Influence of intra- and inter-specific interference on terpene emission by Pinus halepensis and Quercus ilex seedlings.

Peñuelas J, Llusià J (1998) Influence of intra- and inter-specific interference on terpene emission by Pinus halepensis and Quercus ilex seedlings. Biologia Plantarum 41:139-143.

Can elevated CO2 affect secondary metabolism and ecosystem function?.

Peñuelas J, Estiarte M (1998) Can elevated CO2 affect secondary metabolism and ecosystem function?. Trends in Ecology and Evolution, 13:20-24.

Ground-based spectroradiometric estimation of live fine fuel moisture of Mediterranean plants.

Piñol J, Filella I, Ogaya R, Peñuelas J (1998) Ground-based spectroradiometric estimation of live fine fuel moisture of Mediterranean plants. Agricultural and Forest Meteorology 90:173-186.

Environmental change effects on source to sink ratio and carbon-based secondary compounds concentrations in plants.

Estiarte M, Peñuelas J (1998) Environmental change effects on source to sink ratio and carbon-based secondary compounds concentrations in plants. The Earth's Changing Land GCTE-LUCC Open Science Conference on Global Change Abstracts. Institut Cartogràfic de Catalunya, Barcelona, pp. s/n.

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

Biogenic emissions from Mediterranean vegetation. Effects of ozone concentrations.

Llusià J, Gimeno BS, Peñuelas J (1997) Biogenic emissions from Mediterranean vegetation. Effects of ozone concentrations. I. Technical Workshop on Tropospheric ozone pollution in Southern Europe. València.

Terpenoids and plant communication.

Llusià J, Estiarte M, Peñuelas J (1997) Terpenoids and plant communication. Butlletí de la Institució Catalana d´Història Natural 64:125 133.

Els canvis atmosfèrics com a recursos i moduladors de vida.

Peñuelas J (1997) Els canvis atmosfèrics com a recursos i moduladors de vida. Treballs de la Societat Catalana de Biologia 46:169-176.

Vers una teoria global de defensa química en plantes.

Castells E, Peñuelas J (1997) Vers una teoria global de defensa química en plantes. Orsis 12:141-162.

La fertilización carbónica en cultivos protegidos en clima mediterráneo.

Marfà O, Biel C, Peñuelas J, Montero JI, Guri S, Savé R (1997) La fertilización carbónica en cultivos protegidos en clima mediterráneo. Horticultura 118:68-69.

Pàgines