IMMUNOLOGY

Detailed explanation-1: -Later, zeatin was identified as the first naturally occurring cytokinin in immature maize endosperm (Letham, 1973), and turns out to be the predominant cytokinin in coconut milk.

Detailed explanation-2: -Zeatin is a cytokinin derived from adenine, which occurs in the form of a cis-and a trans-isomer and conjugates. Zeatin was discovered in immature corn kernels from the genus Zea. It promotes growth of lateral buds and when sprayed on meristems stimulates cell division to produce bushier plants.

Detailed explanation-3: -The most common form of naturally occurring cytokinin in plants is zeatin, but many other natural cytokinins have been isolated, including dihydrozeatin, isopentenyladenine, or benzyladenine. Cytokinins are present in most plant tissues. They are mainly biosynthesized in situ.

Detailed explanation-4: -Zeatin is a plant growth hormone in the cytokinin family. It consists of a purine ring structure with a side chain that contains hydroxyl, amino, and olefin groups. It was discovered in the corn genus Zea, for which it is named. Zeatin and other cytokinins are produced in plants’ root systems.