RT Book, Section
T1 Pigment ratios of the mediterranean bryophyte pleurochaete squarrosa respond to simulated nitrogen deposition
A1 Ochoa Hueso, Raúl
A1 Paradela, Cristina
A1 Pérez Corona, María Esther
A1 Manrique Reol, Esteban
A2 Sutton, Mark A.
A2 Mason, Kate E.
A2 Sheppard, Lucy J.
A2 Sverdrup, Harald
A2 Haeuber, Richard
A2 Hicks, W. Kevin
AB Nitrogen (N) deposition alters ecosystem structure and functioning. To study potential impacts on Mediterranean ecosystems, we designed a field fertilization experiment where NH4NO3 was added at four rates (0, 10, 20 and 50 kg N ha−1 year−1). The terricolous moss Pleurochaete squarrosa was sampled and pigments extracted in spring-autumn 2008 and spring 2009. Simulated N deposition increased lutein and VAZ pigments to chlorophyll ratios in autumn 2008; β-carotene to chlorophyll ratio was reduced in spring 2009; (neoxantin + lutein) to β-carotene increased with N supply and this was explained as higher investment in light-harvesting complexes than in reaction centres. Response of carotene to chlorophylls and of (neoxantin + lutein)/β-carotene to N enrichment were only evident when soil NH4 and Mn, respectively, were used as covariates. Thus, covariance analyses are highly recommended to detect N fertilization effects on terricolous species when field experiments are set up in highly heterogeneous environments.
PB Springer Netherlands
SN 978-94-007-7938-9
YR 2014
FD 2014
LK https://hdl.handle.net/20.500.14352/129034
UL https://hdl.handle.net/20.500.14352/129034
LA eng
NO Ochoa-Hueso, R., Paradela, C., Pérez-Corona, M., Manrique, E. (2014). Pigment Ratios of the Mediterranean Bryophyte Pleurochaete squarrosa Respond to Simulated Nitrogen Deposition. In: Sutton, M., Mason, K., Sheppard, L., Sverdrup, H., Haeuber, R., Hicks, W. (eds) Nitrogen Deposition, Critical Loads and Biodiversity. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-7939-6_23
NO Proceedings of the International Nitrogen Initiative Workshop, linking experts of the Convention on Long-Range Transboundary Air Pollution and the Convention on Biological Diversity.
NO Ministerio de Educación y Ciencia (España)
NO Comunidad de Madrid
DS Docta Complutense
RD 26 feb 2026