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Related to cytokinin: abscisic acid, Gibberellins


Any of a class of plant hormones that promote cell division and growth and delay the senescence of leaves.


(Botany) any of a group of plant hormones that promote cell division and retard ageing in plants. Also called: kinin


(ˌsaɪ təˈkaɪ nɪn)

any of a class of plant hormones, produced by the roots and traveling upward through the xylem, that promote tissue growth and budding and, on application, retard plant senescence.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cytokinin - any of a class of plant hormones that promote cell division and delay the senescence of leaves
growth regulator, phytohormone, plant hormone - (botany) a plant product that acts like a hormone
References in periodicals archive ?
Some genes were clear involved in stem development, such as cell development (T1-51819), organ morphogenesis (T1-56670), organ growth (T1-59903; T3-17722; T1-56578; T3-10488), auxin mediated signaling pathway, meristem development and response to cytokinin stimulus (T1-67257; T4-32688), cellulase activity (T3-14939), lignin biosynthetic process (T1-66751; T4-38347), these were typical biological processes of stem development.
The authors applied the same cytokinin and auxin hormones and their concentrations were also similar to ours.
The use of two auxins combined (2,4-D and IAA) was not efficient for callus formation in internodal explants however, in leaf explants, the calli formation percentage reached 50%, corroborating Kakani, and Peng (2011), who found that for callus formation a combination of cytokinin and auxin is needed.
Thus, MLE being rich in zeatin, a cytokinin maintained the green photosynthetic area and enhanced grain filling that might contributed towards improved grain yield when applied as SP or in combination with foliar.
In contrast to the results obtained from epicotyl explants, the presence of cytokinin in the medium significantly affected the number of shoots formed from hypocotyl segments treated with BA at culture initiation and first subculture (F Test, P [less than or equal to] 0.
Many studies have reported the stimulating effect of cytokinin on in vitro floral morphogenesis, but they were species-dependent [8, 18, 14, 19, 20].
In the current study, endophytic bacteria were isolated from the four varieties of the aerobically grown rice and these isolates were studied for their ability in producing phytohormone like IAA, GA and cytokinin.
Cytokinin actually, reprograms the shoot tips for multiple shoot induction.
Cytokinin application under abiotic stressful conditions can delay the leaf senescence directly by scavenging free radicals [10].
3-6) In 1980, we established a xylogenic culture in which single mesophyll cells isolated from Zinnia elegans leaves differentiate into tracheary elements synchronously and at high frequency in the presence of two plant hormones, auxin and cytokinin (Fig.
Moringa leaf juice is a natural plant growth promoter because it contains cytokinin which stimulates the plant growth.