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Chemical imaging reveals diverse functions of tricarboxylic acid metabolites in root growth and development. | LitMetric

AI Article Synopsis

  • Understanding plant growth is essential for agriculture and studying multicellular development; this study uses DESI-MSI for chemical mapping of maize roots.
  • The research identifies patterns of small molecule distribution linked to stem cell differentiation, focusing on TCA cycle metabolites which show varying levels in different root regions.
  • Key metabolites like succinate and citrate influence root development in unique ways, indicating that their effects on stem cells are not directly related to ATP production, offering new insights for enhancing plant growth.

Article Abstract

Understanding how plants grow is critical for agriculture and fundamental for illuminating principles of multicellular development. Here, we apply desorption electrospray ionization mass spectrometry imaging (DESI-MSI) to the chemical mapping of the developing maize root. This technique reveals a range of small molecule distribution patterns across the gradient of stem cell differentiation in the root. To understand the developmental logic of these patterns, we examine tricarboxylic acid (TCA) cycle metabolites. In both Arabidopsis and maize, we find evidence that elements of the TCA cycle are enriched in developmentally opposing regions. We find that these metabolites, particularly succinate, aconitate, citrate, and α-ketoglutarate, control root development in diverse and distinct ways. Critically, the developmental effects of certain TCA metabolites on stem cell behavior do not correlate with changes in ATP production. These results present insights into development and suggest practical means for controlling plant growth.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10160030PMC
http://dx.doi.org/10.1038/s41467-023-38150-zDOI Listing

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