Can genetic engineering of lignin deposition be accomplished without an unacceptable yield penalty?

Autor: Bonawitz ND; Department of Biochemistry, Purdue University, West Lafayette, IN 47907-2063, United States. nbonawit@purdue.edu, Chapple C
Jazyk: angličtina
Zdroj: Current opinion in biotechnology [Curr Opin Biotechnol] 2013 Apr; Vol. 24 (2), pp. 336-43. Date of Electronic Publication: 2012 Dec 07.
DOI: 10.1016/j.copbio.2012.11.004
Abstrakt: The secondary cell wall polymer lignin impedes the extraction of fermentable sugars from biomass, and has been one of the major impediments in the development of cost-effective biofuel technologies. Unfortunately, attempts to genetically engineer lignin biosynthesis frequently result in dwarfing or developmental abnormalities of unknown cause, thus limiting the benefits of increased fermentable sugar yield. In this brief review, we explore some of the possible mechanisms that could underlie this poorly understood phenomenon, with the expectation that an understanding of the cause of dwarfing in lignin biosynthetic mutants and transgenic plants could lead to new strategies for the development of improved bioenergy feedstocks.
(Copyright © 2012 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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