background: platanus species are widely cultured around the world and considered an important cause of allergic reactions. in the present study, we developed a sandwich elisa to quantify pla or 3 allergen in p. orientalis pollen extracts grown near high-traffic roads and compared it to pollen extracts collected from rural areas as control. methods: pollen samples were collected from three pollu...

pollen storage could facilitate the date palm hand pollination through saving time and space. the main concern is maintaining pollen viability, which is greatly cultivar dependent and is influenced by storage condition. in this study, to address this issue, the effects of cultivar, storage temperature, and time on pollen germination were investigated. a factorial experiment was laid out in a co...

Cupressaceae pollen has one of the highest pollen incidences in the Mediterranean area and is present in the atmosphere practically all year round, although it is predominant in the winter period, when no other plants are flowering, making this particle a powerful allergen. In Europe, allergy to Cupressaceae pollen was considered a rarity until 1975, but is now a recognized clinical entity, Bel...

a total of 65 pollen types were identified from two years atmospheric pollen survey in the environmental conditions of south assam. out of them, eight pollen types viz., acacia auriculiformis, amaranthus spinosus, cassia alata, cleome gynandra, cocos nucifera, imperata cylindrica, ricinus communis and trewia nudiflora, were selected for biochemical studies on the basis of their dominance in the...

nonea medik. is a genus of the boraginaceae tribe boragineae, with approximately 35 species worldwide. examination of their palynological characters supported the separation of taxa, which is usually based on morphological and micromorphological reproductive features. pollen grains of 10 taxa representing three groups of taxa in iran, the n. caspica group, the n. persica group and the n. lutea ...

allergic rhinitis (ar) is a very frequent disease which is not only characterized by nasal symptoms, but also with behavioural changes. this study evaluated the serum serotonin levels in patients with pollen-induced ar during and outside the pollen season. one-hundred-two  (56 females, 46 males, median age: 28.7 years) were included in this study: 56 with seasonal ar (sar) evaluated outside the...

A totall of 500 Early Permian samples from the Chal-i-Sheh Formation in the Zagros Basin were examined palynollogically in order to determine the stratigraphical age of the formation and to assess the palaeogeopaphicd relatianships of this basin to the Southern and Northern Hemispheres during the Early Permian. Fifty-eight taxa were recorded including 46 pollen, 10 spore and 2 acritarch spe...

pollen from mesquite (prosopis juliflora) is one of the important causes of immediate hypersensitivity reactions in the arid and semi-arid regions of the world. the aim of present study is to produce and purify the recombinant form of allergenic ole e 1-like protein from the pollen of this allergenic tree. immunological and cross-inhibition assays were performed for the evaluation of ige-bindin...

molecular evidence on the heterogeneity present in the ole e 1 allergen of the olive pollen is emerging. such polymorphism is dependent on the cultivar origin of pollen, which also determines wide differences in the expression of this protein. determination of biochemical and molecular characteristics of ole e 1 pollen allergen in two iranian olive cultivars, namely 'rowghani' and 'zard' is nec...

A semi-automatic system for pollen recognition is studied for the european project ASTHMA. The goal of such a system is to provide accurate pollen concentration measurements. This information can be used as well by the palynologists, the clinicians or a forecast system to predict pollen dispersion. At first, our emphasis has been put on Cupressaceae, Olea, Poaceae and Urticaceae pollen types. T...