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  Sulfur Deficiency Induced genes affect seed protein accumulation and composition under sulfate deprivation

Aarabi, F., Rakpenthai, A., Barahimipour, R., Gorka, M., Alseekh, S., Zhang, Y., et al. (2021). Sulfur Deficiency Induced genes affect seed protein accumulation and composition under sulfate deprivation. Plant Physiology. doi:10.1093/plphys/kiab386.

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Aarabi, F.1, Author              
Rakpenthai, A.2, Author              
Barahimipour, R.3, Author              
Gorka, M.4, Author              
Alseekh, S.5, Author              
Zhang, YJ1, Author              
Salem, M.A.6, Author              
Brückner, F.2, Author              
Omranian, N.7, Author              
Watanabe, M.2, Author              
Nikoloski, Z.7, Author              
Giavalisco, P.6, Author              
Tohge, T.1, Author              
Graf, A.4, Author              
Fernie, A. R.1, Author              
Hoefgen, R.2, Author              
Affiliations:
1Central Metabolism, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753339              
2Amino Acid and Sulfur Metabolism, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753337              
3Translational Regulation in Plants, Department Bock, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_2324691              
4Plant Proteomics, Department Stitt, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1950285              
5The Genetics of Crop Metabolism, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_3244836              
6Experimental Systems Biology, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753342              
7Mathematical Modelling and Systems Biology - Nikoloski, Cooperative Research Groups, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753310              

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 Abstract: Sulfur Deficiency Induced proteins SDI1 and SDI2 play a fundamental role in sulfur homeostasis under sulfate-deprived conditions (-S) by down-regulating glucosinolates. Here, we identified that besides glucosinolate regulation under –S, SDI1 down-regulates another sulfur pool, the S-rich 2S seed storage proteins in Arabidopsis (Arabidopsis thaliana) seeds. We identified that MYB28 directly regulates 2S seed storage proteins by binding to the At2S4 promoter. We also showed that SDI1 down-regulates 2S seed storage proteins by forming a ternary protein complex with MYB28 and MYC2, another transcription factor involved in the regulation of seed storage proteins. These findings have significant implications for the understanding of plant responses to sulfur deficiency.

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Language(s): eng - English
 Dates: 2021-09
 Publication Status: Published in print
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 Identifiers: DOI: 10.1093/plphys/kiab386
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Title: Plant Physiology
  Other : Plant Physiol.
Source Genre: Journal
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Publ. Info: Bethesda, Md. : American Society of Plant Biologists
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: ISSN: 0032-0889
CoNE: https://pure.mpg.de/cone/journals/resource/991042744294438