Targeting expression of a fungal ferulic acid esterase to the apoplast, endoplasmic reticulum or golgi can disrupt feruloylation of the growing cell wall and increase the biodegradability of tall fescue (Festuca arundinacea)

Plant Biotechnology Journal
Marcia M de O BuanafinaPhillip Morris

Abstract

In the cell walls of grasses, ferulic acid is esterified to arabinoxylans and undergoes oxidative reactions to form ferulates dimers, trimers and oligomers. Feruloylation of arabinoxylan is considered important not only because it leads to cross-linked xylans but also because ferulates may act as a nucleating site for the formation of lignin and hence link arabinoxylans to lignin by forming a lignin-ferulate-arabinoxylan complex. Such cross-linking is among the main factors inhibiting the release of fermentable carbohydrates from grasses either for ruminant nutrition or for biofuel production. We have found that significant reductions in the levels of monomeric and dimeric phenolics can be achieved in the growing cell walls during plant development in leaves of Festuca arundinacea by constitutive intracellular targeted expression of Aspergillus niger ferulic acid esterase (FAEA). We propose that this occurred by directly disrupting ester bonds linking phenolics to cell wall polysaccharides by apoplast targeting or by preventing excessive feruloylation of cell wall carbohydrates prior to their incorporation into the cell wall, by targeting to the Golgi membrane system. Plants with lower cell wall ferulate levels, which showed in...Continue Reading

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Citations

Sep 13, 2011·Plant Molecular Biology·Gennady PogorelkoOlga A Zabotina
Jun 2, 2015·Journal of Food Science and Technology·Anshu SinghRintu Banerjee
Feb 14, 2012·Plant Science : an International Journal of Experimental Plant Biology·Hans-Joachim G JungGautam Sarath
Oct 21, 2014·Plant Biotechnology Journal·Quanzi LiVincent L Chiang
Nov 29, 2014·Plant Biotechnology Journal·Kerrie FarrarNaomi Cope-Selby
Nov 29, 2014·Plant Biotechnology Journal·Agnelo FurtadoRobert J Henry
Jul 14, 2011·The Plant Journal : for Cell and Molecular Biology·Akira TabuchiDaniel J Cosgrove
May 28, 2013·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Hsin-Yu FangBing-Hung Chen
Jun 9, 2015·Current Opinion in Plant Biology·Dominique LoquéMarkus Pauly
Oct 6, 2016·Critical Reviews in Biotechnology·Ellis C O'Neill, Steven Kelly
May 31, 2017·Plant Biotechnology Journal·Rakesh BhatiaMaurice Bosch
Oct 3, 2019·Planta·Marcia M de O BuanafinaHoward W Fescemyer
Nov 30, 2019·BMC Plant Biology·A López-MalvarR Santiago
Jan 24, 2020·Natural Product Reports·Ewelina MnichPeter Ulvskov

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