The epidermis both drives and restricts plant shoot growth

Sigal Savaldi-Goldstein, Charles Peto and Joanne Chory ()
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Sigal Savaldi-Goldstein: Plant Biology Laboratory,
Charles Peto: Laboratory of Neuronal Structure and Function, The Salk Institute for Biological Studies, La Jolla, California 92037, USA
Joanne Chory: Plant Biology Laboratory,

Nature, 2007, vol. 446, issue 7132, 199-202

Abstract: How does your garden grow? Plant shoots are derived from three tissue types — the epidermal, sub-epidermal and inner cell tissue. One of them holds the key to determining the final size of the plant, but the question as to which one has remained controversial for more than a century. Now the targeted expression of brassinosteroid biosynthesis genes in dwarf Arabidopsis plants has provided the answer: it is the epidermis that both drives and restricts shoot growth. Brassinosteroids are plant hormones that are chemically related to cortisol and have a broad spectrum of effects on plant growth.

Date: 2007
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DOI: 10.1038/nature05618

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