Alterations in the metabolic fingerprint of Cladonia portentosa in response to atmospheric nitrogen deposition

Sabine Freitag, Erika J. Hogan, Peter D. Crittenden, Gordon G. Allison, Simon C. Thain

Research output: Contribution to journalArticlepeer-review

6 Citations (SciVal)

Abstract

Nitrogen availability has profound ecological consequences in nutrient-limited systems. In terrestrial settings these would include the upland heaths, sand dunes and blanket bogs of temperate latitudes. Understanding the physiological consequences of nitrogen enrichment is a first critical step in predicting possible consequences. Results are presented from a metabolic fingerprinting study using Fourier transform-infrared spectroscopy (FTIR) to detect biochemical differences in the lichen Cladonia portentosa collected from 25 sites across mainland Britain varying in their nitrogen input. Partial least-squares regression analysis of the FTIR data demonstrated that changes in broad biochemical classes were consistently correlated with mean annual wet inorganic nitrogen deposition loads. These results demonstrated a direct coupling of a broad range of metabolic processes in C. portentosa to nitrogen deposition.
Original languageEnglish
Pages (from-to)107-114
Number of pages8
JournalPhysiologia Plantarum
Volume143
Issue number2
Early online date25 Jul 2011
DOIs
Publication statusPublished - Oct 2011

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