IMMUNOLOGY: Vascular Origins

Independent origins of syringyl lignin in vascular plants.

Lycophytes arose in the early Silurian ( approximately 400 Mya) and represent a major lineage of vascular plants that has evolved in parallel with the ferns, gymnosperms, and angiosperms. A hallmark of vascular plants is the presence of the phenolic lignin heteropolymer in xylem and other sclerified cell types. Although syringyl lignin is often considered to be restricted in angiosperms, it has...

Immunology

Immunology.

The pathological changes involved in the immunological lung diseases of the bronchiolar region are reviewed. Next, the possibility that BOOP and DPB, two diseases whose causes are presently unknown, are caused by immune responses, is discussed.

Immunology

Immunology and Pathology: Poultry Immunology and Diseases

J. Anim. Sci. Vol. 88, E-Suppl. 2/J. Dairy Sci. Vol. 93, E-Suppl. 1/Poult. Sci. Vol. 89, E-Suppl. 1 648 Testosterone exposure alters embryonic bursal gene expression in chicken lines selected for differential antibody response. R. L. Taylor, Jr.*1, T. Burks1, C. Timmerman2, P. B. Siegel3, and C. M. Ashwell2, 1University of New Hampshire, Durham, 2North Carolina State University, Raleigh, 3Virgi...