Abstract

THE use of blood group specific plant agglutinins as substitutes for naturally occurring or immune isoagglutinins is now widespread. Among the first to study the feasibility of plant seed extracts or lectins were Renkonen (1948) who observed seed extracts containing fairly strong anti-A1 and other extracts containing anti-O and anti-A2 agglutinins, Koulumies (1949 a, b) who used Vicia cracca and Cytisus sessilifolius in A1–A2 and A1B–A2B subgroupings, Boyd and Reguera (1949) and Bird (1952) who found that Dolichos biflorus was a reliable anti-A1 reagent.Bird (1953) suggested that the agglutination reactions of a wide variety of seed agglutinins might serve to distinguish the erythrocytes of various species. He was able to group nine mammals and two bird species into four groups using Ricinus communis, Dolichos lab lab, Vicia faba and Phaseolus lunatus. In a later paper (1954) Bird stated that he was able to distinguish between pigeon and…

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