Which pigment-producing fungi are known as 'dematiaceous' ?

Which pigment-producing fungi are known as 'dematiaceous' ?

• A. Hyaline Fungi (non-pigmented)
• B. Zygomycetes
• C. Dematiaceous Fungi (pigmented) such as Fonsecaea and Cladophialophora
• D. Yeasts

Answer: (C)

Pigment production by fungi defines dematiaceous fungi. They show dark coloration because melanin is deposited in their cell walls, giving brown to black colonies and structures. This pigmentation is a hallmark of the group, which includes genera like Fonsecaea and Cladophialophora that are classic examples. Hyaline fungi are nonpigmented, so they do not belong to this group. Zygomycetes belong to a different lineage with typically pale, nonpigmented hyphae, and yeasts are usually unicellular and not pigmented in the same way. Therefore, the pigment-producing group known as dematiaceous fungi is the one described by pigmented species such as Fonsecaea and Cladophialophora.

Pigment production by fungi defines dematiaceous fungi. They show dark coloration because melanin is deposited in their cell walls, giving brown to black colonies and structures. This pigmentation is a hallmark of the group, which includes genera like Fonsecaea and Cladophialophora that are classic examples. Hyaline fungi are nonpigmented, so they do not belong to this group. Zygomycetes belong to a different lineage with typically pale, nonpigmented hyphae, and yeasts are usually unicellular and not pigmented in the same way. Therefore, the pigment-producing group known as dematiaceous fungi is the one described by pigmented species such as Fonsecaea and Cladophialophora.