Fig. 4
From: Diverse Xylaria in the Ecuadorian Amazon and their mode of wood degradation
Scanning electron micrographs of transverse sections of balsa wood (Ochroma pyramidale) uninoculated and inoculated with three different species of Xylaria. A Uninoculated balsa wood showing sound cell walls displaying the morphological characteristics of the intact wood, B–D Wood inoculated with Xylaria curta (B), Xylaria 2 (C) and Xylaria 1 (D) Removal of cell wall material was observed and all three Xylaria isolates caused a Type 2 soft rot. Cell walls were eroded to varying degrees and thinned from the lumen towards the middle lamella. The middle lamella remained relatively unaffected except were voids formed from the exceedingly weaken cell walls. Bar, 100 µm (A–D)