Identification and genetic characterization of maize cell wall variation for improved biorefinery feedstock characteristics

Pauly, Markus¹  Hake, Sarah² 

[1] UC Berkeley;USDA Albany

关键词: Plant Biomass;    lignocellulosics;    mixed linkage glucan;    maize;   

DOI  :  10.2172/1097059
RP-ID  :  DOE-UCBerkeley-04822
PID  :  OSTI ID: 1097059

学科分类：燃料技术

美国|英语

来源: SciTech Connect

【 摘 要 】

The objectives of this program are to 1) characterize novel maize mutants with altered cell walls for enhanced biorefinery characteristics and 2) find quantitative trait loci (QTLs) related to biorefinery characteristics by taking advantage of the genetic diversity of maize. As a result a novel non-transgenic maize plant (cal1) has been identified, whose stover (leaves and stalk) contain more glucan in their walls leading to a higher saccharification yield, when subjected to a standard enzymatic digestion cocktail. Stacking this trait with altered lignin mutants yielded evene higher saccharification yields. Cal-1 mutants do not show a loss of kernel and or biomass yield when grown in the field . Hence, cal1 biomass provides an excellent feedstock for the biofuel industry.