Plant Physiol.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
QUICK SEARCH:   [advanced]


     

Plant Physiology Preview
Published on August 20, 2008; 10.1104/pp.108.120691

This Article
Right arrow Full Text (Plant Physiology Preview (PDF))
Right arrow Supplemental Data
Right arrow All Versions of this Article:
148/2/730    most recent
pp.108.120691v1
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 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 CrossRef
Right arrow Citing Articles via Web of Science (6)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Fait, A.
Right arrow Articles by Aharoni, A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Fait, A.
Right arrow Articles by Aharoni, A.
Agricola
Right arrow Articles by Fait, A.
Right arrow Articles by Aharoni, A.

Received April 10, 2008
Accepted August 10, 2008

Reconfiguration of the achene and receptacle metabolic networks during strawberry fruit development

Aaron Fait *, Kati Hanhineva , Romina Beleggia , Nir Dai , Ilana Rogachev , Victoria J. Nikiforova , Alisdair R. Fernie , and Asaph Aharoni

Abteilung Willmitzer, Max-Planck-Institut fur Molekulare Pflanzenphysiologie, Am Muhlenberg 1, 14476 Potsdam-Golm, Germany; Department of Biosciences, University of Kuopio, Kuopio, Finland; CRA- Cereal Research Centre, S.S. 16 km 675, 71100 Foggia, Italy; Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel; Department of Plant Sciences, the Weizmann Institute of Science, 76100 Rehovot, Israel

* Corresponding author; email: aaron.fait{at}gmail.com.

The anatomy of strawberry (Fragaria x ananassa ) fruit, in which the achene is found on the outer part of the fruit, makes it an excellent species for studying the regulation of fruit development. It can provide a model for the crosstalk between primary and secondary metabolism, whose role is of pivotal importance in the process. By combining GCMS and LC-MS with the aim of addressing the metabolic regulation underlying fruit-seed development, we simultaneously analysed the composition of primary and secondary metabolites, separately, in achene and receptacle during fruit ripening of strawberry cv. Herut. The results from these analyses suggest that changes in primary and secondary metabolism reflect organ and developmental specificities. For instance, the receptacle was characterised by increases in sugars and their direct derivatives, whilst the achene was characterised by a major decrease in the levels of carbon and nitrogen rich compounds with the exception of storage related metabolites, e.g. raffinose. Furthermore, the receptacle, and to a lower extent the achene, exhibited dynamic fluctuations in the levels and nature of secondary metabolites across the ripening process. In the receptacle, proanthocyanidins and flavonol derivatives characterized mainly early developmental stages, while anthocyanins were abundant in the mature red stage; in the achene, ellagitannin and flavonoids, were abundant during early and late development, respectively. Correlation-based network analysis suggested that metabolism is substantially coordinated during early development in either organ. Nonetheless, a higher degree of connectivity within and between metabolic pathways was measured in the achenes. The data are discussed within the context of current models both of the interaction of primary and secondary metabolism and of the metabolic interaction between the different plant organs.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 2008 by the American Society of Plant Biologists