Library Open Repository

Feed-forward regulation of gibberellin deactivation in pea

Downloads

Downloads per month over past year

Elliott, RC and Ross, JJ and Smith, JJ and Lester, DR and Reid, JB (2001) Feed-forward regulation of gibberellin deactivation in pea. Journal of plant growth regulation, 20 (1). pp. 87-94. ISSN 0721-7595

[img] PDF
Elliott_et_al_2001.pdf | Request a copy
Full text restricted
Available under University of Tasmania Standard License.

Abstract

Multiple lines of evidence suggest that the genes involved in gibberellin (GA) biosynthesis are regulated by bioactive GA levels. With the recent cloning of GA 2-oxidase genes from pea, we investigated whether this homeostatic regulation extends to the genes controlling GA deactivation in this species, utilizing two well-characterized GA-deficient mutants, ls and na and a GA-accumulating mutant, sln. The pea GA 2-oxidases showed feed-forward effects at the mRNA level, while the endogenous levels of GA20, GA29, GA1, and GA8 showed no evidence of feed-forward regulation. Analyses of genomic Southern blots and expressed sequenced tag (EST) databases suggest that other GA 2-oxidases could possibly account for this lack of feed-forward on GA levels.

Item Type: Article
Journal or Publication Title: Journal of plant growth regulation
Page Range: pp. 87-94
ISSN: 0721-7595
Identification Number - DOI: 10.1007/s003440010004
Additional Information: Copyright 2001 Springer-Verlag
Date Deposited: 31 Jul 2012 07:48
Last Modified: 18 Nov 2014 04:39
URI: http://eprints.utas.edu.au/id/eprint/14589
Item Statistics: View statistics for this item

Repository Staff Only (login required)

Item Control Page Item Control Page