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 ... WebAnswer: (d) cytokinin Question 4. Which endocrine gland is called master gland: (a) pituitary (b) adrenal (c) thyroid (d) pancreas Answer: (a) pituitary Question 5. Cartisons are secreted by: (a) pancreatic gland (b) adrenal gland (c) thyroid gland (d) pituitary gland …
The diverse roles of cytokinins in regulating leaf development
WebOct 30, 2024 · Cytokinin; 1. Auxin: An auxin is an organic compound responsible for promoting the growth of plants along the longitudinal axis when applied in low concentrations to shoots of the plants. Auxin is specifically concerned with cell enlargement or the growth of the shoots. Auxin is identical to Indole 3-Acetic Acid (C 10 H 9 O 2 N, … WebJan 29, 2024 · Cytokinins Cytokinins are a group of plant growth regulators which are primarily involved in performing cell division in plant roots, … small pink flower names
Metabolic regulation of quiescence in plants - Considine - The …
WebSolution. Abscisic acid (ABA) is a plant hormone that is synthesized in the leaves and then translocated to different parts of the plant. ABA is a powerful growth inhibitor. In experiments, it was observed that It causes 50 percent inhibition of growth in oat coleoptile at a specific concentration. It causes leaf senescence, induces dormancy, etc. WebDec 31, 2024 · How the body plan is established and maintained in multicellular organisms is a central question in developmental biology. Thanks to its simple and symmetric structure, the root represents a powerful tool to study the molecular mechanisms underlying the establishment and maintenance of developmental axes. Plant roots show two main axes … WebOct 9, 2007 · The first plant hormone belonging to the class now called cytokinins was discovered more than 50 years ago, based on its ability to strongly stimulate growth and cell division in cultured tobacco cells (9, 10).Since then, many additional roles have been attributed to cytokinins. highlighting hair while pregnant