Xyloglucan remodelling enzymes and the mechanics of plant seed and fruit biology

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Abstract

The developmental transition from flowers to the mature diaspores (seeds or fruits) depends on cell growth and differentiation (Balanza et al., 2016; Finch-Savage and Leubner-Metzger, 2006). The plant cell wall is a dynamic nanoscale network for which the classical model and role of xyloglucan-cellulose tethers in wall structure and cell growth was challenged by recent results from genetics, biomechanics and advanced imaging (Cosgrove, 2018; Moulia, 2013; Zhang et al., 2021a). Xyloglucan (XyG), the predominant hemicellulose, is composed of a a-1,4-glucan backbone that is consecutively substituted with a-1,6-linked xylosyl residues (Frankova and Fry, 2013; Pauly and Keegstra, 2016). Di Marzo et al. (2021) demonstrated that the MADS-box transcription factor SEEDSTICK (STK) specifically controls seed and fruit biology by a-xylosidase (aXYL) mediated XyG-remodelling.
Original languageEnglish
Pages (from-to)1253-1257
Number of pages5
JournalJournal of Experimental Botany
Volume73
Issue number5
DOIs
Publication statusPublished - 2 Mar 2022

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