What question did this study set out to answer?

To determine the distinct regulatory roles of transcription factors MYB34, MYB51, and MYB122 in controlling indolic glucosinolate biosynthesis across plant tissues and under specific hormone treatments.

January 16, 2014Molecular PlantOpen Access

MYB34, MYB51, and MYB122 Distinctly Regulate Indolic Glucosinolate Biosynthesis in Arabidopsis thaliana

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Authors

HFHenning FrerigmannMax Planck Institute for Plant Breeding Research TGTamara GigolashviliUniversity of Cologne

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Implication

Mutant analysis reveals distinct spatial and hormonal control of indolic glucosinolate biosynthesis in Arabidopsis thaliana, highlighting specialized regulatory niches among three MYB factors.

Key Points

To determine the distinct regulatory roles of transcription factors MYB34, MYB51, and MYB122 in controlling indolic glucosinolate biosynthesis across plant tissues and under specific hormone treatments.
Measured indolic glucosinolate (IG) accumulation in the roots and shoots of Arabidopsis thaliana seedlings.
Profiled glucosinolate accumulation across single (myb34, myb51, myb122), double (myb34 myb51), and triple (myb34 myb51 myb122) knockout mutants.
Assessed mutant responses following exposure to abscisic acid (ABA), salicylic acid (SA), jasmonate (JA), or ethylene (ET).
MYB34 primarily controls indolic glucosinolate biosynthesis in roots and mediates responses to ABA and JA signaling.
MYB51 acts as the primary regulator of IG synthesis in shoots and under SA and ET signaling, whereas MYB122 plays an accessory role in JA- and ET-induced pathways.
The myb34 myb51 myb122 triple mutant is completely devoid of indolic glucosinolates, establishing that these three regulators are indispensable for basal IG production.

Cite This Study

Frerigmann et al. (2014) studied this question.

synapsesocial.com/papers/6a099db116dfdfe7ed343a85 https://doi.org/10.1093/mp/ssu004

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Implication

Mutant analysis reveals distinct spatial and hormonal control of indolic glucosinolate biosynthesis in Arabidopsis thaliana, highlighting specialized regulatory niches among three MYB factors.

MYB34, MYB51, and MYB122 Distinctly Regulate Indolic Glucosinolate Biosynthesis in Arabidopsis thaliana

Discussion

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Implication

Key Points

Cite This Study

MYB34, MYB51, and MYB122 Distinctly Regulate Indolic Glucosinolate Biosynthesis in Arabidopsis thaliana

Discussion

Member takes

Implication

Key Points

Cite This Study

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