Amylose in starch : towards an understanding of biosynthesis, structure and function
© 2020 The Author. New Phytologist © 2020 New Phytologist Trust.
| Veröffentlicht in: | The New phytologist. - 1979. - 228(2020), 5 vom: 01. Dez., Seite 1490-1504 |
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| 1. Verfasser: | |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2020
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| Zugriff auf das übergeordnete Werk: | The New phytologist |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't Review GRANULE BOUND STARCH SYNTHASE (GBSS) amylopectin amylose carbohydrate starch starch granules starch synthesis mehr... |
| Zusammenfassung: | © 2020 The Author. New Phytologist © 2020 New Phytologist Trust. Starch granules are composed of two distinct glucose polymers - amylose and amylopectin. Amylose constitutes 5-35% of most natural starches and has a major influence over starch properties in foods. Its synthesis and storage occurs within the semicrystalline amylopectin matrix of starch granules, this poses a great challenge for biochemical and structural analyses. However, the last two decades have seen vast progress in understanding amylose synthesis, including new insights into the action of GRANULE BOUND STARCH SYNTHASE (GBSS), the major glucosyltransferase that synthesises amylose, and the discovery of PROTEIN TARGETING TO STARCH1 (PTST1) that targets GBSS to starch granules. Advances in analytical techniques have resolved the fine structure of amylose, raising new questions on how structure is determined during biosynthesis. Furthermore, the discovery of wild plants that do not produce amylose revives a long-standing question of why starch granules contain amylose, rather than amylopectin alone. Overall, these findings contribute towards a full understanding of amylose biosynthesis, structure and function that will be essential for future approaches to improve starch quality in crops |
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| Beschreibung: | Date Completed 26.04.2021 Date Revised 04.04.2023 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1469-8137 |
| DOI: | 10.1111/nph.16858 |