On a growth medium, a culture of the dermatophyte *Trichophyton rubrum* is characterized by a granular texture, appearing pale pink on the top surface and red on the underside.

Culture Characteristics of Trichophyton rubrum

*Trichophyton rubrum* is a fungal pathogen that causes lesions like ringworm. Under microscopic examination, it is characterized by visible cell walls, macroconidia (long strands), and microconidia (smaller spheres).

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Dermatophytes are a group of pathogenic, keratin-requiring ascomycetes from the genera *Trichophyton*, *Microsporum*, and *Epidermophyton*. They are capable of causing cutaneous mycoses, including skin infections such as athlete's foot, jock itch, and ringworm.

Dermatophytes

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Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology.

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