Brassinolide - The sixth growth-promoting hormone

Brassinolide - The sixth growth-promoting hormone

The exploration of the tremendous potential of Brassinolide has opened up a new avenue in research and application in the field of agriculture.

Brassinolide, a bioavailable hormone, is recognized as a crucial factor in plant growth. Beginning in the 1930s, the USDA (United States Department of Agriculture) discovered this active ingredient extracted from pollen that influenced the growth processes of plants. Since synthesized by Mitchell in the 1970s, Brassinolide has attracted attention of researchers and farmers due to its ability to strongly stimulate plant growth.

Brassinolide, with the chemical formula C28H48O6, is a grayish-white powder. It is very slightly soluble  in water (5mg/l), with a melting point of 274-275°C, and a boiling point of 624°C.

Its mechanism of action involves absorption and translocation within plants. Brassinolide functions through the BRs signal transduction system, enhancing nutrient transport and kinase activity, thereby stimulating protein accumulation and cell expansion, while also promoting cell division, thus enhancing plant resilience and adaptation to the external environment.

Currently, Brassinolide is classified into five main types based on raw material sources and extraction technologies including:

  • + 14-hydroxylated Brassinolide: 100% extracted from canola flower pistils using enzymatic hydrolysis method.
  • + 28-homobrassinolide: Chemically synthesized with only 87% extraction from plants.
  • + 28-epibrassinolide: Chemically synthesized with only 30% extraction from plants.
  • + 24-epibrassinolide: Chemically synthesized with only 20% extraction from plants.
  • + 22, 23, 24-epibrassinolide: Chemically synthesized with only 10% extraction from plants.

Crop applications of Brassinolide:

Belonging to the growth stimulant group, Brassinolide brings positive effects such as promoting root initiation, shoot elongation, flowering and fruit setting, helping plants to recover from diseases and after harvest, reducing seedling mortality, enhancing drought, salt tolerance, and organic toxicity resistance, thereby increasing crop productivity.

Brassinolide affects plants in general, thus it is suitable for all types of crops including agricultural crops, fruit trees, vegetables, and rice. It can be applied at all stages of crop growth and easily combined with other agrochemicals.

King Elong, a leading company in supplying raw materials for the agricultural industry, is also aware of the potential of Brassinolide. If you are interested in using Brassinolide, please contact us for more details and thorough advice. We are always willing to assist and accompany you on your development journey!



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