Zeatin
Encyclopedia
Zeatin is a plant hormone
derived from the purine
adenine
. It is a member of the plant growth hormone family known as cytokinin
s. Zeatin was first discovered in immature corn kernels from the genus Zea
. Zeatin and derivatives were discovered to be the primary active ingredient in coconut milk
, which has long been known to actively induce plant growth.
As in the case of kinetin
, zeatin has been reported to have several in vitro
anti-aging effects on human skin fibroblasts.
Promotes growth of lateral buds and Stimulates cell division(Lateral Dominance) for Bushier Plants if Sprayed on Meristem.
Coconut milk is a Source.
Melting point: 208-210°C
Soluble: in 1M NaOH
Also applied to stimulate seed germination and seedling growth.
Plant hormone
Plant hormones are chemicals that regulate plant growth, which, in the UK, are termed 'plant growth substances'. Plant hormones are signal molecules produced within the plant, and occur in extremely low concentrations. Hormones regulate cellular processes in targeted cells locally and, when moved...
derived from the purine
Purine
A purine is a heterocyclic aromatic organic compound, consisting of a pyrimidine ring fused to an imidazole ring. Purines, including substituted purines and their tautomers, are the most widely distributed kind of nitrogen-containing heterocycle in nature....
adenine
Adenine
Adenine is a nucleobase with a variety of roles in biochemistry including cellular respiration, in the form of both the energy-rich adenosine triphosphate and the cofactors nicotinamide adenine dinucleotide and flavin adenine dinucleotide , and protein synthesis, as a chemical component of DNA...
. It is a member of the plant growth hormone family known as cytokinin
Cytokinin
Cytokinins are a class of plant growth substances 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...
s. Zeatin was first discovered in immature corn kernels from the genus Zea
Zea
Zea may refer to:*Zea , a genus of large grasses**Zea mays, commonly known as maize or corn**Zea, a Canadian short film about popcorn*Helicoverpa zea, a major agricultural pest*Zea , a 1993 alternative EP from dEUS....
. Zeatin and derivatives were discovered to be the primary active ingredient in coconut milk
Coconut milk
Coconut milk is the water that comes from the grated meat of a coconut. The colour and rich taste of the milk can be attributed to the high oil content. In many parts of the world, the term coconut milk is also used to refer to coconut water, the naturally occurring liquid found inside the hollow...
, which has long been known to actively induce plant growth.
As in the case of kinetin
Kinetin
Kinetin is a kind of cytokinin, a class of plant hormone that promotes cell division. Kinetin was originally isolated by Miller and Skoog et al. as a compound from autoclaved herring sperm DNA that had cell division-promoting activity. It was given the name kinetin because of its ability to induce...
, zeatin has been reported to have several in vitro
In vitro
In vitro refers to studies in experimental biology that are conducted using components of an organism that have been isolated from their usual biological context in order to permit a more detailed or more convenient analysis than can be done with whole organisms. Colloquially, these experiments...
anti-aging effects on human skin fibroblasts.
Promotes growth of lateral buds and Stimulates cell division(Lateral Dominance) for Bushier Plants if Sprayed on Meristem.
Coconut milk is a Source.
Properties
Appearance: off-white to yellow crystalline powderMelting point: 208-210°C
Soluble: in 1M NaOH
Application
- Promotes callus initiation when combined with auxin, concentration 1 ppm.
- Promotes fruit set. Zeatin 100 ppm + GA3 500 ppm + NAA 20 ppm, sprayed at 10th, 25th, 40th day after blossom.
- Retards yellowing for vegetables, 20 ppm, sprayed.
- Causes Auxillary Stems to Grow, and Flower.
Also applied to stimulate seed germination and seedling growth.