Wood anatomy of the single spec ies of Cana comyrica (hitherto not studied) shows that it belongs in Myricaceae, although it differs from other genera in several respects (axial parenchyma grouped in bands or columns as well as diffuse ; Heterogeneou s Type I rays; more numerous bars per perforat ion plate). The latter two features are primitive for the family . The four genera (Canacomyrica. C...

Immunology, Phd In Science, Private Practice, Mexico City, Mexico. Background: The pollen dispersal by wind is a natural event of great biological significance and an etiological factor in the genesis of allergic respiratory diseases. This is the first such study carried out in the city of Toluca, Mexico. Objective: To present the data of collected pollen from September 2004 to September 2005. ...

BACKGROUND AND AIMS The amount of DNA in an unreplicated haploid nuclear genome (C-value) ranges over several orders of magnitude among plant species and represents a key metric for comparing plant genomes. To extend previously published datasets on plant nuclear content and to characterize the DNA content of many species present in one region of North America, flow cytometry was used to estima...

Immunology, Phd In Science, Private Practice, Mexico City, Mexico. Background: The pollen dispersal by wind is a natural event of great biological significance and an etiological factor in the genesis of allergic respiratory diseases. This is the first such study carried out in the city of Toluca, Mexico. Objective: To present the data of collected pollen from September 2004 to September 2005. ...

serum ige assay is a mainstay step in the allergy work up. allergenic extracts and molecular components are available at present. this real life study compared the serum specific ige levels against allergenic extracts with allergenic molecules in patients allergic to parietaria, betulaceae , and mites. this retrospective real life study included 489 subjects with respiratory allergy. inclusion ...

Immunology, Phd In Science, Private Practice, Mexico City, Mexico. Background: The pollen dispersal by wind is a natural event of great biological significance and an etiological factor in the genesis of allergic respiratory diseases. This is the first such study carried out in the city of Toluca, Mexico. Objective: To present the data of collected pollen from September 2004 to September 2005. ...