Indole Acetic Acid Powder CAS 87-51-4

Indole-3-acetic acid is abbreviated as IAA , also known as Indole Acetic Acid. It is a heterocyclic compound. It belongs to a class of important plant hormones - auxin. It is a derivative of indole and a substance obtained by adding carboxymethyl to the indole ring. Like all auxin, indoleacetic acid has a variety of biological effects, including promoting cell elongation and cell differentiation, so as to promote plant growth and development. In order to meet the needs of horticulture, people synthesized cheaper and more stable auxin analogs, such as indole-3-butyric acid (IBA) and 1-Naphthaleneacetic acid (NAA).

What is the Mechanism of Action of Indole Acetic Acid?

Indole Acetic Acid Powder is a common plant growth regulator, which can promote flowering, induce the development of unisexual fruit and delay fruit maturation. Relevant studies have shown that indoleacetic acid plays a role from seedling to fruit maturity at the organ and whole plant levels. IAA controlled the reversible red light inhibition of hypocotyl elongation in seedlings; When Indole Acetic Acid is transferred to the lower side of the branch, the geotropism of the branch is produced; When indoleacetic acid is transferred to the backlight side of the branch, the phototropism of the branch is produced; Indole-3-acetic acid causes apical dominance; Delaying leaf senescence; Indoleacetic acid applied to leaves inhibited abscission, while auxin applied to the proximal end of the abscission layer promoted abscission; Indoleacetic acid promotes flowering, induces the development of unisexual fruit and delays fruit ripening.

What is the method of application of Indole Acetic Acid?

Methods of using Indole Acetic Acid Powder: 1. Soaking: (1) soaking the flowers with 3000 mg / L liquid medicine in the full flowering period of tomato to induce Parthenocarpy and fruit setting of tomato, form seedless tomato fruit and improve the fruit setting rate; (2) Root soaking can promote the rooting of apple, peach, pear, citrus, grape, kiwi, strawberry, poinsettia, carnation, chrysanthemum, rose, Magnolia, Rhododendron, tea, metasequoia, poplar, and other crops, induce the formation of adventitious roots, and accelerate the speed of vegetative reproduction. Generally, 100-1000mg / L is used to soak the base of cuttings. The species that are easy to take root use a lower concentration, For the species that are not easy to root, use the ones with slightly higher concentration. The soaking time is about 8-24 hours, with high concentration and short soaking time. 2. Spraying chrysanthemum (under a 9-hour time cycle) once with 25-400mg / L solution can inhibit the emergence of flower buds and delay flowering.

What are the development prospect and future research directions of IAA?

Indole Acetic Acid Powder is not only a secondary metabolite produced by bacteria, but also a cross-border signal involved in regulating its own gene expression, physiological activities, and behavior, as well as beneficial or harmful interactions with host plants. For example, IAA can affect bacterial stress tolerance and enhance the adaptability of bacteria to a complex environment; It can also be used as a signal molecule to regulate bacterial signal transduction, flagella formation, adhesion, and so on. With the development of integration and systems biology, combined with the use of a new generation of high-throughput sequencing technology, great progress has been made in the understanding of the biosynthesis pathway of IAA in plants, the signal pathway, and the action mechanism of IAA affecting plant physiological activities. In contrast, the research on the cross-border signal mechanism of IAA-mediated regulation of plant microbial interaction has just begun. At present, the research mainly focuses on the regulation of bacterial gene expression and physiological activities by IAA, as well as the regulation of IAA biosynthesis. IAA, bacteria, and plants constitute an interactive and coordinated organic whole, forming a dynamic and complex regulatory network. In the future, more attention should be focused on systematically exploring how IAA, as a cross-border signal, integrates into the regulatory network of plant bacterial interaction and fine regulates the interaction between plant and microorganism. The rapid development of functional genomics and metabolomics methods such as transcriptomics and proteomics, and the integration of bioinformatics and high-throughput sequencing technology will help people depict this network more clearly and three-dimensional through continuous research and exploration. Clarifying the synthesis and regulation mechanism of plant-related bacteria IAA and the molecular basis of IAA involved in regulating the interaction between plants and bacteria will help to improve plant stress resistance and yield and increase strength for environmental protection. For example, through genetic manipulation, plant biocontrol bacteria can optimize their ability to prevent diseases and promote growth; The pathogenicity of plant pathogens can be reduced.

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