Ferulate Role in Suberin
REVIEW
REVIEW
Plant Signaling & Behavior 5:8, 1-6; August 2010; © 2010 Landes Bioscience
Unraveling ferulate role in suberin and periderm biology by reverse genetics
Olga Serra,1 Mercè Figueras,1 Rochus Franke,2 Salome Prat3 and Marisa Molinas1,*
1
This manuscript has been published online, prior to printing. Once the issue is complete and page numbers have been assigned, the citation will change accordingly.
Laboratori del Suro; Departament de Biologia; Facultat de Ciències; Universitat de Girona; Girona, Spain; 2Institute of Cellular and Molecular Botany; University of Bonn; Bonn, Germany; 3Centro Nacional de Biotecnología; Consejo Superior de Investigaciones Científicas; Campus Universidad Autónoma de Madrid; Madrid, Spain
Key words: BAHD feruloyl acyltransferases, ferulate, periderm, potato tuber skin, suberin, suberized tissues, wax Abbreviations: TEM, transmission electron microscope; SEM, scanning electron microscope; FHT, ω-hydroxyacid/fatty alcohol hydroxycinnamoyl transferase; GPAT5, glycerol phosphate acyltransferase 5 and to restrict infection. Suberization takes place on the periderm of stems, roots and tubers and in a variety of other barrier layers, such as the root endodermis or the seed coat. Suberin is a complex biopolymer made of cross-linked poly(aliphatic) and poly(aromatic) domains (reviewed in refs. 1–5). The aliphatic domain (aliphatic suberin) consists of a glycerol-based fatty acid derived polyester that, on trans-esterification, releases small amounts of p-hydroxycinnamic acid (mainly ferulic) together with aliphatic monomers and glycerol.6 The aromatic domain is a lignin-like polymer of oxydatively cross-linked phenolics.7 Generally, but not always, suberin contains a certain amount of soluble lipids or waxes embedded into the aliphatic polymer matrix.8,9 Suberin and embedded wax are deposited within the primary cell wall to form a secondary wall that usually appears as a lamellar structure of alternating
REVIEW
Plant Signaling & Behavior 5:8, 1-6; August 2010; © 2010 Landes Bioscience
Unraveling ferulate role in suberin and periderm biology by reverse genetics
Olga Serra,1 Mercè Figueras,1 Rochus Franke,2 Salome Prat3 and Marisa Molinas1,*
1
This manuscript has been published online, prior to printing. Once the issue is complete and page numbers have been assigned, the citation will change accordingly.
Laboratori del Suro; Departament de Biologia; Facultat de Ciències; Universitat de Girona; Girona, Spain; 2Institute of Cellular and Molecular Botany; University of Bonn; Bonn, Germany; 3Centro Nacional de Biotecnología; Consejo Superior de Investigaciones Científicas; Campus Universidad Autónoma de Madrid; Madrid, Spain
Key words: BAHD feruloyl acyltransferases, ferulate, periderm, potato tuber skin, suberin, suberized tissues, wax Abbreviations: TEM, transmission electron microscope; SEM, scanning electron microscope; FHT, ω-hydroxyacid/fatty alcohol hydroxycinnamoyl transferase; GPAT5, glycerol phosphate acyltransferase 5 and to restrict infection. Suberization takes place on the periderm of stems, roots and tubers and in a variety of other barrier layers, such as the root endodermis or the seed coat. Suberin is a complex biopolymer made of cross-linked poly(aliphatic) and poly(aromatic) domains (reviewed in refs. 1–5). The aliphatic domain (aliphatic suberin) consists of a glycerol-based fatty acid derived polyester that, on trans-esterification, releases small amounts of p-hydroxycinnamic acid (mainly ferulic) together with aliphatic monomers and glycerol.6 The aromatic domain is a lignin-like polymer of oxydatively cross-linked phenolics.7 Generally, but not always, suberin contains a certain amount of soluble lipids or waxes embedded into the aliphatic polymer matrix.8,9 Suberin and embedded wax are deposited within the primary cell wall to form a secondary wall that usually appears as a lamellar structure of alternating