Characterisation of wood decay and fungal diversity in cultural heritage cable car pylons in Svalbard
Source abstract
Abstract
Abstract This study uses a novel combination of DNA metabarcoding, light microscopy, decay rating, moisture dynamics, and chemical analysis to investigate wood decay in cultural heritage cable car pylons in Svalbard. Uniform design but varying ages allowed analysis of time-dependent decay. Light microscopy revealed the use of both Picea abies and Pinus sylvestris. Decay progressed more rapidly near ground contact, influencing density, lignin, and holocellulose content, with lignin increasing over time. DNA metabarcoding and microscopy revealed dominant brown and soft rot fungi, with greater fungal diversity near ground level. Several new fungal species were identified for Svalbard and the polar regions. In the context of climate change, this highlights the global importance of monitoring fungal decay in wooden structures. The study emphasises the need for updated species lists and continuous monitoring, as new fungi may affect conservation strategies. The interdisciplinary method offers deeper insight into microbial interactions than single-method approaches.
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Research context
OpenAlex topics: Forest Ecology and Biodiversity Studies · Plant Pathogens and Fungal Diseases · Mycorrhizal Fungi and Plant Interactions
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References (93)
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1. UN. Transforming our world: the 2030 Agenda for Sustainable Development | Department of Economic and Social Affairs. https://sdgs.un.org/2030agenda (2015).
2. Dahle, K., Bjerck, H. B. & Prestvold, K. Cultural heritage plan for Svalbard 2000-2010 (in Norwegian) (Kulturminneplan for Svalbard 2000-2010). 126 https://www.yumpu.com/no/document/view/33563690/kulturminneplan-for-svalbard-2000-2010-sysselmannen (2000).
3. Sandodden, I. S., Yri, H. T. & Solli, H. Cultural heritage plan for Svalbard 2013-2023 (in Norwegian) (Kulturminneplan for Svalbard 2013–2023). 57 https://www.sysselmesteren.no/contentassets/bffbcd7fa7ae42ad8c6c22f047b360b3/kulturminneplan-2013---2023.pdf (2013).
4. Mattsson, J. & Flyen, A.-C. in Historical Polar Bases—preservation and Management (eds. Barr, S. & Chaplin, P.) 23–29 (ICOMOS International Polar Heritage Committee, 2008).
5. Arlov, T. B. A Short History of Svalbard (Norsk Polarinstitutt, 1989).
6. Ministry of Climate and Environment. Svalbard Environmental Protection Act. Government.no https://www.regjeringen.no/en/dokumenter/svalbard-environmental-protection-act/id173945/ (2001).
7. Mattsson, J. The impact of microclimate on biodeterioration of wood in historic buildings. (NTNU, 2017).
8. Flyen, A.-C. & Mattsson, J. Preservation of technical industrial heritage. Repair of cable car pylons in Longyearbyen (in Norwegian) (Bevaring Av Teknisk Industrielle Kulturminner. Reparasjon Av Taubanebukker i Longyearbyen). https://www.miljovernfondet.no/wp-content/uploads/2020/01/13-47-niku-mycoteam-rapport-manual-for-undersokelse-og-istandsetting-av-taubanebukk.pdf (2018).
9. Flyen, A.-C., Sinitsyn, A., Westermann, S. & Mattsson, J. The mining history in Longyearbyen is struggling with climate change (in Norwegian) (Gruvehistorien i Longyearbyen sliter med klimaendringene). Kulturminnebloggen, Forskning.no https://blogg.forskning.no/kulturminnebloggen/gruvehistorien-i-longyearbyen-sliter-med-klimaendringene/2108050 (2022).
10. Gobakken, L. R., Mattsson, J. & Alfredsen, G. The importance of critical in-situ conditions for in-service performance of wood. Agarica 34, 29–36 (2014).
11. Lebow, S. T. & Highley, T. In Development of Commercial Wood Preservatives. Vol. 982 (eds. Schultz, T.P. Militz, H. Freeman, M.H, Goodell, B. & Nicholas, D.D.) 120–141 (American Chemical Society, 2008).
12. Zabel, R. & Morrell, J. Wood Microbiology. Decay and Its Prevention (Academic Press, 1992).
13. Dix, N. & Webster, J. Fungal Ecology (Chapman & Hall, 1995).10.1007/978-94-011-0693-1 ↗
14. Brischke, C. & Alfredsen, G. Wood-water relationships and their role for wood susceptibility to fungal decay. Appl. Microbiol. Biotechnol. 104, 3781–3795 (2020).10.1007/s00253-020-10479-1 ↗
15. Mattsson, J. & Flyen, A.-C. Preventive Methods Against Biodeterioration of Protected Building Materials in Svalbard 44–50 (ICOMOS International Polar Heritage Committee, 2011).
