CmMYB8 encodes an R2R3 MYB transcription factor which represses lignin and flavonoid synthesis in chrysanthemum
Copyright © 2020 Elsevier Masson SAS. All rights reserved.
| Veröffentlicht in: | Plant physiology and biochemistry : PPB. - 1991. - 149(2020) vom: 25. Apr., Seite 217-224 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2020
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| Zugriff auf das übergeordnete Werk: | Plant physiology and biochemistry : PPB |
| Schlagworte: | Journal Article Chrysanthemum Flavonoids Lignin R2R3-MYB factors Plant Proteins Transcription Factors 9005-53-2 |
| Zusammenfassung: | Copyright © 2020 Elsevier Masson SAS. All rights reserved. R2R3-MYB transcription factors are important regulators of the growth and development of plants. Here, CmMYB8 a chrysanthemum gene encoding an R2R3-MYB transcription factor, was isolated and functionally characterized. The gene was transcribed throughout the plant, but most strongly in the stem. When CmMYB8 was over-expressed, a number of genes encoding components of lignin synthesis were down-regulated, and the plants' lignin content was reduced. The composition of the lignin in the transgenic plants was also altered, and its S/G ratio was reduced. A further consequence of the over-expression of CmMYB8 was to lessen the transcript abundance of key genes involved in flavonoid synthesis, resulting in a reduced accumulation of flavonoids. The indication is that the CmMYB8 protein participates in the negative regulation of both lignin and flavonoid synthesis |
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| Beschreibung: | Date Completed 17.07.2020 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1873-2690 |
| DOI: | 10.1016/j.plaphy.2020.02.010 |