auxin


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  • noun

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a plant hormone that promotes root formation and bud growth

References in periodicals archive ?
To assess the effect of auxin in combination with cytokinin on callus induction, eight different medium formulations were used.
Although researchers have hypothesised the involvement of plant growth regulators such as auxins in evoking physiological responses following inoculation with selected rhizobacteria, no comprehensive study has been undertaken to monitor the auxin biosynthesis in rhizosphere v.
Auxin performs its functions by stimulating gene expression--that is, it turns genes on and off.
ARS scientists inserted an antisense copy of a specific gene from corn into a tomato to turn this gene off and lower auxin levels.
Auxin causes a tomato to grow and ripen, according to ARS plant physiologist Jerry D.
Flavonoids act as negative regulators of auxin transport in vivo in Arabidopsis.
For many years, auxin, gibberellins, cytokinins, abscisic acid and ethylene are well accepted as the major plant hormones.
Now an international team of scientists has provided definitive insights into the driving force behind this movement -- the plant hormone auxin.
Phytohormone inactivation can occur through the combination of sugars derived from hydrolysis of sucrose, glucose and fructose, thereby altering the balance of active molecules of auxin and cytokinin (CORUZZI; ZHOU, 2001), directly affecting adventitious root formation in vegetative propagules (BHARDWAJ; MISHRA, 2005).
7 Nantong Auxin Technology of Electronics Materials Co.
In summary, the bacteria-associated plant growth properties shown in our experiments suggested that PGPR bacteria were able to produce phytohormone auxin (IAA) that stimulated the growth of maize and wheat crops.
They showed that when a thale cress plant is placed in shade, a cascade of molecular changes occurs in the cells of the leaves: the PHYB photoreceptor causes chemical changes in PIF7, which then activates genes that direct the cell to produce auxin.
This special edition SE Copa with Ecomotive badging comes with added features, at no extra cost, and included are highlights such as climate control and a refrigerated glovebox, special Copa model upholstery, automatic headlights and rain sensing wipers, plus six-speaker sound system with CD player and AUXIN connection for iPod/MP3.
Auxin signaling; from synthesis to systems biology.
Use of single auxin for induction of calli was also confirmed in our experiment when the medium was enriched with NAA alone in MS.