Hydrophobic and Hydrophilic Extractives in Norway Spruce and Kurile Larch and Their Role in Brown-Rot Degradation

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Standard

Hydrophobic and Hydrophilic Extractives in Norway Spruce and Kurile Larch and Their Role in Brown-Rot Degradation. / Fuchtner, Sophie; Brock-Nannestad, Theis; Smeds, Annika; Fredriksson, Maria; Pilgard, Annica; Thygesen, Lisbeth Garbrecht.

I: Frontiers in Plant Science, Bind 11, 855, 2020.

Publikation: Bidrag til tidsskriftTidsskriftartikelfagfællebedømt

Harvard

Fuchtner, S, Brock-Nannestad, T, Smeds, A, Fredriksson, M, Pilgard, A & Thygesen, LG 2020, 'Hydrophobic and Hydrophilic Extractives in Norway Spruce and Kurile Larch and Their Role in Brown-Rot Degradation', Frontiers in Plant Science, bind 11, 855. https://doi.org/10.3389/fpls.2020.00855

APA

Fuchtner, S., Brock-Nannestad, T., Smeds, A., Fredriksson, M., Pilgard, A., & Thygesen, L. G. (2020). Hydrophobic and Hydrophilic Extractives in Norway Spruce and Kurile Larch and Their Role in Brown-Rot Degradation. Frontiers in Plant Science, 11, [855]. https://doi.org/10.3389/fpls.2020.00855

Vancouver

Fuchtner S, Brock-Nannestad T, Smeds A, Fredriksson M, Pilgard A, Thygesen LG. Hydrophobic and Hydrophilic Extractives in Norway Spruce and Kurile Larch and Their Role in Brown-Rot Degradation. Frontiers in Plant Science. 2020;11. 855. https://doi.org/10.3389/fpls.2020.00855

Author

Fuchtner, Sophie ; Brock-Nannestad, Theis ; Smeds, Annika ; Fredriksson, Maria ; Pilgard, Annica ; Thygesen, Lisbeth Garbrecht. / Hydrophobic and Hydrophilic Extractives in Norway Spruce and Kurile Larch and Their Role in Brown-Rot Degradation. I: Frontiers in Plant Science. 2020 ; Bind 11.

Bibtex

@article{1d5c067e8b8a4efabfa07d10446426ab,
title = "Hydrophobic and Hydrophilic Extractives in Norway Spruce and Kurile Larch and Their Role in Brown-Rot Degradation",
abstract = "Extractives found in the heartwood of a moderately durable conifer (Larix gmelinii var. japonica) were compared with those found in a non-durable one (Picea abies). We identified and quantified heartwood extractives by extraction with solvents of different polarities and gas chromatography with mass spectral detection (GC-MS). Among the extracted compounds, there was a much higher amount of hydrophilic phenolics in larch (flavonoids) than in spruce (lignans). Both species had similar resin acid and fatty acid contents. The hydrophobic resin components are considered fungitoxic and the more hydrophilic components are known for their antioxidant activity. To ascertain the importance of the different classes of extractives, samples were partially extracted prior to subjection to the brown-rot fungusRhodonia placentafor 2-8 weeks. Results indicated that the most important (but rather inefficient) defense in spruce came from the fungitoxic resin, while large amounts of flavonoids played a key role in larch defense. Possible moisture exclusion effects of larch extractives were quantified via the equilibrium moisture content of partially extracted samples, but were found to be too small to play any significant role in the defense against incipient brow-rot attack.",
keywords = "extractives, brown-rot, spruce, larch, durability, moisture content, heartwood, GC-MS, SCOTS PINE KNOTS, WOOD CELL-WALLS, DECAY RESISTANCE, HEARTWOOD EXTRACTIVES, LIPOPHILIC EXTRACTIVES, ANTIOXIDANT ACTIVITY, RELATIVE-HUMIDITY, ENVIRONMENTALLY-BENIGN, MOISTURE SORPTION, EUROPEAN LARCH",
author = "Sophie Fuchtner and Theis Brock-Nannestad and Annika Smeds and Maria Fredriksson and Annica Pilgard and Thygesen, {Lisbeth Garbrecht}",
year = "2020",
doi = "10.3389/fpls.2020.00855",
language = "English",
volume = "11",
journal = "Frontiers in Plant Science",
issn = "1664-462X",
publisher = "Frontiers Media S.A.",

