RT Journal Article
T1 Elucidating the multifunctional role of the cell wall components in the maize exploitation
A1 López Malvar, Ana
A1 Malvar, Rosa Ana
A1 Souto, Xose Carlos
A1 Gómez, Leonardo Dario
A1 Simister, Rachael
A1 Encina, Antonio
A1 Barros Rios, Jaime
A1 Pereira Crespo, Sonia
A1 Santiago Carabelos, Rogelio
K1 3103.01 Producción de Cultivos
K1 3103.08 Gestión de la Producción Vegetal
K1 2417 Biología Vegetal (Botánica)
AB BackgroundBesides the use of maize grain as food and feed, maize stover can be a profitable by-product for cellulosic ethanol production, whereas the whole plant can be used for silage production. However, yield is reduced by pest damages, stem corn borers being one of the most important yield constraints. Overall, cell wall composition is key in determining the quality of maize biomass, as well as pest resistance. This study aims to evaluate the composition of the four cell wall fractions (cellulose, hemicellulose, lignin and hydroxycinnamates) in diverse maize genotypes and to understand how this composition influences the resistance to pests, ethanol capacity and digestibility.ResultsThe following results can be highlighted: (i) pests’ resistant materials may show cell walls with low p-coumaric acid and low hemicellulose content; (ii) inbred lines showing cell walls with high cellulose content and high diferulate cross-linking may present higher performance for ethanol production; (iii) and inbreds with enhanced digestibility may have cell walls poor in neutral detergent fibre and diferulates, combined with a lignin polymer composition richer in G subunits.ConclusionsResults evidence that there is no maize cell wall ideotype among the tested for optimal performance for various uses, and maize plants should be specifically bred for each particular application
PB BMC Plant Biology
SN 14712229
YR 2021
FD 2021-06-02
LK http://hdl.handle.net/11093/2760
UL http://hdl.handle.net/11093/2760
LA eng
NO BMC Plant Biology, 21(1): 251 (2021)
NO Agencia Estatal de Investigación | Ref. RTI2018–096776-B-C21
DS Investigo
RD 11-dic-2024