Auxin as a positional signal in pattern formation in plants.
收藏PubMed Central1996-08-20 更新2026-05-02 收录
下载链接：
https://pmc.ncbi.nlm.nih.gov/articles/PMC38633/
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资源简介：
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. IMAGES:
提供机构：
National Academy of Sciences
创建时间：
1996-08-20
