Auxins (plural of auxin / ˈɔːksɪn /) are a class of plant hormones (or plant-growth regulators) with some morphogen -like characteristics. Auxins play a cardinal role in coordination of many growth and behavioral processes in plant life cycles and are essential for plant body development.

2018年5月13日 · An auxin is a plant hormone derived from the amino acid tryptophan. An auxin may be one of many molecules, but all auxin molecules are involved in some sort of cellular regulation. Auxin molecules are one of five major types of plant hormone.

Auxin, any of a group of plant hormones that regulate growth, particularly by stimulating cell elongation in stems. Auxins also play a role in cell division and differentiation, in fruit development, in the formation of roots from cuttings, in the inhibition of lateral branching, and in leaf abscission.

2021年8月21日 · Auxins are plant hormones that play a central role in controlling plant growth and development across different environmental conditions. Even at low concentrations, auxins can regulate gene expression through specific transcription factors and proteins that are modulated to environmental responses in the signalling cascade.

2023年2月17日 · An auxin is a group of growth hormones found in all plant tissues in varying concentrations. The name of this class of hormone comes from the Greek word ‘auxein‘, which means ‘to grow’ or ‘increase’. It was the first significant plant hormone to be discovered.

Auxin biology is among the oldest fields of experimental plant research. Charles Darwin performed early auxin experiments, observing the effects of a hypothetical substance modulating plant shoot elongation to allow tropic growth toward light (Darwin, 1880).

Auxin, a plant hormone, regulates virtually every aspect of plant growth and development. Many current studies on auxin focus on the model plant Arabidopsis thaliana, or on field crops, such as rice and wheat. There are relatively few studies on ...

2024年5月17日 · Auxin is a plant hormone that regulates growth including cell elongation and apical dominance. Read about auxin function, examples, types, and mechanism of action in this article.

2024年1月18日 · Interpret and predict outcomes of experiments that demonstrate the action of auxin. The term auxin is derived from the Greek word auxein, which means "to grow." While many synthetic auxins are used as herbicides, indole-3-acetic acid (IAA) is the only naturally occurring auxin that shows physiological activity (Figure 11.1.1 11.1. 1).

Understanding how auxin regulates various physiological and developmental processes has been a hot topic and an intriguing field. Recent studies have unveiled more molecular details into how diverse auxin responses function in every aspect of plant growth and development.