Differential expression of several xyloglucan endotransglucosylase/hydrolase genes regulates flower opening and petal abscission in roses
Author(s) -
Amar Pal Singh,
Suresh Kumar Dubey,
Deepika Lakhwani,
Saurabh Pandey,
Kasim Khan,
Upendra N. Dwivedi,
P. Nath,
Aniruddha P. Sane
Publication year - 2013
Publication title -
aob plants
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.998
H-Index - 39
ISSN - 2041-2851
DOI - 10.1093/aobpla/plt030
Subject(s) - petal , abscission , ethylene , biology , xyloglucan , sepal , anthesis , botany , cell wall , microbiology and biotechnology , stamen , biochemistry , pollen , cultivar , catalysis
The movement of petals during flower opening (anthesis) and their separation from the parent plant during abscission requires cell wall modification at the junction (abscission zone) of the petal and thalamus. The present study shows differential ethylene mediated temporal regulation of various members of the rose XTH gene family during flower opening and abscission in the ethylene sensitive, early abscising fragrant rose and the less sensitive late abscising hybrid rose. These studies indicate that large scale changes in xyloglucan crosslinking in cell wall mediated by XTHs may facilitate movement and separation during flower opening and abscission respectively.
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