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A Molecular Blueprint of Lignin Repression

par Behr, Marc ;Guerriero, Gea;Grima-Pettenati, Jacqueline;Baucher, Marie
Référence Trends in plant science, 24, 11, page (1052-1064)
Publication Publié, 2019-11-01

Article révisé par les pairs

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Résumé :

Although lignin is essential to ensure the correct growth and development of land plants, it may be an obstacle to the production of lignocellulosics-based biofuels, and reduces the nutritional quality of crops used for human consumption or livestock feed. The need to tailor the lignocellulosic biomass for more efficient biofuel production or for improved plant digestibility has fostered considerable advances in our understanding of the lignin biosynthetic pathway and its regulation. Most of the described regulators are transcriptional activators of lignin biosynthesis, but considerably less attention has been devoted to the repressors of this pathway. We provide a comprehensive overview of the molecular factors that negatively impact on the lignification process at both the transcriptional and post-transcriptional levels.