Search results for " palm"
showing 10 items of 147 documents
Rhynchophorus ferrugineus: Behavior, Ecology, and Communication
2017
Red palm weevil (RPW) ecology is characterized by the adults' ability to aggregate on palms. The aggregation process has the functions of protection, feeding, and reproduction for the individuals. Semiochemicals and visual cues strongly influence this behavior at intraspecific and interspecific levels. Adults actively fly over long distances, following chemical cues, such as aggregation pheromone and host plant odor, or visual cues to colonize a new host. The aggregation pheromone of RPW is a male-produced mixture of 4-methyl-5-nonanol (major component) and the related ketone 4-methyl-5-nonanone (minor component). These compounds are largely used in the field to lure males and especially fe…
Toward the valorization of olive (Olea europaea var. europaea L.) biodiversity: horticultural performance of seven Sicilian cultivars in a hedgerow p…
2019
Abstract An intense survey of the Sicilian’s olive growing areas for autochthonous germplasm, mainly represented by centennials olive trees (Olea europaea var. europaea L.) apparently older then III centuries, started at the beginning of the 1980s and resulted in the selection of more than 150 cultivars and accessions. This germplasm was propagated in a nursery, by grafting onto seedlings of Olea europaea L., and planted in an experimental orchard, in an olive district located in the South-west of the Island, where they were evaluated for over 30 years and selected for their early bearing, high and constant productivity, as well as high oil content of the fruits and excellent chemical (olei…
Action Programs for Rhynchophorus ferrugineus and Paysandisia archon
2017
The spread of invasive alien species is strongly associated with the rapid acceleration of human trade, tourism, transport, and travel over the past century, which have allowed these species to overcome natural geographic barriers. The best strategy to prevent the spread of invasive species is quarantine and eradication of initial foci. However, when invasive species appear to be established, the best approach should focus on containment and decreasing their impact through specific control measures. In this context, considering the rapid spread of the two palm pest species recently introduced in the Mediterranean area-Rhynchophorus ferrugineus (red palm weevil, RPW) and Paysandisia archon (…
Urban landscape evolution as a consequence of an invasive pest: The case of a small sicilian town
2017
The Red Palm Weevil (RPW), after its accidental introduction in Italy in 2005, determined a progressive disruption of Canary palms mostly in the central and southern regions. As it is difficult to undertake the management of this pest, the possibility of substituting the killed/symptomatic palms with other ornamental trees has been recently discussed. In this context, understanding the citizens' needs about green areas can improve the management of public parks and urban greening. Involving citizens on the natural resource management using public participation processes is crucial. The case study of a small town of Sicily (Italy) was treated and the spread of this pest was monitored. Moreov…
Novel subpopulations in date palm (Phoenix dactylifera) identified by population-wide organellar genome sequencing
2019
Background The date palm is one of the oldest cultivated fruit trees. The tree can withstand high temperatures and low water and the fruit can be stored dry offering nutrition across the year. The first region of cultivation is believed to be near modern day Iraq, however, where and if the date palm was domesticated is still a topic of debate. Recent studies of chloroplast and genomic DNA revealed two major subpopulations of cultivars centered in both the Eastern range of date palm cultivation including Arabian Peninsula, Iraq and parts of South Asia, and the Western range, including North Africa. Results To better understand the origins of date palm cultivation we sequenced and analyzed ov…
Exposure to a Highly Caloric Palatable Diet During Pregestational and Gestational Periods Affects Hypothalamic and Hippocampal Endocannabinoid Levels…
2016
Journal Article; Exposure to unbalanced diets during pre-gestational and gestational periods may result in long-term alterations in metabolism and behavior. The contribution of the endocannabinoid system to these long-term adaptive responses is unknown. In the present study, we investigated the impact of female rat exposure to a hypercaloric-hypoproteic palatable diet during pre-gestational, gestational and lactational periods on the development of male offspring. In addition, the hypothalamic and hippocampal endocannabinoid contents at birth and the behavioral performance in adulthood were investigated. Exposure to a palatable diet resulted in low weight offspring who exhibited low hypotha…
Sphingolipids and Inositol Phosphates Regulate the Tau Protein Phosphorylation Status in Humanized Yeast
2020
Hyperphosphorylation of protein tau is a hallmark of Alzheimer’s disease (AD). Changes in energy and lipid metabolism have been correlated with the late onset of this neurological disorder. However, it is uncertain if metabolic dysregulation is a consequence of AD or one of the initiating factors of AD pathophysiology. Also, it is unclear whether variations in lipid metabolism regulate the phosphorylation state of tau. Here, we show that in humanized yeast, tau hyperphosphorylation is stimulated by glucose starvation in coincidence with the downregulation of Pho85, the yeast ortholog of CDK5. Changes in inositol phosphate (IP) signaling, which has a central role in energy metabolism, altere…
Functional differences between l- and d-carnitine in metabolic regulation evaluated using a low-carnitine Nile tilapia model.
2019
Abstractl-Carnitine is essential for mitochondrialβ-oxidation and has been used as a lipid-lowering feed additive in humans and farmed animals.d-Carnitine is an optical isomer ofl-carnitine anddl-carnitine has been widely used in animal feeds. However, the functional differences betweenl- andd-carnitine are difficult to study because of the endogenousl-carnitine background. In the present study, we developed a low-carnitine Nile tilapia model by treating fish with a carnitine synthesis inhibitor, and used this model to investigate the functional differences betweenl- andd-carnitine in nutrient metabolism in fish.l- ord-carnitine (0·4 g/kg diet) was fed to the low-carnitine tilapia for 6 wee…
Palmitic Acid: Physiological Role, Metabolism and Nutritional Implications
2017
Palmitic acid (PA) has been for long time negatively depicted for its putative detrimental health effects, shadowing its multiple crucial physiological activities. PA is the most common saturated fatty acid accounting for 20–30% of total fatty acids in the human body and can be provided in the diet or synthesized endogenously via de novo lipogenesis (DNL). PA tissue content seems to be controlled around a well-defined concentration, and changes in its intake do not influence significantly its tissue concentration because the exogenous source is counterbalanced by PA endogenous biosynthesis. Particular physiopathological conditions and nutritional factors may strongly induce DNL, resulting i…
Análisis de la función de los espacios culturales en la redefinición de las políticas culturales de las ciudades. Un estudio de los casos de las área…
2021
Esta tesis aborda la relación entre los espacios culturales y las políticas culturales, específicamente en el ámbito urbano. Concretamente, en este proyecto de investigación argumentamos, en primer lugar, que las políticas culturales urbanas y las políticas de creación de espacios culturales están regidas por una misma lógica se articulan en un todo funcional al paradigma dominante de política cultural (en la que los espacios culturales son a la vez derivada y condición del modelo de democratización cultural). En segundo lugar, sostenemos que los espacios culturales son la clave de bóveda de las políticas de democratización cultural, en tanto que constituyen la herramienta principal de su m…