Biologically active cis -cinnamic acid occurs naturally in Brassica parachinensis
Chinese Science Bulletin(2003)
Abstract
The biologically active cis-cinnamic acid ( cis -CA) has been perceived as a synthetic plant growth regulator for decades. However, in the present study, we found that cis -CA actually exists as a naturally occurring compound in a Brassica plant. This natural growthregulating substance presents in both the sunlight-irradiated leaf tissue and the non-irradiated root tissue. The concentrations of cis -CA in both tissues are comparable to the biologically effective levels of those major plant hormones. The presence of cis -CA in root tissue suggests that it may be produced through both light-dependent and -independent pathways or it can be transported from a plant organ to another.
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Key words
cis-cinnamic acid,Brassica,HPLC,mass spectrometry,plant growth regulator,natural product,phenylpropanoid
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