Schimmels: Ascomycota

Phylum Ascomycota, of subkingdom Dikarya, includes yeasts and filamentous fungi that contain a sac-like reproductive structure containing ascospores.

Ascomycetes inhabit aquatic and terrestrial environments and can reproduce sexually and asexually.

Sexual reproduction in Ascomycota occurs through hyphal fusion, forming an ascus where diploid nuclei undergo meiosis and mitosis to produce haploid ascospores.

Ascomycota can reproduce asexually via conidia, non-motile spores produced at the tips of specialized hyphae called conidiophores.

Many ascomycetes establish symbiosis with algae, resulting in the formation of lichens. They are also key decomposers, breaking down stable organic compounds like cellulose and lignin.

Some species, like truffles, are used as food, while others, like Candida albicans, are opportunistic human pathogens. Claviceps purpurea is a plant pathogen that causes ergot disease.

Saccharomyces cerevisiae, used in baking and brewing, was the first eukaryote to have its genome fully sequenced. Its genetic similarity to higher eukaryotes makes it a valuable model organism for research.