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a lectin isolated from the red kidney bean (Phaseolus vulgaris); it is a hemagglutinin that agglutinates mammalian erythrocytes and a mitogen that stimulates predominantly T lymphocytes. Abbreviated PHA.
A phytomitogen from plants that agglutinates red blood cells. The term is commonly used specifically to refer to the lectin obtained from the red kidney bean (Phaseolus vulgaris), which is also a mitogen that stimulates T lymphocytes more vigorously than B lymphocytes.
phytohemagglutinin/phy·to·hem·ag·glu·ti·nin/ (-hem″ah-glldbomact´in-in) a hemagglutinin of plant origin.
Any of various hemagglutinins found in plants. Phytohemagglutinins are abundant in certain uncooked beans and can be toxic if ingested.
Etymology: Gk, phyton, plant, haima, blood; L, agglutinare, to glue
a hemagglutinin that is derived from a plant, specifically the lectin obtained from the red kidney bean. Also called phytolectin.
a hemagglutinin of plant origin.