16. Ernakovich, J. G. et al. Predicted responses of arctic and alpine ecosystems to altered seasonality under climate change. Glob. Change Biol. 20, 3256–3269 (2014).10.1111/gcb.12568 ↗
17. Marais, B. N., Schönauer, M., van Niekerk, P. B., Niklewski, J. & Brischke, C. Modelling in-ground wood decay using time-series retrievals from the 5th European climate reanalysis (ERA5-Land). Eur. J. Remote Sens. 56, 2264473 (2023).10.1080/22797254.2023.2264473 ↗
18. Flyen, A.-C. & Thuestad, A. E. A review of fungal decay in historic wooden structures in polar regions. Conserv. Manag. Archaeol. Sites 24, 3–35 (2022).10.1080/13505033.2022.2156145 ↗
19. Descamps, S. et al. Climate change impacts on wildlife in a High Arctic archipelago—Svalbard, Norway. Glob. Change Biol. 23, 490–502 (2017).10.1111/gcb.13381 ↗
20. Serreze, M. C., Barrett, A. P., Stroeve, J. C., Kindig, D. N. & Holland, M. M. The emergence of surface-based Arctic amplification. The Cryosphere 3, 11–19 (2009).10.5194/tc-3-11-2009 ↗
21. Serreze, M. C. & Francis, J. A. The Arctic amplification debate. clim. change 76, 241–264 (2006).10.1007/s10584-005-9017-y ↗
22. England, M. R., Eisenman, I., Lutsko, N. J. & Wagner, T. J. W. The Recent Emergence of Arctic Amplification. Geophys. Res. Lett. 48, e2021GL094086 (2021).10.1029/2021GL094086 ↗
23. Rantanen, M. et al. The Arctic has warmed nearly four times faster than the globe since 1979. Commun. Earth Environ. 3, 1–10 (2022).10.1038/s43247-022-00498-3 ↗
24. Adakudlu, M. et al. Climate in Svalbard 2100—a Knowledge Base for Climate Adaptation. https://ngi.brage.unit.no/ngi-xmlui/handle/11250/2591129 (2019).
25. Grünberg, I., Groenke, B., Westermann, S. & Boike, J. Permafrost and active layer temperature and freeze/thaw timing reflect climatic trends at Bayelva, Svalbard. J. Geophys. Res. Earth Surf. 129, e2024JF007648 (2024).10.1029/2024JF007648 ↗
26. Norsk Klimaservicesenter. Climate profile Longyearbyen (in Norwegian) (Klimaprofil Longyearbyen, 2024). https://klimaservicesenter.no/kss/klimaprofiler/longyearbyen
27. Klesse, S. et al. Tree-ring anatomy improves the reliability of temperature reconstructions using relict wood. Geophys. Res. Lett. 52, e2024GL113310 (2025).10.1029/2024GL113310 ↗
28. Blanchette, R. A. & Simpson, E. Soft Rot and Wood Pseudomorphs in an Ancient Coffin (700 Bc) From Tumulus Mm at Gordion, Turkey. https://doi.org/10.1163/22941932-90001269 (1992).10.1163/22941932-90001269 ↗
29. Blanchette, R. A. Delignification by Wood-Decay Fungi. Annu. Rev. Phytopathol. 29, 381–403 (1991).10.1146/annurev.py.29.090191.002121 ↗
30. Savory, J. G. Breakdown of timber by ascomycetes and fungi imperfecti. Ann. Appl. Biol. 41, 336–347 (1954).10.1111/j.1744-7348.1954.tb01126.x ↗
31. Zhang, J. et al. Localizing gene regulation reveals a staggered wood decay mechanism for the brown rot fungus Postia placenta. Proc. Natl Acad. Sci. 113, 10968–10973 (2016).10.1073/pnas.1608454113 ↗
32. Presley Gerald, N. & Schilling Jonathan, S. Distinct Growth and Secretome Strategies for Two Taxonomically Divergent Brown Rot Fungi. Appl. Environ. Microbiol. 83, e02987–16 (2017).
33. Blanchette, R. A. A review of microbial deterioration found in archaeological wood from different environments. Biodeteriation Cult. Prop. 2 Part 1 46, 189–204 (2000).
