Juan Pedro Ferrio | CSIC (Consejo Superior de Investigaciones Científicas-Spanish National Research Council) (original) (raw)

Papers by Juan Pedro Ferrio

HAL (Le Centre pour la Communication Scientifique Directe), Dec 8, 2019

DOAJ (DOAJ: Directory of Open Access Journals), 2006

Desde la aparición de las primeras plantas terrestres, hace unos 500 millones de años, una de las... more Desde la aparición de las primeras plantas terrestres, hace unos 500 millones de años, una de las principales "preocupaciones" de los vegetales ha sido la pérdida de agua. Las plantas superiores han desarrollado diversas estructuras que limitan la libre evaporación del agua (epidermis, cutícula, corteza). Así, las pérdidas de agua se concentran en las hojas y, más específicamente, a través de pequeñas aperturas en la epidermis, de diámetro regulable: los estomas. Mediante los

Tree Physiology, Apr 15, 2016

Forest Systems, Apr 1, 2015

European Journal of Forest Research, Oct 23, 2018

Water and carbon fluxes in forests are largely related to leaf gas exchange physiology 27 varying... more Water and carbon fluxes in forests are largely related to leaf gas exchange physiology 27 varying across spatiotemporal scales and modulated by plant responses to environmental cues. 28 We quantified the relevance of genetic and phenotypic variation of intrinsic water-use 29 efficiency (WUEi, ratio of net photosynthesis to stomatal conductance of water) in Pinus 30 sylvestris L. growing in the Iberian Peninsula as inferred from tree-ring carbon isotopes. Inter-31 population genetic variation, evaluated in a provenance trial comprising Spanish and German 32 populations, was low and relevant only at continental scale. In contrast, phenotypic variation, 33 evaluated in natural stands (at spatial level) and by tree-ring chronologies (at temporal inter-34 annual level), was important and ten-and threefold larger than the population genetic 35 variance, respectively. These results points to preponderance of plastic responses dominating 36 variability in WUEi for this species. Spatial phenotypic variation in WUEi correlated 37 negatively with soil depth (r=-0.66; p<0.01), while temporal phenotypic variation was mainly 38 driven by summer precipitation. At the spatial level, WUEi could be scaled-up to ecosystem-39 level WUE derived from remote sensing data by accounting for soil water holding capacity 40 (r= 0.63; p<0.01). This outcome demonstrates a direct influence of the variation of leaf-level 41 WUEi on ecosystem water and carbon balance differentiation. Our findings highlight the 42 contrasting importance of genetic variation (negligible) and plastic responses in WUEi (large, 43 with changes of up to 33% among sites) on determining carbon and water budgets at stand 44 and ecosystem scales in a widespread conifer such as Pinus sylvestris.

Plant Cell and Environment, Mar 30, 2017

Management of Environmental Quality: An International Journal, Mar 1, 2003

In this work we will discuss the suitability of carbon isotope analysis in plants for the assessm... more In this work we will discuss the suitability of carbon isotope analysis in plants for the assessment of environmental changes and their effects on crops and natural systems. For C 3 species, carbon isotope composition (d 13 C) of plant tissues constitutes an integrated record of the miscellaneous climatic and physiological factors that affect carbon assimilation and/or stomatal conductance. Here we present a literature review on the relationship between different environmental parameters and d 13 C in both herbaceous plants and trees, including some examples and case studies. We will also consider the applicability of some of these relationships in palaeoecological studies, as well as for the assessment of climate change dynamics and its implications. Major advantages and limitations of this technique are further discussed.

Investigación agraria, Dec 1, 2005

The use of stable isotope techniques in forest ecology research has grown steadily over the last ... more The use of stable isotope techniques in forest ecology research has grown steadily over the last two decades. This trend will continue, as stable isotopes can serve as valuable integrators of how plants have interacted, today and in the past, with their physical environment or with other organisms. This is particularly relevant in dry areas due to the strong limitation of resources. After a brief introduction about the theoretical background of stable isotopes in plant physiology, this review highlights recent advances in forest ecology that have embraced this methodology, at different spatial and temporal scales, and with special emphasis on arid and semi-arid systems.

