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

Autor: Freitag S; Environmental Research Institute, University of the Highlands and Islands Thurso 14 7JD, UK., Hogan EJ, Crittenden PD, Allison GG, Thain SC
Jazyk: angličtina
Zdroj: Physiologia plantarum [Physiol Plant] 2011 Oct; Vol. 143 (2), pp. 107-14. Date of Electronic Publication: 2011 Jul 25.
DOI: 10.1111/j.1399-3054.2011.01484.x
Abstrakt: 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.
(Copyright © Physiologia Plantarum 2011.)
Databáze: MEDLINE
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