Wood anatomical analysis of Alnus incana and Betula pendula injured by a debris-flow event

Tree Physiology
Estelle ArbellayMichelle Bollschweiler

Abstract

Vessel chronologies in ring-porous species have been successfully employed in the past to extract the climate signal from tree rings. Environmental signals recorded in vessels of ring-porous species have also been used in previous studies to reconstruct discrete events of drought, flooding and insect defoliation. However, very little is known about the ability of diffuse-porous species to record environmental signals in their xylem cells. Moreover, time series of wood anatomical features have only rarely been used to reconstruct former geomorphic events. This study was therefore undertaken to characterize the wood anatomical response of diffuse-porous Alnus incana (L.) Moench and Betula pendula Roth to debris-flow-induced wounding. Tree microscopic response to wounding was assessed through the analysis of wood anatomical differences between injured rings formed in the debris-flow event year and uninjured rings formed in the previous year. The two ring types were examined close and opposite to the injury in order to determine whether wound effects on xylem cells decrease with increasing tangential distance from the injury. Image analysis was used to measure vessel parameters as well as fiber and parenchyma cell (FPC) parameters....Continue Reading

Citations

Mar 2, 2012·Journal of Experimental Botany·Estelle ArbellayMarkus Stoffel
Nov 10, 2015·The New Phytologist·Hugh MorrisSteven Jansen
Dec 5, 2015·Frontiers in Plant Science·Georg von ArxPatrick Fonti
Nov 5, 2019·Nature Communications·Katerina MachacovaMari Pihlatie

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