Plant Cell Drug Metab Dispos
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

First published online March 12, 2004; 10.1105/tpc.018838

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
16/4/920    most recent
tpc.018838v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (14)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Nakagawa, H.
Right arrow Articles by Takatsuji, H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Nakagawa, H.
Right arrow Articles by Takatsuji, H.
Agricola
Right arrow Articles by Nakagawa, H.
Right arrow Articles by Takatsuji, H.
The Plant Cell 16:920-932 (2004)
© 2004 American Society of Plant Biologists

The Petunia Ortholog of Arabidopsis SUPERMAN Plays a Distinct Role in Floral Organ Morphogenesis

Hitoshi Nakagawaa, Silvia Ferrariob, Gerco C. Angenentb, Akira Kobayashia,1 and Hiroshi Takatsujia,2

a Developmental Biology Laboratory, Plant Physiology Department, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
b Business Unit Plant BioScience, Plant Research International, 6700 AA Wageningen, The Netherlands

2 To whom correspondence should be addressed. E-mail takatsuh{at}nias.affrc.go.jp; fax 81-29-838-8383.

Arabidopsis (Arabidopsis thaliana) SUPERMAN (SUP) plays a role in establishing a boundary between whorls 3 and 4 of flowers and in ovule development. We characterized a Petunia hybrida (petunia) homolog of SUP, designated PhSUP1, to compare with SUP. Genomic DNA of the PhSUP1 partially restored the stamen number and ovule development phenotypes of the Arabidopsis sup mutant. Two P. hybrida lines of transposon (dTph1) insertion mutants of PhSUP1 exhibited increased stamen number at the cost of normal carpel development, and ovule development was defective owing to aberrant growth of the integument. Unlike Arabidopsis sup mutants, phsup1 mutants also showed extra tissues connecting stamens, a petal tube and an ovary, and aberrancies in the development of anther and placenta. PhSUP1 transcripts occurred in the basal region of wild-type flowers around developing organ primordia in whorls 2 and 3 as well as in the funiculus of the ovule, concave regions of the placenta, and interthecal regions of developing anthers. Overexpression of PhSUP1 in P. hybrida resulted in size reduction of petals, leaves, and inflorescence stems. The shortening of inflorescence stems and petal tubes was primarily attributable to suppression of cell elongation, whereas a decrease in cell number was mainly responsible for the size reduction of petal limbs.




This article has been cited by other articles:


Home page
 ANN BOT (LOND)Home page
A. Kocyan
The Discovery of Polyandry in Curculigo (Hypoxidaceae): Implications for Androecium Evolution of Asparagoid Monocotyledons
Ann. Bot., August 1, 2007; 100(2): 241 - 248.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications THE PLANT CELL PLANT PHYSIOLOGY
Copyright © 2004 by the American Society of Plant Biologists