JOURNAL ARTICLE

Tetracosanoic acids produced by 3-ketoacyl-CoA synthase 17 are required for synthesizing seed coat suberin in Arabidopsis.

  • Published In: Journal of Experimental Botany, 2024, v. 75, n. 6. P. 1767 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Kim, Ryeo Jin; Han, Sol; Kim, Hyeon Jun; Hur, Ji Hyun; Suh, Mi Chung 3 of 3

Abstract

This article focuses on the role of 3-ketoacyl CoA synthase 17 (KCS17) in the elongation of very long-chain fatty acids (VLCFAs) required for synthesizing seed coat suberin in Arabidopsis thaliana. The study demonstrates that KCS17 is predominantly expressed in the outer integument1 of seed coats and localizes to the endoplasmic reticulum, where it catalyzes the elongation of C22 to C24 VLCFAs. Knockout mutants of KCS17 showed altered suberin composition with decreased C24 and increased C22 VLCFAs, increased seed coat permeability, reduced autofluorescence, and delayed seed germination and seedling establishment under salt and osmotic stress. Additionally, KCS17 physically interacts with fatty acid elongation (FAE) core complex proteins KCR1, PAS2, and ECR, supporting its role in VLCFA biosynthesis essential for seed coat suberin formation.

Additional Information

  • Source:Journal of Experimental Botany. 2024/03, Vol. 75, Issue 6, p1767
  • Document Type:Article
  • Subject Area:Anatomy and Physiology
  • Publication Date:2024
  • ISSN:0022-0957
  • DOI:10.1093/jxb/erad381
  • Accession Number:176041329
  • Copyright Statement:Copyright of Journal of Experimental Botany is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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