Tree-ring stable isotopes record the impact of a foliar fungal pathogen on CO₂ assimilation and growth in Douglas-fir Public Deposited

http://ir.library.oregonstate.edu/concern/articles/hq37vq11d

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by John Wiley & Sons Ltd. and can be found at:  http://onlinelibrary.wiley.com/journal/10.1111/%28ISSN%291365-3040.

Descriptions

Attribute NameValues
Alternative Title
  • Tree-ring stable isotopes record the impact of a foliar fungal pathogen on CO2 assimilation and growth in Douglas-fir
Creator
Abstract or Summary
  • Swiss needle cast (SNC) is a fungal disease of Douglas-fir (Pseudotsuga menziesii) that has recently become prevalent in coastal areas of the Pacific Northwest. We used growth measurements and stable isotopes of carbon and oxygen in tree-rings of Douglas-fir and a non-susceptible reference species (western hemlock, Tsuga heterophylla) to evaluate their use as proxies for variation in past SNC infection, particularly in relation to potential explanatory climate factors. We sampled trees from an Oregon site where a fungicide trial took place from 1996 to 2000, which enabled the comparison of stable isotope values between trees with and without disease. Carbon stable isotope discrimination (Δ¹³C) of treated Douglas-fir tree-rings was greater than that of untreated Douglas-fir tree-rings during the fungicide treatment period. Both annual growth and tree-ring Δ¹³C increased with treatment such that treated Douglas-fir had values similar to co-occurring western hemlock during the treatment period. There was no difference in the tree-ring oxygen stable isotope ratio between treated and untreated Douglas-fir. Tree-ring Δ¹³C of diseased Douglas-fir was negatively correlated with relative humidity during the two previous summers, consistent with increased leaf colonization by SNC under high humidity conditions that leads to greater disease severity in following years.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Saffell, B. J., Meinzer, F. C., Voelker, S. L., Shaw, D. C., Brooks, J. R., Lachenbruch, B. and McKay, J. (2014). Tree-ring stable isotopes record the impact of a foliar fungal pathogen on CO₂ assimilation and growth in Douglas-fir. Plant, Cell & Environment, 37(7), 1536–1547. doi:10.1111/pce.12256
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2014-07-18T18:38:12Z No. of bitstreams: 1 CherryMarilynForestrySurvivalGrowthPatterns.pdf: 944152 bytes, checksum: 37e024b172bfa2dfdde47d393fa4016d (MD5)
  • description.provenance : Made available in DSpace on 2014-07-18T18:38:35Z (GMT). No. of bitstreams: 1 CherryMarilynForestrySurvivalGrowthPatterns.pdf: 944152 bytes, checksum: 37e024b172bfa2dfdde47d393fa4016d (MD5) Previous issue date: 2014-07
  • description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2014-07-18T18:38:35Z (GMT) No. of bitstreams: 1 CherryMarilynForestrySurvivalGrowthPatterns.pdf: 944152 bytes, checksum: 37e024b172bfa2dfdde47d393fa4016d (MD5)

Relationships

In Administrative Set:
Last modified: 07/26/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items