What are the two functions of cytokinin?
Main functions of Cytokinin:
- It bring about cytokinesis. It also induce rapid cell division.
- It helps to produce new leaves, chloroplasts in leaves and helps to overcome apical dominance and delay senescence.
- It break dormancy period of seeds.
What are the main functions of cytokinins?
Cytokinins are a group of plant growth regulators which are primarily involved in performing cell division in plant roots, shoot system. This hormone helps in promoting the cell's growth, development, differentiation, affecting apical dominance and delay in leaf senescence.
What is the function of cytokinins in regulation of the cell cycle?
Cytokinin positively regulates cell division and also serves a key role in establishing organization within shoot stem cell centers. Both auxin-dependent and auxin-independent mechanisms have been uncovered by which cytokinin stimulates the endocycle in roots.
What is the function of auxin and cytokinin?
The hormones auxin and cytokinin are key regulators of plant growth and development. As they are active at minute concentrations and regulate dynamic processes, cell and tissue levels of the hormones are finely controlled developmentally, diurnally, and in response to environmental variables.
What are the functions of Auxins?
Auxin is a key regulator of plant growth and development, orchestrating cell division, elongation and differentiation, embryonic development, root and stem tropisms, apical dominance, and transition to flowering.Jul 23, 2014
What is the function of cytokinin Mcq?
It is a plant hormone influencing the stimulation and growth of cell division. These are synthesized in the roots and typically are derived from adenine. They are critical in the processes of cell differentiation and normal growth, which takes place in the fruits and leaves.
Which is not a function of cytokinin?
It helps in the opening of the stomata along with the auxin. All the Options are correct except the answer, promoting the bud dormancy since it breaks the bud dormancy. The ratio of the auxin to the cytokinin is very important for the growth and the differentiation.
What are the two types of cytokinins?
There are two types of cytokinins: adenine-type cytokinins represented by kinetin, zeatin, and 6-benzylaminopurine, and phenylurea-type cytokinins like diphenylurea and thidiazuron (TDZ).May 25, 2022
What is the other name of cytokinins?
This active compound was named as Kinetin because of its ability to promote cell division and was the first cytokinin to be named. Kinetin was later identified to be 6-furfuryl-amino purine. Later on, the generic name kinin was suggested to include kinetin and other substances having similar properties.
What is the cytokinin hormone?
Cytokinins are essential plant hormones. By stimulating cell division, they regulate shoot meristem size, leaf primordia number, and leaf and shoot growth. They can stimulate both the differentiation and the outgrowth of axillary buds. The cytokinins can mediate axillary bud release from apical dominance.
What are the 2 functions of gibberellins?
What is the main function of gibberellins? Gibberellins are plant growth regulators that facilitate cell elongation, help the plants to grow taller. They also play major roles in germination, elongation of the stem, fruit ripening and flowering.Sep 12, 2020