Auxin auxin everywhere

Auxin auxin everywhere

But the discrete clocks can work as one because they are synchronized by electrical impulses. Our internal clock, which controls circadian behaviors and physiology, is a circuitry of many thousands of neurons in the brain called the suprachiasmatic nucleus (SCN). The Kobe group looked at communication within this circuitry in cultured brain slices of transgenic mice using a fluorescent reporter...

Auxin

Most commonly found as… … Indole-3-acetic acid or IAA. What is it? IAA is a weak acid similar to tryptophan. Its existence was first suggested by the Darwin brothers as a compound responsible for 'the power of movement in plants', but it was not named and chemically defined until much later. What does it do? Everything! What, everything? Yes, auxin apparently regulates almost everything in plan...

Auxin Signaling.

Role of the Arabidopsis PIN6 Auxin Transporter in Auxin Homeostasis and Auxin-Mediated Development

Plant-specific PIN-formed (PIN) efflux transporters for the plant hormone auxin are required for tissue-specific directional auxin transport and cellular auxin homeostasis. The Arabidopsis PIN protein family has been shown to play important roles in developmental processes such as embryogenesis, organogenesis, vascular tissue differentiation, root meristem patterning and tropic growth. Here we ...

Arabidopsis IAR4 modulates auxin response by regulating auxin homeostasis.

In a screen for enhancers of tir1-1 auxin resistance, we identified two novel alleles of the putative mitochondrial pyruvate dehydrogenase E1alpha-subunit, IAA-Alanine Resistant4 (IAR4). In addition to enhancing the auxin response defects of tir1-1, iar4 single mutants exhibit numerous auxin-related phenotypes including auxin-resistant root growth and reduced lateral root development, as well a...