Arachnomyces bostrychodes
A. bostrychodes colony
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Eurotiomycetes
Order: Arachnomycetales
Family: Arachnomycetaceae
Genus: Arachnomyces
Species:
A. bostrychodes
Binomial name
Arachnomyces bostrychodes
Rodr.-Andr., Cano & Stchigel 2021[1]

Arachnomyces bostrychodes is a species of infectious ascomycete fungus discovered in 2021 from clinical specimens of fungal strains in Texas, United States.[1][2]

Etymology

The specific epithet comes from the Greek βοστρυχος-, meaning curl, referencing the curly appearance of the reproductive hyphae.[1]

Morphology and asexual reproduction

A. bostrychodes grows septate, hyaline, branched, vegetative hyphae with smooth and thin walls, between 1 and 2 μm wide. The fertile hyphae are well-differentiated, arising as lateral branches from the vegetative hyphae, successively branching to form dense, tightly curled, sinuous clusters that are also between 1 and 2 μm wide, forming random arthroconidia both intercalary and terminally.[1]

The conidia measure 4–8 x 1–2 μm, are mostly curved and truncated at one or more commonly both ends; they are enteroarthric, hyaline, one-celled, smooth-walled, cylindrical, barrel-shaped; they are finger-shaped when terminal. The conidia are separated from the fertile hyphae by rhexolysis. There have been no observations of chlamydospores, racquet-shaped hyphae, setae, or sexual reproduction.[1]

Micrographs of A. bostrychodes strain, showing the sinuous, coiled fertile hyphae (C and D) and the arthroconidia (E). Scale bar = 10 μm

References

  1. 1 2 3 4 5 Rodríguez-Andrade E, Cano-Lira JF, Wiederhold N, et al. (7 September 2021). "A revision of malbranchea-like fungi from clinical specimens in the United States of America reveals unexpected novelty". IMA Fungus. 12 (1): 25. doi:10.1186/s43008-021-00075-x. ISSN 2210-6359. PMC 8422767. PMID 34493345.
  2. ↑ "Arachnomyces bostrychodes". National Center for Biotechnology Information (NCBI). Retrieved 6 September 2022.
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