhizal (EM) fungi. EM trees showed higher drought mortality but less growth reduction and recovery issues than AM trees. Key drought influences include soil pH and climate seasonality, suggesting a potential shift towards AM trees with climate changes.

Protein thermostability refers to a protein's capacity to maintain structure and function at varying temperatures, crucial for organismal thermotolerance. This study reveals that both structural and cellular environmental changes drive differences in thermostability between Saccharomyces species. Proteins in S. cerevisiae exhibit enhanced stability, largely mediated by amino acid substitutions, underscoring their evolutionary adaptation.

Chytrids are a group of fungi characterized by their flagellated spores, known for parasitizing aquatic hosts. This study introduces a novel chytrid species that exclusively targets the heterocysts of the filamentous, nitrogen-fixing cyanobacterium Dolichospermum sp. This discovery highlights a unique parasitic relationship, offering insights into chytrid diversity and host specificity.