Contribución a la flora giennense

En el presente trabajo se comenta la ecología, corología y taxonomía de varias especies de la provincia de Jaén. Muchas de ellas se citan por vez primera en dicha provincia: Paronychia echinulata Chater, Silene stricta L., Leucojum trichophyllum Schouboe, Merendera androcymbioides Valdés, Romulea ramiflora Ten., Barlia robertiana (Loisel) W. Greuter, Sera�pias cordigera L., etc.In this paper we comment on the ecologic, chorologic and taxonomic behavior of several taxa in the province of Jaén (Spain). Several of these taxa are reported for the first time in the province: Paronychia echinulata Chater, Silene stricta L., Leucojum trichophyllu^ Schousboe, Merendera androcymbioides Valdés, Romulea ramiflora Ten., Barlia robertiana (Loisel) W. Grouter, Serapias cordigera L., etc

Aportación al estudio palinológico de la flora ornamental de la ciudad de Granada (España)

Se estudian los caracteres polínicos de 23 especies pertenecientes a la flora ornamental de la ciudad de Granada, utilizando microscopía óptica y microscopía electrónica de barrido, indicando su posible incidencia alergógena.The pollen characters of 23 species, representing the flora ornamental from the city of Granada (Spain), are studied by optical and scanning electron microscopy to determine allergenic incidence

Aportación al estudio palinológico de la flora ornamental de la ciudad de Granada (España)

The pollen characters of 23 species, representing the flora ornamental from the city of Granada (Spain), are studied by optical and scanning electron microscopy to determine allergenic incidence.Se estudian los caracteres polínicos de 23 especies pertenecientes a la flora ornamental de la ciudad de Granada, utilizando microscopía óptica y microscopía electrónica de barrido, indicando su posible incidencia alergógena

Aerobiological and allergenic analysis of Cupressaceae pollen in Granada (Southern Spain)

Cupressaceae pollen has been cited in recent years as one of the major airborne allergens of the Mediterranean region, prompting us to conduct an exhaustive analysis on the aerobiological behaviour of this pollen in the Iberian Peninsula and the repercussion that it has had on the atopic population. The aerobiological study, performed from 1996 to 2003 in the city of Granada (S. Spain), used a volumetric Hirst collector. The results indicate that this pollen is present in the air most of the year, registering a high incidence during the winter months. This type of pollen behaved irregularly in the air, fluctuating yearly, seasonally, and within the same day. Temperature and humidity were the parameters that most directly influence the variability of this allergen, while rainfall prior to flowering increased pollen production. The predictive models used estimated a high percentage of the levels reached over the short term by this pollen in the atmosphere of Granada. The clinical study performed with atopic patients showed that some 30% of the population with pollinosis are sensitive to Cupressaceae pollen, affecting people of both genders equally. On the other hand, the most sensitive age group was 21-40 years of age, while children and the elderly registered almost negligible values. Most of the sensitive subjects resided within the city or in the metropolitan area, where environmental pollution reached high levels, while the pathology was found to be less frequent in rural zones. The most frequent symptoms were upper-respiratory ailments and an asthmatic profile.En los últimos años el polen de Cupressaceae se ha considerado uno de los principales alérgenos aéreos de la región Mediterránea, lo que motivó la realización de un análisis exhaustivo del comportamiento aerobiológico de este polen en la Península Ibérica y de la repercusión que tenía en la población atópica. En el estudio aerobiológico, llevado a cabo entre 1996 y 2003 en la ciudad de Granada (sur de España), se utilizó un captador volumétrico tipo Hirst. Los resultados indican que este polen se encuentra presente en el aire la mayor parte del año, pero registra una alta incidencia en los meses de invierno. Este tipo de polen mostró un comportamiento irregular en el aire, con fluctuaciones anuales, estacionales y en un mismo día. La temperatura y la humedad fueron los parámetros que influyeron más directamente en la variabilidad de este alérgeno, mientras que la lluvia antes de la floración incrementó la producción de polen. Los modelos predictivos utilizados estimaron un porcentaje elevado de los niveles alcanzados a corto plazo por este polen en la atmósfera de Granada. El estudio clínico realizado con pacientes atópicos mostró que un 30% de la población con polinosis es sensible al polen de Cupressaceae, afectando a ambos sexos por igual. Por otra parte, el grupo de edad más sensible fue el de 21 a 40 años, mientras que los niños y los ancianos registraron valores casi insignificantes. La mayoría de los sujetos sensibles residían en el núcleo urbano o en el área metropolitana, donde la contaminación ambiental alcanza niveles elevados, mientras que la patología fue menos frecuente en la zona rural. Los síntomas más frecuentes fueron afecciones de las vías respiratorias altas y un perfil asmático.The authors wish to thank the Spanish Ministry of Science and Technology for financing this study with the “Análisis de la actividad alergénica de la atmósfera” project (BOS2002-03474)

Quercus airborne pollen tendencies in the south of Iberian Peninsula, its correlation with meteorological trends and possible effect of the climatic change in Mediterranean forests

Resumen enviado, aceptado y publicado en el libro de resúmenes titulado "Pollen3013. 2nd International APLE APLF Congres", celebrado en septiembre de 2'13 en Madrid.Universidad de Málag

Airborne Cupressaceae Pollen and Its Major Allergen, Cup a 1, in Urban Green Areas of Southern Iberian Peninsula

Cupressaceae pollen is responsible for winter respiratory allergies in the Mediterranean area. Pollen grains of this diverse family share the same characteristics under light microscopy. Consequently, the partial contribution of each Cupressaceae species to the airborne pollen spectrum cannot be determined with conventional aerobiological methods. Studies on major aeroallergens offer better information on the allergic sensitization and appearance of symptoms in patients sensitized to airborne pollen and spores. Our aim was to determine if airborne Cupressaceae pollen concentrations correspond to aerodynamics of the major allergen of Cupressus (Cup a 1), as well as the aeroallergen correlation with different-sized particles. The air was sampled in two cities of Southern Spain (Granada and Córdoba) using the Hirst-type volumetric sampler for airborne pollen detection during 2006 to 2008 and the Andersen Cascade Impactor for aeroallergen detection during the main pollination period of Cupressaceae in the same period. The samples were analyzed by the methodology proposed by the Spanish Aerobiology Network (REA), the minimum requirements of the European Aeroallergen Society (EAS) for pollen, and by ELISA immunoassay to detect airborne Cup a 1. The distribution patterns of airborne Cupressaceae pollen and Cup a 1 were observed throughout the sampling period, although with some irregular oscillations. Cupressaceae pollen and Cup a 1 showed positive and significant correlation during the period of maximum concentrations (January to March). However, the results of this study showed that the period of exposure of aeroallergens depends on the Cupressus species and their abundance in cities. According to the allergy potential obtained, species like C. arizonica could release more allergens than other species like C. sempervirens.Ministry of Science and Technology I + D + I of Spain CGL2006-1648-CO3-02Andalusian Government RNM 011