Ca2+/calmodulin is critical for brassinosteroid biosynthesis and plant growth

Liqun Du and B. W. Poovaiah ()
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Liqun Du: Washington State University
B. W. Poovaiah: Washington State University

Nature, 2005, vol. 437, issue 7059, 741-745

Abstract: The pick of the crop Brassinosteroids are plant steroid hormones that couple environmental factors, such as light, with plant growth and development. New work in Arabidopsis shows that to function normally, the DWARF1 protein (DWF1) required for brassinosteroid biosynthesis must bind to the Ca2+ binding protein calmodulin. The DWF1 equivalent proteins from other plants have a similar Ca2+/calmodulin-binding domain. The finding raises the possibility of genetically engineering crop plants of varying sizes to cope with in particular environmental conditions.

Date: 2005
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DOI: 10.1038/nature03973

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