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Translational regulation contributes to the elevated CO2 response in two Solanum species.

ABSTRACT: Understanding the impact of elevated CO2 (eCO2 ) in global agriculture is important given climate change projections. Breeding climate-resilient crops depends on genetic variation within naturally varying populations. The effect of genetic variation in response to eCO2 is poorly understood, especially in crop species. We describe the different ways in which Solanum lycopersicum and its wild relative S. pennellii respond to eCO2 , from cell anatomy, to the transcriptome, and metabolome. We further validate the importance of translational regulation as a potential mechanism for plants to adaptively respond to rising levels of atmospheric CO2 .

SUBMITTER: Gray SB

PROVIDER: S-EPMC7216843 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Translational regulation contributes to the elevated CO2 response in two Solanum species.

Gray Sharon B SB Rodriguez-Medina Joel J Rusoff Samuel S Toal Ted W TW Kajala Kaisa K Runcie Daniel E DE Brady Siobhan M SM

The Plant journal : for cell and molecular biology 20200116 2

Understanding the impact of elevated CO2 (eCO2 ) in global agriculture is important given climate change projections. Breeding climate-resilient crops depends on genetic variation within naturally varying populations. The effect of genetic variation in response to eCO2 is poorly understood, especially in crop species. We describe the different ways in which Solanum lycopersicum and its wild relative S. pennellii respond to eCO2 , from cell anatomy, to ...[more]

PMID: 31797460

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Translational regulation contributes to the elevated CO2 response in two Solanum species

Project description:A systems-level study identifies inter-specific translational regulation as important in the elevated CO2 response in two Solanum species

2019-11-26 | GSE126430 | GEO

Translational regulation contributes to the elevated CO2 response in two Solanum species

Project description:Translational regulation contributes to the elevated CO2 response in two Solanum species

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Sugar-induced de novo cytokinin biosynthesis contributes to Arabidopsis growth under elevated CO2.

Project description:Carbon availability is a major regulatory factor in plant growth and development. Cytokinins, plant hormones that play important roles in various aspects of growth and development, have been implicated in the carbon-dependent regulation of plant growth; however, the details of their involvement remain to be elucidated. Here, we report that sugar-induced cytokinin biosynthesis plays a role in growth enhancement under elevated CO2 in Arabidopsis thaliana. Growing Arabidopsis seedlings under elevated CO2 resulted in an accumulation of cytokinin precursors that preceded growth enhancement. In roots, elevated CO2 induced two genes involved in de novo cytokinin biosynthesis: an adenosine phosphate-isopentenyltransferase gene, AtIPT3, and a cytochrome P450 monooxygenase gene, CYP735A2. The expression of these genes was inhibited by a photosynthesis inhibitor, DCMU, under elevated CO2, and was enhanced by sugar supplements, indicating that photosynthetically generated sugars are responsible for the induction. Consistently, cytokinin precursor accumulation was enhanced by sugar supplements. Cytokinin biosynthetic mutants were impaired in growth enhancement under elevated CO2, demonstrating the involvement of de novo cytokinin biosynthesis for a robust growth response. We propose that plants employ a system to regulate growth in response to elevated CO2 in which photosynthetically generated sugars induce de novo cytokinin biosynthesis for growth regulation.

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The Regulation of Plant Secondary Metabolism in Response to Abiotic Stress: Interactions Between Heat Shock and Elevated CO2.

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Differential Protein Expression in Response to Abiotic Stress in Two Potato Species: Solanum commersonii Dun and Solanum tuberosum L.

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