Which reagent is made from the seeds of the plant Dolichos biflorus?

Which reagent is made from the seeds of the plant Dolichos biflorus?

• A. Anti-A1
• B. Anti-B
• C. Anti-A2
• D. Dolichos biflorus lectin

Answer: (A)

Dolichos biflorus seeds yield a plant lectin that binds specifically to the A1 antigen on red cells. In ABO testing, this seed-derived lectin is used to identify A1 by causing agglutination of A1 cells, while A2 cells are not strongly agglutinated. Because it reacts with the A antigen, this reagent is effectively used as an Anti-A reagent in certain testing contexts. It’s the Dolichos biflorus seed lectin that serves this role, commonly referred to as the A1-detecting lectin in practice.

Dolichos biflorus seeds yield a plant lectin that binds specifically to the A1 antigen on red cells. In ABO testing, this seed-derived lectin is used to identify A1 by causing agglutination of A1 cells, while A2 cells are not strongly agglutinated. Because it reacts with the A antigen, this reagent is effectively used as an Anti-A reagent in certain testing contexts. It’s the Dolichos biflorus seed lectin that serves this role, commonly referred to as the A1-detecting lectin in practice.