34. Schwarze, F. W. M. R. Wood decay under the microscope. Fungal Biol. Rev. 21, 133–170 (2007).10.1016/j.fbr.2007.09.001 ↗
35. Ladislav, R. Wood Deterioration, Protection and Maintenance (John Wiley & Sons, 2016).
36. Schmidt, O. Wood and Tree Fungi: Biology, Damage, Protection, and Use (Springer, 2006).
37. Manavalan, T., Manavalan, A. & Heese, K. Characterization of Lignocellulolytic Enzymes from White-Rot Fungi. Curr. Microbiol. 70, 485–498 (2015).10.1007/s00284-014-0743-0 ↗
38. Daniel, G. in Deterioration and Protection of Sustainable Biomaterials (eds. Schultz, T.P., Goodell, B., Nicholas, D.D.) Vol. 1158, 23–58 (American Chemical Society, 2014).
39. Daniel, G. In Wood Deterioration and Preservation: Advances in Our Changing World (eds. Goodell, B., Nicholas, D.D., Schultz, T.P.) Vol. 845, 34–72 (American Chemical Society, 2003).
40. Curling, S., Clausen, C. A. & Winandy, J. E. The Effect of Hemicellulose Degradation on the Mechanical Properties of Wood during Brown Rot Decay. Document No IRG/WP 01-20219, 10 p (International Research Group on Wood Preservation, 2001).
41. Schilling, J. S., Kaffenberger, J. T., Held, B. W., Ortiz, R. & Blanchette, R. A. Using wood rot phenotypes to illuminate the “gray” among decomposer fungi. Front. Microbiol. 11 (2020).10.3389/fmicb.2020.01288 ↗
42. Miller, K. E., Hopkins, K., Inward, D. J. G. & Vogler, A. P. Metabarcoding of fungal communities associated with bark beetles. Ecol. Evol. 6, 1590–1600 (2016).10.1002/ece3.1925 ↗
43. Garbelotto, M. & Johnson, M. G. High-throughput DNA metabarcoding of stem sections from trees with cavities describes fungal communities associated with variable wood decay. Position on Stem and Tree Species. Forests 14, 1070 (2023).
44. de Souza, L. M. D. et al. Diversity, distribution and ecology of fungal communities present in Antarctic lake sediments uncovered by DNA metabarcoding. Sci. Rep. 12, 8407 (2022).10.1038/s41598-022-12290-6 ↗
45. de Menezes, G. C. A. et al. Fungal diversity present on rocks from a polar desert in continental Antarctica assessed using DNA metabarcoding. Extremophiles 25, 193–202 (2021).10.1007/s00792-021-01221-4 ↗
46. Nguyen, N. H. et al. FUNGuild: An open annotation tool for parsing fungal community datasets by ecological guild. Fungal Ecol 20, 241–248 (2016).10.1016/j.funeco.2015.06.006 ↗
47. Blanchette, R., Held, B. W. & Jurgens, J. A. In Historical Polar Bases—Preservation and Management (eds Barr, S. &Chaplin, P.) 30–37 (International Polar Heritage Committee, 2008).
48. Flyen, A.-C. & Mattsson, J. Mine memories in Longyearbyen and Hiorthhamn. Protected Cable Car Pylons: Condition and Preservation (in Norwegian) (Gruveminner i Longyearbyen og Hiorthhamn). Fredete Taubanebukker: Tilstand Og Bevaring. http://hdl.handle.net/11250/2607975 (2013).
49. Flyen, A.-C. & Mattsson, J. Permafrost and foundation conditions for cultural heritage in Longyearbyen. Climate changes in Svalbard (in Norwegian) (Permafrost og fundamenteringsforhold for kulturminner i Longyearbyen. Klimaendringer på Svalbard). http://hdl.handle.net/11250/2607975 (2017).
50. Askeladden Database. Askeladden https://askeladden.ra.no/Askeladden (2025).
51. EN 252. Field test method for determining the relative protective effectiveness of a wood preservative in ground contact. (2015).
52. Alfredsen, G. et al. Sampling for Wood Decay Analyses of Cable Car Trestles and Houses at Svalbard. Field Report. https://nibio.brage.unit.no/nibio-xmlui/handle/11250/3050173 (2023).
