Cell Wall Remodeling in Abscission Zone Cells during Ethylene-Promoted Fruit Abscission in Citrus
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Other documents of the author: Merelo, Paz; Agusti, Javier; Arbona, Vicent; Costa, Mario L.; Estornell, Leandro H.; Gomez-Cadenas, Aurelio; Coimbra, Silvia; Gómez, María D.; Pérez Amador, Miguel A.; Domingo, Concha; Talón, Manuel; Tadeo, Francisco R.
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Title
Cell Wall Remodeling in Abscission Zone Cells during Ethylene-Promoted Fruit Abscission in CitrusAuthor (s)
Date
2017-02-08Publisher
Frontiers MediaBibliographic citation
MERELO, Paz; AGUSTÍ, Javier; ARBONA MENGUAL, Vicent; COSTA, Mario L.; ESTORNELL, Leandro H.; GÓMEZ CADENAS, Aurelio; COIMBRA, Silvia; GÓMEZ, María D.; PÉREZ AMADOR, Miguel A.; DOMINGO, Concha; TALÓN, Manuel; TADEO, Francisco R. Cell Wall Remodeling in Abscission Zone Cells during Ethylene-Promoted Fruit Abscission in Citrus. Frontiers in Plant Science (2017), v. 8Type
info:eu-repo/semantics/articlePublisher version
https://www.frontiersin.org/articles/10.3389/fpls.2017.00126/fullVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
Abscission is a cell separation process by which plants can shed organs such as fruits,
leaves, or flowers. The process takes place in specific locations termed abscission zones.
In fruit crops like citrus, fruit ... [+]
Abscission is a cell separation process by which plants can shed organs such as fruits,
leaves, or flowers. The process takes place in specific locations termed abscission zones.
In fruit crops like citrus, fruit abscission represents a high percentage of annual yield
losses. Thus, understanding the molecular regulation of abscission is of capital relevance
to control production. To identify genes preferentially expressed within the citrus fruit
abscission zone (AZ-C), we performed a comparative transcriptomics assay at the cell
type resolution level between the AZ-C and adjacent fruit rind cells (non-abscising tissue)
during ethylene-promoted abscission. Our strategy combined laser microdissection with
microarray analysis. Cell wall modification-related gene families displayed prominent
representation in the AZ-C. Phylogenetic analyses of such gene families revealed a link
between phylogenetic proximity and expression pattern during abscission suggesting
highly conserved roles for specific members of these families in abscission. Our
transcriptomic data was validated with (and strongly supported by) a parallel approach
consisting on anatomical, histochemical and biochemical analyses on the AZ-C during
fruit abscission. Our work identifies genes potentially involved in organ abscission and
provides relevant data for future biotechnology approaches aimed at controlling such
crucial process for citrus yield. [-]
Is part of
Frontiers in Plant Science (2017), v. 8Investigation project
1) Spanish Instituto Nacional de Investigaciones Agrarias (grant RTA2008-00065-00-00 to FT [including a PhD fellowship for PM] and RTA2014-00071-C06-01 to MT); 2) Spanish Ministerio de Economia e Innovación (grants PSE- 060000-2009-8 and IPT-010000-2010-43 to MT and BIO2011- 26302 to MP); 3) Spanish Ministerio de Industria (grant AGL2011-30240 to MT); 4) “Juan de la Cierva” and an INIA/CCAA postdoctoral contract, respectively.Rights
info:eu-repo/semantics/openAccess
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