Cell wall extensibility and effect of cell-wall-loosening proteins during rose flower opening

Yamada, K,, Takahashi, R,, Fujitani, C,, Mishima, K,, Yoshida, M,, Joyce, D,C, and Yamaki, S. (2009) Cell wall extensibility and effect of cell-wall-loosening proteins during rose flower opening. Journal of the Japanese Society for Horticultural Science, 78 2: 242-251. doi:10.2503/jjshs1.78.242


Author Yamada, K,
Takahashi, R,
Fujitani, C,
Mishima, K,
Yoshida, M,
Joyce, D,C,
Yamaki, S.
Title Cell wall extensibility and effect of cell-wall-loosening proteins during rose flower opening
Journal name Journal of the Japanese Society for Horticultural Science   Check publisher's open access policy
ISSN 1882-3351
Publication date 2009-04-01
Year available 2009
Sub-type Article (original research)
DOI 10.2503/jjshs1.78.242
Open Access Status Not yet assessed
Volume 78
Issue 2
Start page 242
End page 251
Total pages 10
Editor Ken Ichi Arisumi
Place of publication Japan
Publisher Engei Gakkai
Language eng
Subject C1
820209 Ornamentals, Natives, Flowers and Nursery Plants
060705 Plant Physiology
Abstract As flower opening involves the expansion of petal cells, the mechanisms of expansion growth were investigated in Rosa hybrida L. 'FEbesa' (syn. 'Pretty Woman') petals. Petal cell-wall extensibility was analyzed by creep extension analysis. Walls of the petal cells became loose at developing stage IV of completely separated sepals on an opening flower. Furthermore, cell-wall proteins extracted from rose petals at stage IV were suggested to have a positive effect on cell-wall loosening of stage III petals. Expansin and xyloglucan endotransglycosylase/hydrolase (XTH) proteins, which are located on apoplasts, are probably involved in cell-wall loosening in plants. Transcripts of these cell-wall proteins were extracted from rose petals with a view to elucidating their potential role in rose flower opening. Expansin and XTH transcript levels changed markedly during petal development. In particular, transcript levels of RhEXPA1 and RhXTH1 increased markedly during petal growth and were relevant to the typical growth in different part of the petals. Based on the present findings, we suggest that RhEXPA1 and RhXTH1 are the major paralogs involved in expansion growth of rose petals.
Keyword expansin
STRESS-RELAXATION PROPERTIES
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Agriculture and Food Sciences
 
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Created: Thu, 03 Sep 2009, 18:15:50 EST by Mr Andrew Martlew on behalf of School of Land, Crop and Food Sciences