53. Sharapov, E., Brischke, C., Militz, H. & Smirnova, E. Effects of white rot and brown rot decay on the drilling resistance measurements in wood. Holzforschung 72, 905–913 (2018).10.1515/hf-2017-0204 ↗
54. Belt, T., Altgen, M., Awais, M., Nopens, M. & Rautkari, L. Degradation by brown rot fungi increases the hygroscopicity of heat-treated wood. Int. Biodeterior. Biodegrad. 186, 105690 (2024).10.1016/j.ibiod.2023.105690 ↗
55. Glass, S. V., Boardman, C. R. & Zelinka, S. L. Short hold times in dynamic vapor sorption measurements mischaracterize the equilibrium moisture content of wood. Wood Sci. Technol. 51, 243–260 (2017).10.1007/s00226-016-0883-4 ↗
56. Jensen, P. & Gregory, D. J. Selected physical parameters to characterize the state of preservation of waterlogged archaeological wood: a practical guide for their determination. J. Archaeol. Sci. 33, 551–559 (2006).10.1016/j.jas.2005.09.007 ↗
57. Amiandamhen, S. O., Nagy, N. E., Fongen, M. & Alfredsen, G. Simultaneous Thermal Analysis for characterization of fungal depolymerisation of Norway spruce. Int. Biodeterior. Biodegrad. 186, 105687 (2024).10.1016/j.ibiod.2023.105687 ↗
58. Richter, H. G., Grosser, D. & Gasson, P. E. IAWA list of microscopic features for softwood identification. IAWA J 25, 1–70 (2004).10.1163/22941932-90000349 ↗
59. Gerards, T., Damblon, F., Wauthoz, B. & Gerrienne, P. Comparison of cross-field pitting in fresh, dried and charcoalified softwoods. IAWA J 28, 49–60 (2007).10.1163/22941932-90001618 ↗
60. Anagnost, S. E. Light Microscopic Diagnosis of Wood Decay. https://doi.org/10.1163/22941932-90001517 (1998).10.1163/22941932-90001517 ↗
61. Wang, Q., Garrity, G. M., Tiedje, J. M. & Cole, J. R. Naïve Bayesian classifier for rapid assignment of rRNA sequences into the new bacterial taxonomy. Appl. Environ. Microbiol. 73, 5261–5267 (2007).10.1128/AEM.00062-07 ↗
62. R Core Team. R: The R Project for Statistical Computing. https://www.r-project.org/ (2024).
63. Anagnost, S. E. & Smith, W. B. Hygroscopicty of decayed wood: implications for weight loss determinations. Wood Fiber Sci. 299–305 (1997).
64. Chauhan, S. S. & Nagaveni, H. C. Moisture adsorption behaviour of decayed rubber wood. J. Inst. Wood Sci. 19, 1–6 (2009).10.1179/002032009X12536100261953 ↗
65. Brischke, C., Stricker, S., Meyer-Veltrup, L. & Emmerich, L. Changes in sorption and electrical properties of wood caused by fungal decay. Holzforschung 73, 445–455 (2019).10.1515/hf-2018-0171 ↗
66. Belt, T. & Altgen, M. Changes in wood-water relations in acetylated wood over the course of Rhodonia placenta brown rot decay. J. Mater. Sci. Mater. Eng. 20, 19 (2025).10.1186/s40712-025-00228-5 ↗
67. Skaar, C. Wood-Water Relations|SpringerLink (Springer, 1988).10.1007/978-3-642-73683-4 ↗
68. Kránitz, K., Sonderegger, W., Bues, C.-T. & Niemz, P. Effects of aging on wood: a literature review. Wood Sci. Technol. 50, 7–22 (2016).10.1007/s00226-015-0766-0 ↗
69. de Souza, L. M. D. et al. Cryptic fungal diversity revealed by DNA metabarcoding in historic wooden structures at Whalers Bay, Deception Island, maritime Antarctic. Braz. J. Microbiol. 54, 213–222 (2023).10.1007/s42770-022-00869-0 ↗
70. Zhang, Y., Peng, Z., Song, Z. & Schilling, J. S. Repeated measures of decaying wood reveal the success and influence of fungal wood endophytes. mSystems 0, e00382–25 (2025).
