José Luis Gómez Barroso

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Apricot (Prunus armeniaca) ‘Harcot’ anthers, were cultured in vitro for the production of haploid plants. The best androgenic response was achieved with Nitsch and Nitsch (1969) medium, supplemented with 4.52 μM 2,4-D, 4.52 μM zeatin, 2.85 μM IAA and 40 g l−1 sucrose. Cultures were maintained in the dark for 8 days, at 28°C, followed by transfer to a 16-h(More)
The Iberian lynx (Lynx pardinus) has a highly restricted geographic distribution, limited even within the Iberian Peninsula. The last national survey reported less than 200 remaining individuals, distributed in two isolated areas—Andújar-Cardeña and Doñana—and in consequence, the Iberian lynx was listed by the International Union for Conservation of Nature(More)
Endocardial mapping has suggested that common atrial flutter (AF) is based on right atrial reentry surrounding the inferior vena cava (IVC). The isthmus between the IVC and the tricuspid valve (TV) appears essential to close the circuit. To test this hypothesis, radiofrequency was applied to the IVC-TV isthmus, with catheter electrodes, in 9 patients with(More)
 Four ectomycorrhizal fungi (Amanita muscaria, Laccaria laccata, Piloderma croceum and Pisolithus tinctorius) were used to produce mycorrhiza on seedlings and micropropagated plants of Castanea sativa in vitro. Pisolithus tinctorius was most effective in colonizing roots of both micropropagated plants and seedlings. A. muscaria and L. laccata only colonized(More)
Recent studies have reported population right-biased lateralization in rats, although with low percentages (between 54-59%). The present study investigated the spatial preference of rats in an electrified T-maze during successive days and the influence of ascending dopaminergic systems using apomorphine, a dopamine agonist, as well as ipsilateral and(More)
The present theoretical framework of Alzheimer's disease proposes that pathophysiological changes occur 10-20 years before the diagnosis of dementia. We addressed the question of how age-related changes in gray matter mediate the cognitive performance during middle age. Eighty-two participants (40-50 years, ±2) were assessed with a comprehensive(More)
To investigate the neuropsychological profile in the first few years post-onset of relapsing-remitting multiple sclerosis (MS) we carried out a comprehensive neuropsychological evaluation of 33 patients characterized by very short evolution of this disease, minimal levels of neurological disability and preserved general cognition. Thirty-three individually(More)
BACKGROUND AND PURPOSE We have studied the relationship between neuropsychological impairment and magnetic resonance imaging (MRI) measures in mildly disabling relapsing-remitting multiple sclerosis (RRMS). METHODS We compared measures of lesion burden and atrophy in 52 patients with Expanded Disability Status Scale <or= 3.0. Neuropsychological testing(More)
Recently, we reported that practice facilitates the expression of the behavioral asymmetry in rats at individual and population levels. In the present study we investigated the side preference in the performance of four different tasks during 10 successive days. The practice increased individual laterality and internal consistency in all tasks. In addition,(More)
Although recognized as one of the most common hereditary diseases of the nervous system, the neuropsychological deficits in Friedreich's ataxia (FA) have rarely been studied. A protocol was constructed to assess the major cognitive areas in patients with FA and pair-matched normal controls. Motor difficulties, dysarthria and fatigability were taken into(More)