cis-prenyltransferase 3 and α/β-hydrolase are new determinants of dolichol accumulation in Arabidopsis

Katarzyna Gawarecka, Joanna Siwinska, Jaroslaw Poznanski, Agnieszka Onysk, Przemyslaw Surowiecki, Karolina Sztompka, Liliana Surmacz, Ji Hoon Ahn, Arthur Korte, Ewa Swiezewska, Anna Ihnatowicz

Research output: Contribution to journalArticlepeer-review

Abstract

Dolichols (Dols), ubiquitous components of living organisms, are indispensable for cell survival. In plants, as well as other eukaryotes, Dols are crucial for post-translational protein glycosylation, aberration of which leads to fatal metabolic disorders in humans and male sterility in plants. Until now, the mechanisms underlying Dol accumulation remain elusive. In this study, we have analysed the natural variation of the accumulation of Dols and six other isoprenoids among more than 120 Arabidopsis thaliana accessions. Subsequently, by combining QTL and GWAS approaches, we have identified several candidate genes involved in the accumulation of Dols, polyprenols, plastoquinone and phytosterols. The role of two genes implicated in the accumulation of major Dols in Arabidopsis—the AT2G17570 gene encoding a long searched for cis-prenyltransferase (CPT3) and the AT1G52460 gene encoding an α/β-hydrolase—is experimentally confirmed. These data will help to generate Dol-enriched plants which might serve as a remedy for Dol-deficiency in humans.

Original languageEnglish
Pages (from-to)479-495
Number of pages17
JournalPlant, Cell and Environment
Volume45
Issue number2
DOIs
Publication statusPublished - 2022 Feb

ASJC Scopus subject areas

  • Physiology
  • Plant Science

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