71. Marais, B. N., Brischke, C., Militz, H., Peters, J. H. & Reinhardt, L. Studies into Fungal Decay of Wood In Ground Contact—Part 1: The Influence of Water-Holding Capacity, Moisture Content, and Temperature of Soil Substrates on Fungal Decay of Selected Timbers. Forests 11 (2020).10.3390/f11121284 ↗
72. Yamashita, S., Masuya, H., Abe, S., Masaki, T. & Okabe, K. Relationship between the decomposition process of coarse woody debris and fungal community structure as detected by high-throughput sequencing in a deciduous broad-leaved forest in Japan. PLOS ONE 10, e0131510 (2015).10.1371/journal.pone.0131510 ↗
73. Yang, C. et al. Higher fungal diversity is correlated with lower CO2 emissions from dead wood in a natural forest. Sci. Rep. 6, 31066 (2016).10.1038/srep31066 ↗
74. Saine, S. et al. Natural deadwood hosts more diverse pioneering wood-inhabiting fungal communities than restored deadwood. Restor. Ecol. 32, e14056 (2024).10.1111/rec.14056 ↗
75. Tanney, J. B. & Seifert, K. A. Mollisiaceae: An overlooked lineage of diverse endophytes. Stud. Mycol. 95, 293–380 (2020).10.1016/j.simyco.2020.02.005 ↗
76. Wheeler, D. L., Dung, J. K. S. & Johnson, D. A. From pathogen to endophyte: an endophytic population of Verticillium dahliae evolved from a sympatric pathogenic population. New Phytol 222, 497–510 (2019).10.1111/nph.15567 ↗
77. Seiboth, B. et al. in Biofuel Production—Recent Developments and Prospects (IntechOpen, 2011) https://doi.org/10.5772/16848.10.5772/16848 ↗
78. Mallette, N. D. Volatile Fuel & Organic Compound Production by Ascocoryne Sarcoides: Exploration of Environmental Variables and Analytical Methods (Montana State University, 2013).
79. Riley, R. et al. Extensive sampling of basidiomycete genomes demonstrates inadequacy of the white-rot/brown-rot paradigm for wood decay fungi. Proc. Natl. Acad. Sci. 111, 9923–9928 (2014).10.1073/pnas.1400592111 ↗
80. Abrego, N. Wood-inhabiting fungal communities: Opportunities for integration of empirical and theoretical community ecology. Fungal Community Struct. Dev. Funct. Decomposing Wood 59, 101112 (2022).
81. Lodge, D. J. Factors related to diversity of decomposer fungi in tropical forests. Biodivers. Conserv. 6, 681–688 (1997).10.1023/A:1018314219111 ↗
82. Krah, F.-S. et al. Evolutionary dynamics of host specialization in wood-decay fungi. BMC Evol. Biol. 18, 119 (2018).10.1186/s12862-018-1229-7 ↗
83. Flynn, K. A. A review of The Permeability, Fluid Flow, and Anatomy of Spruce (Picea spp.). Wood Fiber Sci. 278–284 (1995).
84. Wagenführ, R. Holzatlas (Fachbuchverlag Leipzig, 1996).
85. CEN. EN 350. Durability of Wood and Wood-based Products. Testing and Classification of the Durability to Biological Agents of Wood and Wood-based Materials (European Committee for Standardization, 2016).
86. Artsdatabanken. Red list 2021—Norwegian biodiversity information centere (in Norwegian) (Rødlista 2021—Artsdatabanken). https://artsdatabanken.no/lister/rodlisteforarter/2021/ (2021).
87. Veerabahu, A., Banik, M. T., Lindner, D. L., Pringle, A. & Jusino, M. A. Invasive golden oyster mushrooms are disrupting native fungal communities as they spread throughout North America. Curr. Biol. https://doi.org/10.1016/j.cub.2025.06.049.10.1016/j.cub.2025.06.049 ↗
88. Segers, F. J. J., Dijksterhuis, J., Giesbers, M. & Debets, A. J. M. Natural folding of airborne fungal spores: a mechanism for dispersal and long-term survival?. Fungal Biol. Rev. 44, 100292 (2023).10.1016/j.fbr.2022.10.005 ↗
89. Elven, R., Arnesen, G., Alsos, I. G. & Sandbakk, B. Svalbardflora. Svalbardflora https://www.svalbardflora.no/ (2020).
90. Blanchette, R. A., Held, B. W., Hellmann, L., Millman, L. & Büntgen, U. Arctic driftwood reveals unexpectedly rich fungal diversity. Fungal Ecol 23, 58–65 (2016).10.1016/j.funeco.2016.06.001 ↗
91. Goodell, B., Winandy, J. E. & Morrell, J. J. Fungal Degradation of Wood: Emerging Data, New Insights and Changing Perceptions. Coatings 10, 1210 (2020).10.3390/coatings10121210 ↗
92. Wilcox, W. W. Review of Literature on the Effects of Early Stages of Decay on Wood Strength. Wood Fiber Sci. 252–257 (1978).
93. Neelakanta, G. & Sultana, H. The use of metagenomic approaches to analyze changes in microbial communities. Microbiol. Insights 6, MBI.S10819 (2013).10.4137/MBI.S10819 ↗