The construction of a secondary cell wall is an important and necessary developmental decision that sup- ports cell function and plant stature. Unlike the primary cell walls, which are initiated during cell division a...The construction of a secondary cell wall is an important and necessary developmental decision that sup- ports cell function and plant stature. Unlike the primary cell walls, which are initiated during cell division and develop along with the expansion of the cells, secondary cell walls are constructed after the cells have stopped growing. Hence, the transition from primary to secondary wall synthesis marks an important and distinct metabolic investment by the plant. This transition requires a coordi- nated change of a plethora of cellular processes, including hormonal, transcriptional and post-transcriptional activi- ties, metabolic flux re-distributions and enzymatic activities. In this review, we briefly summarize the hormonal and transcriptional control of the primary to secondary wall transition, and highlight important gaps in our under- standing of the metabolic framework that support the transition. Several tools that may aid in future research efforts to better understand the changes in cell wall synthesis during the trans-differentiation are also discussed.展开更多
基金the European Commission’s Directorate General for Research within the 7th Framework Program(FP7/2007–2013)under Grant Agreement 270089(MULTIBIOPRO to ARF and SP)
文摘The construction of a secondary cell wall is an important and necessary developmental decision that sup- ports cell function and plant stature. Unlike the primary cell walls, which are initiated during cell division and develop along with the expansion of the cells, secondary cell walls are constructed after the cells have stopped growing. Hence, the transition from primary to secondary wall synthesis marks an important and distinct metabolic investment by the plant. This transition requires a coordi- nated change of a plethora of cellular processes, including hormonal, transcriptional and post-transcriptional activi- ties, metabolic flux re-distributions and enzymatic activities. In this review, we briefly summarize the hormonal and transcriptional control of the primary to secondary wall transition, and highlight important gaps in our under- standing of the metabolic framework that support the transition. Several tools that may aid in future research efforts to better understand the changes in cell wall synthesis during the trans-differentiation are also discussed.
