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Mucoralean fungi are typically fast-growing, and their wide hyphae (long, filamentous structures) lack septa (multi-perforate septa are present only in sporangiophores and gametangia). The hyphae grow mostly within the substrate. Sporangiophores are upright (simple or ramified) hyphae, that support sac-like sporangia filled with asexual ...
They first form a mass of individual hyphae. When the mass of hyphae grows large enough in size to be seen without use of a microscope, it can be called a mycelium . Colonies are generally white in color, though they may turn grey under the presence of bacteria or other debris which has become caught in the fibrous mass.
Traditional identification of hyphomycetes was primarily based on microscopic morphology including: conidial morphology, especially septation, shape, size, colour and cell wall texture, the arrangement of conidia as they are borne on the conidiogenous cells (e.g. if they are solitary, in chains, or produced in slime), the type of conidiogenous cell (e.g. non-specialized or hypha-like, phialide ...
The periphery of the mold may appear orange-coloured, and radial sulcate folds will develop. Under the microscope, the mold phase will look like a typical Penicillium , with hyaline, septate and branched hyphae; the conidiophores are located both laterally and terminally.
They have few septa and lack clamp connections. Fusiform skeletal hyphae are the second form of skeletal hyphae. Unlike typical skeletal hyphae these are swollen centrally and often exceedingly broad, hence giving the hypha a fusiform shape. Binding hyphae are thick-walled and frequent branched. Often they resemble deer antlers or defoliated ...
A common example of a zygomycete is black bread mold (Rhizopus stolonifer), a member of the Mucorales. It spreads over the surface of bread and other food sources, sending hyphae inward to absorb nutrients. In its asexual phase it develops bulbous black sporangia at the tips of upright hyphae, each containing hundreds of haploid spores.
Stachybotrys (/ ˌ s t æ k i ˈ b ɒ t r ɪ s /) is a genus of molds, hyphomycetes or asexually reproducing, filamentous fungi, now placed in the family Stachybotryaceae. The genus was erected by August Carl Joseph Corda in 1837.
Unique to this species is the production of aleurioconidia, asexual spores produced directly on the hyphae that are larger than the phialoconidia (e.g. 6–7 μm in diameter). This structure might be influential in the way A. terreus presents itself clinically as it can induce elevated inflammatory responses. [4] [11] [12]