The Delignification Pattern ofAilanthus excelsaWood byInonotus hispidus(Bull.: Fr.) P. Karst

Autor: Rina D. Koyani, Isha M. Bhatt, K. S. Rao, S. Pramod, Kishore S. Rajput
Rok vydání: 2015
Předmět:
Zdroj: Journal of Sustainable Forestry. 34:502-515
ISSN: 1540-756X
1054-9811
DOI: 10.1080/10549811.2015.1033554
Popis: In vitro laboratory decay tests on Ailanthus excelsa Roxb. wood revealed that I. hispidus exhibits a combination of both white-rot and soft-rot patterns of wood decay. Early stages of wood decay showed dissolution of the middle lamella as well as defibration and localized delignification of fiber walls; vessels, axial, and ray parenchyma remained unaltered. Delignification commenced from the middle lamellae at the cell corners without any marked effect on the primary and secondary wall layers. In later stages of growth, the species produces typical soft-rot decay pattern by forming erosion channels through the S2 layers of fiber walls, transverse bore holes in the cell walls, and erosion channels alongside/following the orientation of cellulose microfibrils. The rays showed signs of cell wall alterations only after the extensive damage to the fiber walls. After 120 days of incubation, the vessels also showed localized delignification, the erosion of pits, and separation from associated xylem elements. The...
Databáze: OpenAIRE