WebOct 31, 2006 · Since the discovery of cytokinins as inducers of plant cell division and differentiation , they have been recognized as central regulators of plant development . Cytokinins also increase nutrient sink strength, delay senescence, stimulate outgrowth from lateral buds, and inhibit cell elongation ( 4 ). WebAug 14, 2001 · Cytokinins were discovered during the 1950s because of their ability to induce plant cell division ().Shortly after their discovery, Skoog and Miller coined the auxin–cytokinin hypothesis of plant morphogenesis ().The hypothesis predicted that cytokinin, together with auxin, plays an essential role in plant morphogenesis, having a …
The Discovery of Cytokinins Discoveries in Plant Biology
Cytokinins (CK) are a class of plant hormones that promote cell division, or cytokinesis, in plant roots and shoots. They are involved primarily in cell growth and differentiation, but also affect apical dominance, axillary bud growth, and leaf senescence. There are two types of cytokinins: adenine-type cytokinins represented by kinetin Web摘要： This chapter focuses on growth regulators in plants, particularly cytokinins, their biological activities, discovery, mode of action, uptake and metabolism, the types and biosynthesis of naturally occurring cytokinins, synthetic cytokinin analogues, and effects in tissue culture and plant organs. philip a. wallach
Effect of Plant Hormones & Micro nutrients on Fruit Production: A …
WebAbstract. Since their discovery in the 1950s, it has been established that cytokinins (CKs) play important regulatory roles in various physiological processes in plants. Only recently have CKs been also implicated in the response of plants to biotic and abiotic stresses. During the last years, several analytical methods have been developed to ... WebCytokinins are plant-specific chemical messengers (hormones) that play a central role in the regulation of the plant cell cycle and numerous developmental processes. Cytokinins were discovered by F Skoog, C Miller, and co-workers during the 1950s as factors that promote cell division (cytokinesis). The first cytokinin discovered was an adenine ... WebOct 6, 2024 · The discovery of cytokinins was closely associated with plant tissue culture. Miller et al. ( 1955) added old herring sperm deoxyribonucleic acid (DNA) to the culture medium of tobacco stem explants and observed that division of callus cells was accelerated. Addition of fresh herring sperm DNA did not stimulate cell division. philip bachelor 1534