t207 Douglas fir

t207 Douglas fir Scientific Information

Type:

Whole Allergen

Display Name:

Douglas fir

Allergen code:

t207

Family:

Pinaceae

Latin Name:

Pseudotsuga taxifolia

Other Names:

Douglas fir tree, Oregon pine, yellow fir

Clinical Relevance

IgE mediated reactions

Anecdotal evidence suggests that asthma, allergic rhinitis and allergic conjunctivitis, similar to reactions caused by other members of this family, are possible following exposure to pollen from this tree; however, no specific studies have been reported to date.

The Douglas fir is not an important allergen in urbanized communities – except those situated close to Douglas fir plantations, where the prevalence of atopic sensitization to pollen from this tree is expected to be high.

Other reaction

The tussock moth caterpillar, occurring in forested areas of Oregon, was associated with itching of the skin and eyes, nasal discharge, cough, and, at times, respiratory difficulty in 41 of 428 individuals working in a forest. (1)

Molecular Aspects

No allergens from this plant have yet been characterized.

Cross-reactivity

Extensive cross-reactivity between the different individual species of the genus could be expected. (2)

Compiled By

Last Reviewed- April 2022

References

Press E, Googins JA, Poareo H, Jones K. Health hazards to timber and forestry workers from the tussock moth. Arch Environ Health 1977;32(5):206-210.
Yman L. Botanical relations and immunological cross-reactions in pollen allergy. 2nd ed. Pharmacia Diagnostics AB. Uppsala. Sweden. 1982: ISBN 91-970475-09