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Relationship of cell wall composition to in vitro cell wall digestibility of maize inbred line stems
Author(s) -
Méchin Valérie,
Argillier Odile,
Menanteau Véronique,
Barrière Yves,
Mila Isabelle,
Pollet Brigitte,
Lapierre Catherine
Publication year - 2000
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/(sici)1097-0010(200004)80:5<574::aid-jsfa575>3.0.co;2-r
Subject(s) - lignin , cell wall , composition (language) , in vitro , ferulic acid , chemistry , inbred strain , chemical composition , food science , botany , cell culture , biology , biochemistry , gene , organic chemistry , genetics , linguistics , philosophy
The phenolic equipment of maize stem tissues was investigated in relation to the feeding value of the detergent fibre components. Sixteen maize inbred lines, including three brown‐midrib 3 mutants and their normal counterparts, were selected for highly divergent in vitro cell wall digestibility. These lines were grown during two years. Maize stems were analysed for detergent fibre concentration, esterified and etherified p ‐hydroxycinnamic acids, lignin content and structure and in vitro digestibility. A large genotypic variation was found for neutral detergent fibre, cell wall phenolic composition and cell wall digestibility. Within the normal maize lines the in vitro neutral detergent fibre digestibility (IVNDFD) of stem fractions was negatively correlated with their Klason lignin content. A multiple regression model based on esterified p ‐coumaric acid and lignin composition as two explanatory variates accounted for 58% of the IVNDFD variation. In this study, three normal maize inbred lines displaying a lignin content and a cell wall digestibility level close to those observed in the three bm3 lines could be detected, which opens up new breeding avenues. © 2000 Society of Chemical Industry