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  The decoration of specialized metabolites influences stylar development

Li, J., Schuman, M. C., Halitschke, R., Li, X., Guo, H., Grabe, V., et al. (2018). The decoration of specialized metabolites influences stylar development. eLife, 7: e38611. doi:10.7554/eLife.38611.

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http://dx.doi.org/10.7554/eLife.38611 (Publisher version)
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 Creators:
Li, Jiancai1, Author              
Schuman, Meredith C.1, Author              
Halitschke, Rayko1, Author              
Li, Xiang1, 2, Author              
Guo, Han1, Author              
Grabe, Veit3, Author              
Hammer, Austin, Author
Baldwin, Ian Thomas1, Author              
Affiliations:
1Department of Molecular Ecology, Prof. I. T. Baldwin, MPI for Chemical Ecology, Max Planck Society, ou_24029              
2IMPRS on Ecological Interactions, MPI for Chemical Ecology, Max Planck Society, Jena, DE, ou_421900              
3Microscopy Service, Dr. Veit Grabe, MPI for Chemical Ecology, Max Planck Society, ou_3171478              

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 Abstract: Plants produce many different specialized (secondary) metabolites that function in solving ecological challenges; few are known to function in growth or other primary processes. 17-hydroxygeranylinalool diterpene glycosides (DTGs) are abundant herbivory-induced, structurally diverse and commonly malonylated defense metabolites in Nicotiana attenuata plants. By identifying and silencing a malonyltransferase, NaMaT1, involved in DTG malonylation, we found that DTG malonylation percentages are normally remarkably uniform, but when disrupted, result in DTG-dependent reduced floral style lengths, which in turn result from reduced stylar cell sizes, IAA contents, and YUC activity; phenotypes that could be restored by IAA supplementation or by silencing the DTG pathway. Moreover, the Nicotiana genus-specific JA-deficient short-style phenotype also results from alterations in DTG malonylation patterns. Decorations of plant specialized metabolites can be tuned to remarkably uniform levels, and this regulation plays a central but poorly understood role in controlling the development of specific plant parts, such as floral styles.

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 Dates: 2018-09-232018-10-05
 Publication Status: Published online
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 Identifiers: Other: ITB592
DOI: 10.7554/eLife.38611
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Title: eLife
Source Genre: Journal
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Publ. Info: Cambridge : eLife Sciences Publications
Pages: - Volume / Issue: 7 Sequence Number: e38611 Start / End Page: - Identifier: ISSN: 2050-084X
CoNE: https://pure.mpg.de/cone/journals/resource/2050-084X