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GlossaryAuxin Signaling

plants use a hormone to regulate growth and development

Auxin signaling, also known as auxin signal transduction, is a process by which plants use the hormone auxin to regulate growth and development. Auxin binds to specific receptors in plant cells, triggering a cascade of molecular events that influence cell division, elongation, and differentiation. This signaling pathway is crucial for various plant functions, including root growth, stem elongation, and response to light and gravity.

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research Auxin Modulates Root-Hair Growth Through Its Signaling Pathway in Citrus

28 citations , March 2018 in “Scientia Horticulturae”

The study investigated the effects of auxins on root-hair growth in trifoliate orange, a citrus rootstock, using 3-indolebutyric acid (IBA) and 2-naphthoxyacetic acid (2-NOA, an auxin inhibitor). It was found that IBA positively regulated root-hair growth by increasing the endogenous auxin level in the root-hair zone, while 2-NOA had the opposite effect, reducing root-hair growth. IBA treatment increased the endogenous IAA content by 22.8%, whereas 2-NOA reduced it by 21.4% compared to the control. The study concluded that auxin biosynthesis and transport, modulated by IBA and 2-NOA, played a crucial role in root-hair growth by altering the local auxin signaling pathway.

research Integration of Ethylene and Auxin Signaling and the Developmental Consequences of Their Crosstalk

4 citations , October 2014 in “Springer eBooks”

Ethylene and auxin hormones interact in complex ways that are essential for plant growth and development.

research D’orenone Blocks Polarized Tip Growth Of Root Hairs By Interfering With The PIN2-Mediated Auxin Transport Network In The Root Apex

44 citations , May 2008 in “Plant journal”

D'orenone stops root hair growth by disrupting auxin transport, but adding auxin can reverse this.

research The TOR–Auxin Connection Upstream of Root Hair Growth

20 citations , January 2021 in “Plants”

High energy boosts root hair growth in plants, while low energy stops it.

research Functional Characterization of Soybean Strigolactone Biosynthesis and Signaling Genes in Arabidopsis MAX Mutants and GmMAX3 in Soybean Nodulation

43 citations , December 2017 in “BMC Plant Biology”

GmMAX3b gene in soybeans boosts nodulation and affects hormone levels.

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