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Proc Natl Acad Sci U S A. Aug 20, 1996; 93(17): 9282–9286.
PMCID: PMC38633

Auxin as a positional signal in pattern formation in plants.

Abstract

By using a novel, extremely sensitive and specific gas chromatography-mass spectrometry technique we demonstrate in Pinus sylvestris (L.) trees the existence of a steep radial concentration gradient of the endogenous auxin, indole-3-acetic acid, over the lateral meristem responsible for the bulk of plant secondary growth, the vascular cambium. This is the first evidence that plant morphogens, such as indole-3-acetic acid, occur in concentration gradients over developing tissues. This finding gives evidence for a regulatory system in plants based on positional signaling, similar to animal systems.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.
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