Fluorescent stained sections of a Henon bamboo spikelet with stroma of Aciculosporium take.

A–B: Serial sections. Merged view of Blue excitaion and Green excitation. Cyan color indicates fungal cell wall stained by WGA-Alexa fluor 488. Red coloration indicates cellulose stained by Trypan blue. 

C–F: Enlarged views of the areas marked in B. 

C and E: Blue excitation. Green coloration indicates fungal cell wall stained by WGA-Alexa fluor 488. 

D and F: UV excitation. Blue coloration indicates nuclei stained by DAPI. 

Abbreviations: F1–F3 first to third floret, rf rudimentary floret. Bars: A–B, 1 mm; C–F 0.5 mm.