}

RIS

TY - JOUR

T1 - Hydrophobic and Hydrophilic Extractives in Norway Spruce and Kurile Larch and Their Role in Brown-Rot Degradation

AU - Fuchtner, Sophie

AU - Brock-Nannestad, Theis

AU - Smeds, Annika

AU - Fredriksson, Maria

AU - Pilgard, Annica

AU - Thygesen, Lisbeth Garbrecht

PY - 2020

Y1 - 2020

N2 - Extractives found in the heartwood of a moderately durable conifer (Larix gmelinii var. japonica) were compared with those found in a non-durable one (Picea abies). We identified and quantified heartwood extractives by extraction with solvents of different polarities and gas chromatography with mass spectral detection (GC-MS). Among the extracted compounds, there was a much higher amount of hydrophilic phenolics in larch (flavonoids) than in spruce (lignans). Both species had similar resin acid and fatty acid contents. The hydrophobic resin components are considered fungitoxic and the more hydrophilic components are known for their antioxidant activity. To ascertain the importance of the different classes of extractives, samples were partially extracted prior to subjection to the brown-rot fungusRhodonia placentafor 2-8 weeks. Results indicated that the most important (but rather inefficient) defense in spruce came from the fungitoxic resin, while large amounts of flavonoids played a key role in larch defense. Possible moisture exclusion effects of larch extractives were quantified via the equilibrium moisture content of partially extracted samples, but were found to be too small to play any significant role in the defense against incipient brow-rot attack.

AB - Extractives found in the heartwood of a moderately durable conifer (Larix gmelinii var. japonica) were compared with those found in a non-durable one (Picea abies). We identified and quantified heartwood extractives by extraction with solvents of different polarities and gas chromatography with mass spectral detection (GC-MS). Among the extracted compounds, there was a much higher amount of hydrophilic phenolics in larch (flavonoids) than in spruce (lignans). Both species had similar resin acid and fatty acid contents. The hydrophobic resin components are considered fungitoxic and the more hydrophilic components are known for their antioxidant activity. To ascertain the importance of the different classes of extractives, samples were partially extracted prior to subjection to the brown-rot fungusRhodonia placentafor 2-8 weeks. Results indicated that the most important (but rather inefficient) defense in spruce came from the fungitoxic resin, while large amounts of flavonoids played a key role in larch defense. Possible moisture exclusion effects of larch extractives were quantified via the equilibrium moisture content of partially extracted samples, but were found to be too small to play any significant role in the defense against incipient brow-rot attack.

KW - extractives

KW - brown-rot

KW - spruce

KW - larch

KW - durability

KW - moisture content

KW - heartwood

KW - GC-MS

KW - SCOTS PINE KNOTS

KW - WOOD CELL-WALLS

KW - DECAY RESISTANCE

KW - HEARTWOOD EXTRACTIVES

KW - LIPOPHILIC EXTRACTIVES

KW - ANTIOXIDANT ACTIVITY

KW - RELATIVE-HUMIDITY

KW - ENVIRONMENTALLY-BENIGN

KW - MOISTURE SORPTION

KW - EUROPEAN LARCH

U2 - 10.3389/fpls.2020.00855

DO - 10.3389/fpls.2020.00855

M3 - Journal article

C2 - 32695126

VL - 11

JO - Frontiers in Plant Science

JF - Frontiers in Plant Science

SN - 1664-462X

M1 - 855

ER -

ID: 246725975