Zeatin

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Zeatin
Zeatin.png
Identifiers
CAS number 1637-39-4 YesY
PubChem 449093
ChemSpider 395716 N
ChEBI CHEBI:16522 N
Jmol-3D images Image 1
Properties
Molecular formula C10H13N5O
Molar mass 219.24 g mol−1
Appearance Off-white to yellow crystalline powder
Melting point 208−210 °C
Solubility in 1M NaOH Soluble
Hazards
LD50 2200 mg/kg (mouse, transperitoneal)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 N (verify) (what is: YesY/N?)
Infobox references

Zeatin is a plant hormone derived from the purinebase called adenine. Zeatin belongs to the family of plant-growth hormones called cytokinins and was discovered in immature corn kernels from the genus Zea. It promotes growth of lateral buds and when sprayed on meristems stimulates cell division to produce bushier plants.[citation needed]

Zeatin and its derivatives are the active ingredient in coconut milk, which causes plant growth.[1]

Zeatin has several anti-aging effects on human skin fibroblasts.[2]


Toxicology[edit]

The acute transperitoneal toxicity in mice (LD50) is 2200 mg/kg.

Application[edit]

Zeatin has a variety of effects including:

  1. Promotes callus initiation when combined with auxin, concentration 1 ppm.
  2. Promotes fruit set. Zeatin 100 ppm + GA3 500 ppm + NAA 20 ppm, sprayed at 10th, 25th, 40th day after blossom.
  3. Retards yellowing for vegetables, 20 ppm, sprayed.
  4. Causes auxiliary stems to grow and flower.

Zeatin can also be applied to stimulate seed germination and seedling growth.

References[edit]

  1. ^ David W. S. Mok, Machteld C. Mok (1994). Cytokinins: Chemistry, Activity, and Function. CRC Press. p. 8. ISBN 0-8493-6252-0.  (available from Google books)
  2. ^ Rattan, S.I.S. and Sodagam, L. (2005). "Gerontomodulatory and youth-preserving effects of zeatin on fibroblasts of human skin.". Rejuvenation Research 8 (1): 46–57. doi:10.1089/rej.2005.8.46. PMID 15798374. 

External links[edit]