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Pollen Wall Antigens and Allergens: Taxonomically-ordered Variation Among Grasses
, Knox R.B.
Annals of Botany
, 1976. V. 40. No. 3. P. 399–408
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The antigenicity of pollens of 46 species from 36 genera representative of all the major groups of grasses, is examined by immuno-diffusion with antisera to the festucoid Lolium perenne and the chloridoid dactylon. Festucoid grasses show a high degree of immunological similarity with five Lolium antigens, with which grasses from other major groups show relatively little cross-reactivity. Only one Lolium antigen is present throughout the range of grasses tested. Taxonomic patterns are also apparent in tests using antiCynodon serum, the antigenic patterns with chloridoids being comparable with and no less complex than those of festucoids with anti-Lollum serum. The taxonomically ordered variation of grass pollen antigens involves both heat-labile and heat-stable (probably allergenic) fractions.