Annual variations in Norway spruce xylem studied using infrared micro-spectroscopy

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Annual variations in Norway spruce xylem studied using infrared micro-spectroscopy. / Huang, Weiwei; Pedersen, Nanna Bjerregaard; Fredriksson, Maria; Thygesen, Lisbeth Garbrecht.

In: Forests, Vol. 10, No. 2, 164, 15.02.2019.

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Huang, Weiwei ; Pedersen, Nanna Bjerregaard ; Fredriksson, Maria ; Thygesen, Lisbeth Garbrecht. / Annual variations in Norway spruce xylem studied using infrared micro-spectroscopy. In: Forests. 2019 ; Vol. 10, No. 2.

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TY - JOUR

T1 - Annual variations in Norway spruce xylem studied using infrared micro-spectroscopy

AU - Huang, Weiwei

AU - Pedersen, Nanna Bjerregaard

AU - Fredriksson, Maria

AU - Thygesen, Lisbeth Garbrecht

PY - 2019/2/15

Y1 - 2019/2/15

N2 - In temperate environments, ring width, cell size and cell wall thickness within the xylem of trees are known to be affected by climate conditions. Less is known about the effect of climate conditions on the chemical characteristics of the xylem, which are important for the susceptibility of the tissue towards fungal infections as well as for the degradability of the material within the forest ecosystem. We explored the use of infrared microspectroscopy to investigate the possible effects of temperature and drought on the relative amount of cell wall biopolymers, i.e. the ratios between cellulose, hemicellulose and lignin in the earlywood xylem cell walls of Norway spruce (Picea abies (L.) Karst.) in temperate forests. Drought and warm temperatures were significantly correlated to the hemicellulose to lignin ratio of the earlywood formed the following year, perhaps due to a reduced amount of stored resources being available for xylem formation.

AB - In temperate environments, ring width, cell size and cell wall thickness within the xylem of trees are known to be affected by climate conditions. Less is known about the effect of climate conditions on the chemical characteristics of the xylem, which are important for the susceptibility of the tissue towards fungal infections as well as for the degradability of the material within the forest ecosystem. We explored the use of infrared microspectroscopy to investigate the possible effects of temperature and drought on the relative amount of cell wall biopolymers, i.e. the ratios between cellulose, hemicellulose and lignin in the earlywood xylem cell walls of Norway spruce (Picea abies (L.) Karst.) in temperate forests. Drought and warm temperatures were significantly correlated to the hemicellulose to lignin ratio of the earlywood formed the following year, perhaps due to a reduced amount of stored resources being available for xylem formation.

KW - Biopolymer composition

KW - Climate

KW - Dendroecology

KW - Drought

KW - Infrared microspectroscopy

KW - Temperature

KW - Xylem plasticity

U2 - 10.3390/f10020164

DO - 10.3390/f10020164

M3 - Article

VL - 10

JO - Forests

JF - Forests

SN - 1999-4907

IS - 2

M1 - 164

ER -