35S Light Regulation

caspart at esvax.dnet.dupont.com caspart at esvax.dnet.dupont.com
Wed May 4 08:00:27 EST 1994


Dear Netters,
John Raasch asked about whether the 35S promoter was light regulated.  I
used a 35S-GUS construct as a control in a study of the light-regulated
ferredoxin promoter (Plant Journal  3:161-174).  We saw no evidence of
light activation of the 35S promoter in 5-day old etiolated seedlings given
24 h of light.  Also, white light grown seedlings had the same GUS activity
as etiolated seedlings for 3 days.  After that, the etiolated seedlings
actually had almost 2-fold higher GUS activity.
Tim Caspar



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