PHA

Definition
noun
Abbreviation for phytohemagglutinin, a hemagglutinin derived from plants, especially beans.
Supplement
Phytohemagglutinins or PHA are lectins capable of causing agglutination of erythrocytes and leukocytes. They are extracted from common beans (Phaseolus vulgaris), white kidney beans, green beans, fava beans, etc. They have various physiological effects, one of which is causing mitogenic effects, especially on T lymphocytes.


You will also like...

An artistic depiction of a human embryo
Growth and Development of a Human Baby

Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..

Ploidy
Polyploidy

Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..

Homo Species
The Homo Species

The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..

Psychiatry and mental disorders
Psychiatry & Mental Disorders

Different mental disorders are described here. Read this tutorial to get an overview of schizophrenia, affective mood di..

The Human Physiology
The Human Physiology

Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiologic..

Still freshwater and plants
Still Freshwater & Plants

Plants in lentic habitats have features not found in terrestrial plants. They acquired these features as they adapt to t..