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  A manipulation of carotenoid metabolism influence biomass partitioning and fitness in tomato

Mi, J., Vallarino, J. G., Petřík, I., Novák, O., Correa, S. M., Kosmacz, M., et al. (2022). A manipulation of carotenoid metabolism influence biomass partitioning and fitness in tomato. Metabolic Engineering, 70, 166-180. doi:10.1016/j.ymben.2022.01.004.

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Genre: Journal Article

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 Creators:
Mi, Jianing1, Author
Vallarino, J. G.2, Author              
Petřík, Ivan1, Author
Novák, Ondřej1, Author
Correa, S. M.3, Author              
Kosmacz, M.4, Author              
Havaux, Michel1, Author
Rodriguez-Concepcion, Manuel1, Author
Al-Babili, Salim1, Author
Fernie, A. R.2, Author              
Skirycz, A.5, Author              
Moreno, J.C.4, Author              
Affiliations:
1external, ou_persistent22              
2Central Metabolism, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753339              
3Genetics of Metabolic Traits, Cooperative Research Groups, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_2497694              
4Small Molecules, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753340              
5Small-Molecule Signalling, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_2586692              

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Free keywords: Abiotic stress tolerance, Apocarotenoids, Biomass and yield, Carotenoids, Metabolic engineering, Metabolites and lipids, Phytohormones
 Abstract: Improving yield, nutritional value and tolerance to abiotic stress are major targets of current breeding and biotechnological approaches that aim at increasing crop production and ensuring food security. Metabolic engineering of carotenoids, the precursor of vitamin-A and plant hormones that regulate plant growth and response to adverse growth conditions, has been mainly focusing on provitamin A biofortification or the production of high-value carotenoids. Here, we show that the introduction of a single gene of the carotenoid biosynthetic pathway in different tomato cultivars induced profound metabolic alterations in carotenoid, apocarotenoid and phytohormones pathways. Alterations in isoprenoid- (abscisic acid, gibberellins, cytokinins) and non-isoprenoid (auxin and jasmonic acid) derived hormones together with enhanced xanthophyll content influenced biomass partitioning and abiotic stress tolerance (high light, salt, and drought), and it caused an up to 77% fruit yield increase and enhanced fruit's provitamin A content. In addition, metabolic and hormonal changes led to accumulation of key primary metabolites (e.g. osmoprotectants and antiaging agents) contributing with enhanced abiotic stress tolerance and fruit shelf life. Our findings pave the way for developing a new generation of crops that combine high productivity and increased nutritional value with the capability to cope with climate change-related environmental challenges.

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Language(s): eng - English
 Dates: 2022-01-11
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.ymben.2022.01.004
 Degree: -

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Title: Metabolic Engineering
Source Genre: Journal
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Publ. Info: Brugge, Belgium : Academic Press
Pages: - Volume / Issue: 70 Sequence Number: - Start / End Page: 166 - 180 Identifier: ISSN: 1096-7176
CoNE: https://pure.mpg.de/cone/journals/resource/954922651200