Chemical signature of Eurois occulta L. outbreaks in the xylem cell wall of Salix glauca L. in Greenland

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Standard

Chemical signature of Eurois occulta L. outbreaks in the xylem cell wall of Salix glauca L. in Greenland. / Prendin, Angela Luisa; Carrer, Marco; Pedersen, Nanna Bjerregaard; Normand, Signe; Hollesen, Jorgen; Treier, Urs Albert; Pividori, Mario; Thygesen, Lisbeth Garbrecht.

I: Science of the Total Environment, Bind 764, 144607, 2021.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Harvard

Prendin, AL, Carrer, M, Pedersen, NB, Normand, S, Hollesen, J, Treier, UA, Pividori, M & Thygesen, LG 2021, 'Chemical signature of Eurois occulta L. outbreaks in the xylem cell wall of Salix glauca L. in Greenland', Science of the Total Environment, bind 764, 144607. https://doi.org/10.1016/j.scitotenv.2020.144607

APA

Prendin, A. L., Carrer, M., Pedersen, N. B., Normand, S., Hollesen, J., Treier, U. A., Pividori, M., & Thygesen, L. G. (2021). Chemical signature of Eurois occulta L. outbreaks in the xylem cell wall of Salix glauca L. in Greenland. Science of the Total Environment, 764, [144607]. https://doi.org/10.1016/j.scitotenv.2020.144607

Vancouver

Prendin AL, Carrer M, Pedersen NB, Normand S, Hollesen J, Treier UA o.a. Chemical signature of Eurois occulta L. outbreaks in the xylem cell wall of Salix glauca L. in Greenland. Science of the Total Environment. 2021;764. 144607. https://doi.org/10.1016/j.scitotenv.2020.144607

Author

Prendin, Angela Luisa ; Carrer, Marco ; Pedersen, Nanna Bjerregaard ; Normand, Signe ; Hollesen, Jorgen ; Treier, Urs Albert ; Pividori, Mario ; Thygesen, Lisbeth Garbrecht. / Chemical signature of Eurois occulta L. outbreaks in the xylem cell wall of Salix glauca L. in Greenland. I: Science of the Total Environment. 2021 ; Bind 764.

Bibtex

@article{1285ecacb2d1475eb4090d759636861e,
title = "Chemical signature of Eurois occulta L. outbreaks in the xylem cell wall of Salix glauca L. in Greenland",
abstract = "Insect defoliations are a major natural disturbance in high-latitude ecosystems and are expected to increase in frequency and severity due to current climatic change. Defoliations cause severe reductions in biomass and carbon investments that affect the functioning and productivity of tundra ecosystems. Here we combined dendro-anatomical analysis with chemical imaging to investigate the direct and lagged effects of insect outbreaks on carbon investment.We analysed the content of lignin vs. holocellulose, i.e. unspecified carbohydrates in xylem samples of Salix glauca L. collected at Iffiartarfik, Nuuk fjord, Greenland, featuring two outbreak events of the moth Eurois occulta L. Cross sections of the growth rings corresponding to both outbreaks +/- 3 years were analysed using confocal Raman imaging to identify possible chemical signatures related to insect defoliation on fibres, vessels, and ray parenchyma cells and to get insight into species-specific defence responses.Outbreak years with narrower rings and thinner fibre cell wails are accompanied by a change in the content of cell-wall polymers but not their underlying chemistry. Indeed, during the outbreaks the ratio between lignin and carbohydrates significantly increased in fibre but not vessel cell walls due to an increase in lignin content coupled with a reduced content of carbohydrates. Parenchyma cell walls and cell corners did not show any significant changes in the cell-wall biopolymer content.The selective adjustment of the cell-wall composition of fibres but not vessels under stressful conditions could be related to the plants priority to maintain an efficient hydraulic system rather than mechanical support. However, the higher lignin content of fibre cell walls formed during the outbreak events could increase mechanical stiffness to the thin walls by optimizing the available resources.Chemical analysis of xylem traits with Raman imaging is a promising approach to highlight hidden effects of defoliation otherwise overlooked with classical dendroecological methods. (C) 2020 Elsevier B.V. All rights reserved.",
keywords = "Chemical imaging, Raman micro-spectroscopy, Insect outbreaks, Lignocellulose, Wood anatomy",
author = "Prendin, {Angela Luisa} and Marco Carrer and Pedersen, {Nanna Bjerregaard} and Signe Normand and Jorgen Hollesen and Treier, {Urs Albert} and Mario Pividori and Thygesen, {Lisbeth Garbrecht}",
year = "2021",
doi = "10.1016/j.scitotenv.2020.144607",
language = "English",
volume = "764",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Chemical signature of Eurois occulta L. outbreaks in the xylem cell wall of Salix glauca L. in Greenland

