Pollen Allergens of some Road Trees, Shrubs and Herbs in Alexandria, Egypt

Sixteen different wild herbs, shrubs and planted road trees pollen grains subjected in this study. The pollen morphology has been examined, described and photographed by SEM, as well as their mineral and protein contents have been investigated. The results showed that pollinosis is not due to special element or protein contents inside the pollen taxa. Protein type is more important than protein concentration. As well as, allergy is not restricted to trees, shrubs or herbs but it depends on the amount of pollen grains in the air and combination between several factors as pollen grain density, air pollution and humidity which rehydrates the pollen to excrete its contents. This work recommends the organization in planting the road trees and not over planting the gardens and parks, as well as choosing the most appropriate taxa that can absorb pollutants. Plant diversity is more important to minimize...........