Sergio Rodríguez Jiménez

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We previously identified a cluster of d ormancy-a ssociated M ADS-box transcription factors (DAM genes) in peach [Prunus persica (L.) Batsch] as potential candidates for control of the non-dormant phenotype observed in the evg mutant. Of these genes, DAM3, DAM5 and DAM6 were winter expressed, suggesting a role for these genes during endodormancy. We used(More)
The effects of nitrogen source on iron deficiency responses were investigated in two Vitis genotypes, one tolerant to limestone chlorosis Cabernet Sauvignon (Vitis vinifera cv.) and the other susceptible Gloire de Montpellier (Vitis riparia cv.). Plants were grown with or without Fe(III)-EDTA, and with NO 3 − alone or a mixture of NO 3 − and NH 4 + .(More)
The changes in the root extract protein profile of the Prunus hybrid GF 677 rootstock (P. dulcis × P. persica) grown in hydroponics as affected by Fe deficiency and short-term (24 h) Fe resupply have been studied by 2-dimensional gel electrophoresis-based techniques. A total of 335 spots were consistently found in the gels. Iron deficiency caused above(More)
Epidemiological studies suggest that consumption of fruit rich in phenolic compounds is associated with health-protective effects due to their antioxidant properties. For these reasons quality evaluation has become an important issue in fruit industry and in breeding programs. Phytochemical traits such as total phenolics, flavonoids, anthocyanins,(More)
Iron deficiency induces several responses to iron shortage in plants. Metabolic changes occur to sustain the increased iron uptake capacity of Fe-deficient plants. We evaluated the metabolic changes of three Prunus rootstocks submitted to iron chlorosis and their different responses for tolerance using measurements of metabolites and enzymatic activities.(More)
An understanding of the mechanisms that determine plant response to reduced water availability is essential to improve water-use efficiency (WUE) of stone fruit crops. The physiological, biochemical and molecular drought responses of four Prunus rootstocks (GF 677, Cadaman, ROOTPAC 20 and ROOTPAC(®) R) budded with 'Catherina' peach cultivar were studied.(More)
The influence of CAB 6P, CAB 11E, Masto de Montañana (MM 9), MaxMa 14, MaxMa 97, GM 61/1 (Damil), Colt and Sainte Lucie GF 64 (SL 64) rootstocks on fruit quality of ‘Sunburst’ sweet cherry is studied. The experiment was performed in the Ebro Valley (Zaragoza, Spain), on a heavy and calcareous soil. To evaluate the effect of rootstocks, parameters such as(More)
Iron is an essential micronutrient for plant growth and development, involved in key cellular processes. However, the distribution of Fe in plant tissues is still not well known. In the so-called Fe chlorosis paradox, leaves of fruit trees grown in the field usually have high concentrations of Fe but still are Fe-deficient. Leaves of the Prunus rootstock GF(More)
BACKGROUND To identify genotypes with good organoleptic properties, antioxidant-rich content and low susceptibility to chilling injury (CI), fruits from 130 peach cultivars were studied over three consecutive years. Pomological traits, l-ascorbic acid, flavonoids, total phenolics, relative antioxidant capacity (RAC) and sugars were determined. Major(More)
A one-year study was conducted to measure the effects of balanced supplementation to improve biosustainability of a 110 head goat herd in Mexico in terms of economic feasibility on limited pasturing range land complemented with an alfalfa hay forage bank and grazing corn stubble. Average weight of adult females was 52.410 5 kg, yearlings 40.0 3 kg at ®rst(More)