AU - Prendin, Angela Luisa

AU - Carrer, Marco

AU - Pedersen, Nanna Bjerregaard

AU - Normand, Signe

AU - Hollesen, Jorgen

AU - Treier, Urs Albert

AU - Pividori, Mario

AU - Thygesen, Lisbeth Garbrecht

PY - 2021

Y1 - 2021

N2 - Insect defoliations are a major natural disturbance in high-latitude ecosystems and are expected to increase in frequency and severity due to current climatic change. Defoliations cause severe reductions in biomass and carbon investments that affect the functioning and productivity of tundra ecosystems. Here we combined dendro-anatomical analysis with chemical imaging to investigate the direct and lagged effects of insect outbreaks on carbon investment.We analysed the content of lignin vs. holocellulose, i.e. unspecified carbohydrates in xylem samples of Salix glauca L. collected at Iffiartarfik, Nuuk fjord, Greenland, featuring two outbreak events of the moth Eurois occulta L. Cross sections of the growth rings corresponding to both outbreaks +/- 3 years were analysed using confocal Raman imaging to identify possible chemical signatures related to insect defoliation on fibres, vessels, and ray parenchyma cells and to get insight into species-specific defence responses.Outbreak years with narrower rings and thinner fibre cell wails are accompanied by a change in the content of cell-wall polymers but not their underlying chemistry. Indeed, during the outbreaks the ratio between lignin and carbohydrates significantly increased in fibre but not vessel cell walls due to an increase in lignin content coupled with a reduced content of carbohydrates. Parenchyma cell walls and cell corners did not show any significant changes in the cell-wall biopolymer content.The selective adjustment of the cell-wall composition of fibres but not vessels under stressful conditions could be related to the plants priority to maintain an efficient hydraulic system rather than mechanical support. However, the higher lignin content of fibre cell walls formed during the outbreak events could increase mechanical stiffness to the thin walls by optimizing the available resources.Chemical analysis of xylem traits with Raman imaging is a promising approach to highlight hidden effects of defoliation otherwise overlooked with classical dendroecological methods. (C) 2020 Elsevier B.V. All rights reserved.

AB - Insect defoliations are a major natural disturbance in high-latitude ecosystems and are expected to increase in frequency and severity due to current climatic change. Defoliations cause severe reductions in biomass and carbon investments that affect the functioning and productivity of tundra ecosystems. Here we combined dendro-anatomical analysis with chemical imaging to investigate the direct and lagged effects of insect outbreaks on carbon investment.We analysed the content of lignin vs. holocellulose, i.e. unspecified carbohydrates in xylem samples of Salix glauca L. collected at Iffiartarfik, Nuuk fjord, Greenland, featuring two outbreak events of the moth Eurois occulta L. Cross sections of the growth rings corresponding to both outbreaks +/- 3 years were analysed using confocal Raman imaging to identify possible chemical signatures related to insect defoliation on fibres, vessels, and ray parenchyma cells and to get insight into species-specific defence responses.Outbreak years with narrower rings and thinner fibre cell wails are accompanied by a change in the content of cell-wall polymers but not their underlying chemistry. Indeed, during the outbreaks the ratio between lignin and carbohydrates significantly increased in fibre but not vessel cell walls due to an increase in lignin content coupled with a reduced content of carbohydrates. Parenchyma cell walls and cell corners did not show any significant changes in the cell-wall biopolymer content.The selective adjustment of the cell-wall composition of fibres but not vessels under stressful conditions could be related to the plants priority to maintain an efficient hydraulic system rather than mechanical support. However, the higher lignin content of fibre cell walls formed during the outbreak events could increase mechanical stiffness to the thin walls by optimizing the available resources.Chemical analysis of xylem traits with Raman imaging is a promising approach to highlight hidden effects of defoliation otherwise overlooked with classical dendroecological methods. (C) 2020 Elsevier B.V. All rights reserved.

KW - Chemical imaging

KW - Raman micro-spectroscopy

KW - Insect outbreaks

KW - Lignocellulose

KW - Wood anatomy

U2 - 10.1016/j.scitotenv.2020.144607

DO - 10.1016/j.scitotenv.2020.144607

M3 - Journal article

C2 - 33387770

VL - 764

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

M1 - 144607

ER -

ID: 261379271