What process is cytokinin responsible for?
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.
What are cytokinins responsible for?
Cytokinins (CKs) influence various traits of plant growth, development and physiology such as seed germination, apical dominance, flower and fruit development, leaf senescence and plant-pathogen-interactions etc.Dec 19, 2019
What is the role of cytokinin?
Cytokinins promote cell division and increase cell expansion during the proliferation and expansion stages of leaf cell development, respectively. During leaf senescence, cytokinins reduce sugar accumulation, increase chlorophyll synthesis, and prolong the leaf photosynthetic period.Jun 1, 2021
What plant growth process will cytokinins control?
Cytokinins promote cell division and increase cell expansion during the proliferation and expansion stages of leaf cell development, respectively. During leaf senescence, cytokinins reduce sugar accumulation, increase chlorophyll synthesis, and prolong the leaf photosynthetic period.Jun 1, 2021
Where in the plant does cytokinin control growth responses?
Cytokinins regulate many cellular processes and stimulate cell division. Cytokinin is synthesized largely in root tissue and then travels upward to the shoots; some production also occurs in developing leaves. Nutrients will move and accumulate in plant tissue where higher levels of cytokinin are expressed.May 20, 2005
Where is cytokinin located in a plant?
Where are cytokinins produced in plants? Cytokinins are more abundant in developing tissues and organs, such as root tip, shoot apex, cambium, and immature organs, and initially it was thought that cytokinins are synthesized in these limited tissues and organs.Nov 27, 2015
What plant structure is affected by cytokinin?
Cytokinins are N6 substituted adenine derivatives that affect many aspects of plant growth and development, including cell division, shoot initiation and growth, leaf senescence, apical dominance, sink/source relationships, nutrient uptake, phyllotaxis, and vascular, gametophyte, and embryonic development, as well as ...
What type of plant growth is stimulated by cytokinin?
Numerous reports ascribe a stimulatory or inhibitory function to cytokinins in different developmental processes such as root growth and branching, control of apical dominance in the shoot, chloroplast development, and leaf senescence (4).
Does cytokinin affect root growth?
It is known that cytokinin inhibits root elongation and branching (Skoog and Miller, 1957; Cary et al., 1995). More recently, it was shown that a reduction of the cytokinin status in planta causes the formation of a larger root system.
Is cytokinin responsible for flowering?
Cytokinin is known as the hormone responsible for cell division. It stimulates the metabolism and the formation of flowers on side shoots, and as such it is a counterpart to auxin. Cytokinin is most concentrated in the youngest parts of the plant, such as the seeds, fruits, young leaves and root tips.
Does cytokinin help in flowering?
Cytokinins are involved in many aspects of plant growth and development, and physiological evidence also indicates that they have a role in floral transition.