1、植物激素专题八：油菜素内酯的合成途径、生理功能及检测方法

9年后，Grove等提取到一种油菜素甾醇的结晶，通过仪器分析确定其化学结构属于甾醇内酯，故命名为油菜素内酯 (Brassinolide，BL)。 至今已分离出70多种与BL类似的化合物，统称为油菜素甾醇类化合物 (Brassinosteroids，BRs)。

2、Brassinolide

Brassinolide 是一种植物生长调节剂，通过在敏感的 CCRF-CEM 细胞 中逐步添加 vincristine (VCR) 获得人 T 淋巴母细胞样细胞系 CCRF-VCR 1000 的多药耐药 (MDR)，并初步探讨其逆转作用机制。

3、Brassinolides signaling pathway: tandem response to plant

Overall, these findings emphasize the antagonistic regulation between BRs and ABA signaling pathways, ensuring a balanced response between plant growth and stress adaptation (Fig. 3).

4、芸苔素内酯调控植物生长发育及抗逆性的研究进展

In this review, we summarized the role and regulato-ry mechanism of brassinolide in plant growth and development and stress resistance, and made a prospect of future research direction of brassinolide, in order to provide reference for further re-search on brassinolide.

5、Advances in Brassinolide Regulation of Plant Growth and

Furthermore, we also compared different EBL application methods and concluded that seed priming and foliar application are more productive as compared with root application method.

Brassinolide

The variation between different compounds is provided by changes in the side-chain which also bears a vicinal cis -diol function along with alkyl groups of varying length and degree of unsaturation.

Crosstalk between Brassinosteroids and Other Phytohormones during Plant

In this review, we discuss the current known mechanisms of crosstalk between BRs and other phytohormones.

What’s Brassinolide Details?

Because different types of Brassinolide have different effects on plant growth. This article will introduce the specific situation of these 5 types of Brassinolide and focus on analyzing their differences.

郑氏化工小讲堂：你真的了解芸苔素内酯吗？

芸苔素（brassinolide简称BR）被学术界公认为第六大植物激素。 可以在大田作物、水果、蔬菜、花卉等使用。 具有强力生根、促进生长、提苗、壮苗、保苗、促进座果、果实膨大早熟、减轻病害缓解药害、协调营养平衡、抗…

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Differences in the structure of these hormones are due to the type and orientation of oxygenated functions in the A- and B-ring, as well as the number and position of functional groups in the side chain of the molecule.

Brassinolide and cilamycin are both widely used as plant growth regulators in agricultural cultivation. Although both promote plant growth, their properties and mechanisms of action differ significantly, requiring careful selection during application.

1. Composition:

   • Brassinolide is a plant hormone naturally occurring in the leaves and stems of plants like rapeseed and soybean.
   • Cilamycin is an antibiotic derived from Streptomyces bacteria, with antibacterial, antiviral, and antifungal properties.

2. Mechanism of Action:

   • Brassinolide regulates hormone balance within plants to stimulate growth and development.
   • Cilamycin inhibits bacterial growth to protect plants from pathogenic infections.

3. Applications:

   • Brassinolide is primarily used to enhance plant growth and increase crop yields.
   • Cilamycin focuses on preventing diseases such as downy mildew, late blight, and other fungal or bacterial infections.

4. Usage Methods:

   • Brassinolide is typically applied via foliar spraying directly onto crops.
   • Cilamycin requires dose adjustments based on pathogen type and severity, often applied through soil treatment or targeted spraying.

5. Precautions:

   • Excessive use of brassinolide may lead to overly rapid plant growth, negatively impacting yield.
   • Cilamycin should not be mixed with other pesticides, as this could reduce its efficacy.

6. Safety:

   • Brassinolide poses low risks to humans and animals but may compromise crop quality if overused.
   • Cilamycin is toxic; strict adherence to dosage guidelines is required to avoid ingestion or skin contact.

7. Environmental Impact:

   • Brassinolide persists longer in the environment, potentially causing pollution.
   • Cilamycin, produced via microbial fermentation, has a lower environmental footprint.

8. Economic Considerations:

   • Brassinolide is cost-effective and widely adopted due to its proven results.
   • Cilamycin’s higher production costs and pricing limit its widespread use in some regions.

differences between brassinolide and cilamycin span composition, mechanisms, applications, usage, safety, environmental impact, and economic feasibility. When selecting these regulators, farmers should consider local climate, soil conditions, pest/disease prevalence, and specific agricultural goals to make informed decisions.