An appearance in culture given below is seen due to which organism ?: (A) Sporothrix schenckii, (B) Paracoccidioides brasiliensis, (C) Histoplasma capsulatum, (D) Blastomyces dermatidis
Answer is B. The appearance is known as Pilot wheel or Mariner's wheel . Pilot wheel Seen in Paracoccidioides brasiliensis on culture growth at temperature of 37 degC Occurs due to multiple budding yeast cells in culture attached to large mother cell . =Sporotrichosis or Rose Gardner's diseaseis chronic subcutaneous pyogranulomatous disease caused by a thermally dimorphic fungus Sporothrix schenckii. =Blastomyces dermatitidis causes Gilchrist's disease, Chicago disease =HistoplasmosisorDarling's diseaseis caused by dimorphic fungus - Histoplasma capsulatum