Auxin | Definition, Functions, & Uses | Britannica
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.
Auxin Hormone - Types, Function, Example, and Mechanism of …
2024年5月17日 · Auxin is a plant hormone. Auxin hormone function is to control growth and developmental processes in plants, including cell expansion, root initiation, and bud and flower growth. Auxin, discovered by Charles Darwin and his …
Auxin (Plant): Definition, Function and Structure - Biology Dictionary
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: Regulation, Action, and Interaction - PMC - PubMed …
As a critical plant hormone, auxin modulates such diverse processes as tropic responses to light and gravity, general root and shoot architecture, organ patterning, vascular development and growth in tissue culture (Davies, 1995). The importance of auxin for human sustenance is both vital and readily apparent: auxin is required for plant growth.
Auxin and its role in plant development: structure, signalling ...
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 …
What Is Auxin? How It Affects The Plant Growth? - BYJU'S
Auxins are a group of naturally occurring and artificially synthesised plant hormones. They play an important role in the regulation of plant growth. Auxins were initially isolated from human urine. Auxin means to “enlarge” or “increase”. They induce cell division, differentiation and elongation.
Auxin – Definition, Structure, and Function - Science Facts
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.
Roles of Auxin in the Growth, Development, and Stress Tolerance …
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.
Mechanisms of auxin signaling - PMC - PubMed Central (PMC)
The plant hormone auxin triggers complex growth and developmental processes. Its underlying molecular mechanism of action facilitates rapid switching between transcriptional repression and gene activation through the auxin-dependent degradation of transcriptional repressors.
Auxin Hormone – Discovery, Types, Functions, and Mechanism
2024年4月19日 · Auxin is an essential plant hormone that significantly influences plant growth and development, such as cell elongation, root formation, and growth toward light (phototropism). The way auxin works within a plant involves a detailed series of steps known as a signaling cascade.
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