<prompt> Which of the following is used as fungal stain tissue biopsy sections? -PASAlizarin redLPCBMasson Trichrome  <response>: picture from RAM DAS NAYAK 2nd Ed. pg no.32 see the description image Standard histological stains for fungi are Grocott methanmine silver GMS stain or Periodic acid-Schiff PAS. The GMS stain is more sensitive than the PAS stain, but has a signal to noise issue in that it stainsinflammatory cells lysosomes and tissue reticulin, in addition to fungi. 