Abscisic acid S-ABA

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Plant Hormone Abscisic Acid S-ABA

Plant hormone

Abscisic acid聽S-ABA

10% SP/ 75% / 90% TC

 

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Plant Hormone Abscisic Acid S-ABA

Abscisic acid S-ABA is defined as a plant hormone that mainly acts to inhibit growth, promotes dormancy, and to help the plant tolerate stressful conditions.

Product聽Name

Abscisic acid S-ABA

CAS聽NO.

21293-29-8

EINECS聽NO.

244-319-5

Physical and

Chemical聽聽Properties

Molecular formula:聽C15H20O4

Molecular weight:聽364.32

Melting point:聽160-162聽deg C

Boiling point:聽458.7聽deg C

Appearance:聽Colorless crystals

Density:聽1.193 g/mL

Solubility:聽In water 3-5g/L(20鈩); Soluble in ethanol.

Stability:聽Stable under room temperature for 2 years; degradable under sunlight.

Chemical structural formula

Toxicology

LD50: mammal, ip; >1500 mg/kg

Products:

Plant hormone Abscisic acid聽S-ABA 10% SP, 75%, 90% TC

Physiological actions of Plant hormone Abscisic Acid S-ABA

  • Stimulates the closure of stomata (water stress brings about an increase in S-ABA synthesis).
  • Inhibits shoot growth but will not have as much affect on roots or may even promote growth of roots.
  • Induces seeds to synthesize storage proteins.
  • Inhibits the affect of gibberellin.
  • Has effect on induction and maintenance of dormancy.
  • Induces gene transcription especially for proteinase inhibitors in response to wounding which may explain an apparent role in pathogen defense.

 

 

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