Fig. 3

Scanning electron micrographs of E. fordii and beech wood samples: (a₁–a₃) E. fordii wood exposed to P. chrysosporium; b₁–b₃ E. fordii wood exposed to P. sordida; c₁–c₃ beech wood exposed to P. chrysosporium; d₁–d₃ beech wood exposed to P. sordida; a₁–a₂, b₁–b₂, c₁–c₂ and d₁–d₂ cross sections: Colonization of hyphae in the lumen of vessels and fibers (arrows), deterioration of parenchyma (a₂ arrowhead), and defibrillation of wood tissue (b₂, d₂ arrowheads). a₃, b₃, c₂–c₃, and d₃ Radial sections: the presence of hyphae in the lumen of vessels and parenchymal cells (a₃) or vessels and fibers (c₂); b₃, c₃ hyphae penetration in vessel pits and bore holes in vessel walls (arrowheads). a₁, b₁ Bar 100 µm; a₂–a₃, b₂–b₃, c₁–c₃, and d₁–d₃ bar 10 µm