NDLI: A Scutellaria baicalensis R2R3-MYB gene, SbMYB8, regulates flavonoid biosynthesis and improves drought stress tolerance in transgenic tobacco

Content Provider	Springer Nature Link
Author	Yuan, Yuan Qi, Linjie Yang, Jian Wu, Chong Liu, Yunjun Huang, Luqi
Copyright Year	2014
Abstract	R2R3-MYB proteins are involved in the primary and secondary metabolism, developmental processes and the responses to biotic and abiotic stresses. Little is known about the functions of R2R3-MYB proteins in Scutellaria baicalensis Georgi which is a traditional Chinese medicinal plants. In this study, the function of a S. baicalensis R2R3-MYB protein, SbMYB8, was investigated. SbMYB8 had similar expression pattern with SbC4H and SbCHS in ABA-treated S. baicalensis, indicating that SbMYB8 might be involved in the flavonoid metabolism. SbMYB8 protein could bind to the GmMYB92 BS3 sequence of SbCHS promoter region, regulating the expression of SbCHS. The SbMYB8 protein was localized to the nucleus where it activated transcription. The transgenic tobacco plants over-expressing SbMYB8 had higher caffeoylquinic acid contents, compared to that in wild type plants. Overexpression of SbMYB8 also changed the expression level of some flavonoid biosynthesis-related genes. It was found that overexpression of SbMYB8 can improve stress tolerance of transgenic plants, and can alter the activity and expression levels of some antioxidant enzymes. These results indicate that SbMYB8 plays important roles in flavonoid biosynthesis and stress tolerance of plant.
Starting Page	961
Ending Page	972
Page Count	12
File Format	PDF
ISSN	01676857
Journal	Plant Cell, Tissue and Organ Culture (PCTOC)
Volume Number	120
Issue Number	3
e-ISSN	15735044
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-10-29
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	R2R3-MYB protein SbMYB8 Medicinal plant Flavonoid biosynthesis Stress tolerance Transgenic tobacco Plant Sciences Plant Physiology Plant Genetics & Genomics Plant Pathology
Content Type	Text
Resource Type	Article
Subject	Horticulture

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Erratum to: A Scutellaria baicalensis R2R3-MYB gene, SbMYB8, regulates flavonoid biosynthesis and improves drought stress tolerance in transgenic tobacco

Erratum to: A Scutellaria baicalensis R2R3-MYB gene, SbMYB8, regulates flavonoid biosynthesis and improves drought stress tolerance in transgenic tobacco

The Scutellaria baicalensis R2R3-MYB transcription factors modulates flavonoid biosynthesis by regulating GA metabolism in transgenic tobacco plants

The Scutellaria baicalensis R2R3-MYB Transcription Factors Modulates Flavonoid Biosynthesis by Regulating GA Metabolism in Transgenic Tobacco Plants

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A Scutellaria baicalensis R2R3-MYB gene, SbMYB8, regulates flavonoid biosynthesis and improves drought stress tolerance in transgenic tobacco

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Erratum to: A Scutellaria baicalensis R2R3-MYB gene, SbMYB8, regulates flavonoid biosynthesis and improves drought stress tolerance in transgenic tobacco

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