Limitaciones ecològicas de la producción del bosque mediterràneo.

Gracia C (1997) Limitaciones ecològicas de la producción del bosque mediterràneo. Ecosistemas 20-21:14-23.

An experimental OTC facility for the study of the effects of pollutant mixtures on Mediterranean tree species.

Barrantes O, Moliner E, Plaza M, Gracia C (1997) An experimental OTC facility for the study of the effects of pollutant mixtures on Mediterranean tree species. In Mohren GMJ, Kramer K, Sabaté S (eds) Impacts of global change on tree physiology and forest ecosystems. Kluwer, Dordrecht, pp.

Modelling the responses to climate change of a Mediterranean forest managed at different thinning intensities: effects on growth and water fluxes.

Gracia C, Sabaté S, Tello E (1997) Modelling the responses to climate change of a Mediterranean forest managed at different thinning intensities: effects on growth and water fluxes. In Mohren GMJ, Kramer K, Sabaté S (eds) Impacts of global change on tree physiology and forest ecosystems. Kluwer, Dordrecht, pp. 243-252.

Clearing of vegetation in Mediterranean garrigue: response after a wildfire.

Lloret F, Vilà M (1997) Clearing of vegetation in Mediterranean garrigue: response after a wildfire. Forest Ecology and Management 93:227-234.

Past fire regime along the 14th and 15th centuries in a Mediterranean mountain range of NE Iberic Peninsula from historical archives.

Lloret F, Marí G (1997) Past fire regime along the 14th and 15th centuries in a Mediterranean mountain range of NE Iberic Peninsula from historical archives. Medecos VIII: Global change and Mediterranean ecosystems. San Diego.

Effects of prolonged drought stress and nitrogen deficiency on the respiratory O2 uptake of bean and pepper leaves

González-Meler M.A., Matamala R., Peñuelas J. (1997) Effects of prolonged drought stress and nitrogen deficiency on the respiratory O2 uptake of bean and pepper leaves. Photosynthetica. 34: 505-512.
Enllaç
Doi: 10.1023/A:1006801210502

Resum:

We analyzed the combined effects of mild drought stress and severe nitrogen (N) deprivation on respiration of acclimated mature leaves of beans (Phaseolus vulgaris L. cv. Garrofal) and peppers (Capsicum annuum L., pure line B6). Rates of oxygen uptake were measured polarographically, and inhibitors were added to the closed cuvette to compare the effects of environmental stress on the cytochrome (cyt) and alternative pathways of mitochondrial respiration. Dark oxygen uptake was decreased by the water deficit treatment in both plants, and in the case of N limitation leaf respiration rates (R(D)) of peppers were also reduced. R(D) of leaves of beans and peppers grown under N-limiting conditions did not follow the decrease, in leaf N concentration, since R(D) expressed per unit of tissue N was considerably higher in the N-stressed leaves. Values obtained with specific inhibitors of the two terminal oxidases of mitochondrial respirations suggested that the cyt pathway of respiration was affected by mild drought and severe N stress. When plants were exposed to both environmental stresses, leaf respiration response was similar to that under N limitation, in this case the most severe stress.

Llegeix més

Homenatge a A. Vilalta.

Terradas J (1997) Homenatge a A. Vilalta. Catalunya Forestal 43:3-4.

Bosques, silvicultura y desafíos ambientales.

Terradas J (1997) Bosques, silvicultura y desafíos ambientales. Ecosistemas 20-21, pp. 8-13

Marcadores microsatélites en el tejón (Meles meles).

Domingo-Roura X, MacDonald DW, Roy MS, Wayne RK, Terradas J (1997) Marcadores microsatélites en el tejón (Meles meles). III Jornadas Españolas de conservación y Estuido de mamíferps, I Jornadas Ibéricas sobre la Nutria. Parc Natural dels Aiguamolls de l'Empordà. Castelló d'Empúries, SECEM, pp. 23.

Estudis del Centre de Recerca Ecològica i Aplicacions Forestals (CREAF) sobre ecosistemes terrestres.

Terradas J (1997) Estudis del Centre de Recerca Ecològica i Aplicacions Forestals (CREAF) sobre ecosistemes terrestres. In Recerques i reflexions sobre el medi ambient a Catalunya. Fundació Catalana per a la Recerca, 158 pp. Barcelona, pp. 117-140.

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