European Journal of Plant Pathology, Nov 28, 2013

Salicylic acid (SA) is an inducer of systemic acquired resistance (SAR) and could be a potential ... more Salicylic acid (SA) is an inducer of systemic acquired resistance (SAR) and could be a potential candidate in the control of plant virus diseases. In this study we assayed under controlled conditions the potential effect of three doses of exogenous SA treatment on tomato plants infected with Potato virus X (PVX) and measured their effects on: different physiological parameters (gas exchange, stable isotopes, chlorophyll content), the activation of secondary metabolism, viral accumulation and induction of the expression of pathogenesis-related proteins (PRs) such as ß-1, 3glucanase (PR2) and chitinase (PR3). SA treatment increased the expression of PR2, the activity of phenylalanine ammonia lyase (PAL) and the concentration of antioxidant compounds at 7 days post-treatment. Earlier expression of PR3 compared to PR2 was observed. SA treatment delayed the detection of PVX by ELISA in uninoculated leaves of mechanically infected tomato plants. Although the effect of PVX infection on physiological parameters was weak, moderate SA treatments showed enhanced photosynthesis, particularly for infected plants. The results obtained confirm that SA promotes major changes in the induction of resistance in tomato plants and suggest that treatment with exogenous SA could be considered to reduce the infections caused by PVX.

Agricultural and Forest Meteorology

The existence of sclerophyllous plants has been considered an adaptive strategy against different... more The existence of sclerophyllous plants has been considered an adaptive strategy against different environmental stresses. As it literally means “hard-leaved”, it is essential to quantify the leaf mechanical properties to understand sclerophylly. However, the relative importance of each leaf trait on mechanical properties is not yet well established. The genusQuercusis an excellent system to shed light on this since it minimizes phylogenetic variation while having a wide variation in sclerophylly. Thus, leaf anatomical traits and cell wall composition were measured, analyzing their relationship with LMA and leaf mechanical properties in a set of 25 oak species. Outer wall contributed strongly to leaf mechanical strength. Moreover, cellulose plays a critical role in increasing leaf strength and toughness. The PCA plot based on leaf trait values clearly separatedQuercusspecies into two groups corresponding to evergreen and deciduous species. SclerophyllousQuercusspecies are tougher and...

Tree Physiology

Leaves of Mediterranean evergreen tree species experience a reduction in net CO2 assimilation (AN... more Leaves of Mediterranean evergreen tree species experience a reduction in net CO2 assimilation (AN) and mesophyll conductance to CO2 (gm) during aging and senescence, which would be influenced by changes in leaf anatomical traits at cell level. Anatomical modifications can be accompanied by the dismantling of photosynthetic apparatus associated to leaf senescence, manifested through changes at the biochemical level (i.e., lower nitrogen investment in photosynthetic machinery). However, the role of changes in leaf anatomy at cell level and nitrogen content in gm and AN decline experienced by old non-senescent leaves of evergreen trees with long leaf lifespan is far from being elucidated. We evaluated age-dependent changes in morphological, anatomical, chemical and photosynthetic traits in Quercus ilex subsp. rotundifolia Lam., an evergreen oak with high leaf longevity. All photosynthetic traits decreased with increasing leaf age. The relative change in cell wall thickness (Tcw) was le...

EGU General Assembly Conference Abstracts, May 1, 2014

Frontiers in Plant Science, 2022

The search for a universal explanation of the altitudinal limit determined by the alpine treeline... more The search for a universal explanation of the altitudinal limit determined by the alpine treeline has given rise to different hypotheses. In this study, we revisited Michaelis’ hypothesis which proposed that an inadequate “ripening” of the cuticle caused a greater transpiration rate during winter in the treeline. However, few studies with different explanations have investigated the role of passive mechanisms of needles for protecting against water loss during winter in conifers at the treeline. To shed light on this, the cuticular transpiration barrier was studied in the transition from subalpine Pinus uncinata forests to alpine tundra at the upper limit of the species in the Pyrenees. This upper limit of P. uncinata was selected here as an example of the ecotones formed by conifers in the temperate mountains of the northern hemisphere. Our study showed that minimum leaf conductance in needles from upper limit specimens was higher than those measured in specimens living in the lowe...

New Phytologist, 2022

SummaryWe compiled hydrogen and oxygen stable isotope compositions (δ2H and δ18O) of leaf water f... more SummaryWe compiled hydrogen and oxygen stable isotope compositions (δ2H and δ18O) of leaf water from multiple biomes to examine variations with environmental drivers. Leaf water δ2H was more closely correlated with δ2H of xylem water or atmospheric vapour, whereas leaf water δ18O was more closely correlated with air relative humidity. This resulted from the larger proportional range for δ2H of meteoric waters relative to the extent of leaf water evaporative enrichment compared with δ18O. We next expressed leaf water as isotopic enrichment above xylem water (Δ2H and Δ18O) to remove the impact of xylem water isotopic variation. For Δ2H, leaf water still correlated with atmospheric vapour, whereas Δ18O showed no such correlation. This was explained by covariance between air relative humidity and the Δ18O of atmospheric vapour. This is consistent with a previously observed diurnal correlation between air relative humidity and the deuterium excess of atmospheric vapour across a range of ...

Science of The Total Environment, 2020

This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.