Figure 3
From: Characterization of influenza virus sialic acid receptors in minor poultry species
Sialic acid distribution in avian large intestine. Representative sections of large intestine 4 week old from duck (A, B, C), goose (D, E, F), pheasant (G, H, I), turkey (J, K, L), quail (M, N, O), and guinea fowl (P, Q, R) stained with either DIG labeled MAA (α2,3 specific, first column), DIG labeled SNA (α2,6 specific, second column) or FITC SNA (green α2,6) and TRITC MAA (red α2,3). Duck, goose, and pheasant large intestine show both α2,3 SA and α2,6SA while the other species show only α2,3SA. Arrows highlight positive reactions.