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EXPERIMENTAL COMMUNICATIONS

Mechanism of AtFTCD-L in Root Response to Soil Compaction

  • LIU Yu-Han ,
  • CAO Qi-Jiang ,
  • ZHANG Shi-Han ,
  • LI Yi-Hui ,
  • YU Jing ,
  • TAN Xiao-Meng ,
  • LIU Xiao-Ru ,
  • YU Xian-Ling
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  • 1Key Laboratory of Urban Pest Control and Ecological Security in Liaoning, College of Life Sciences and Engineering, Shenyang University, Shen Yang 110044, China; 2College of Biological Science and Technology, Shenyang Agricultural University, Shenyang 110866, China

Received date: 2024-10-13

  Revised date: 2025-01-14

  Online published: 2025-01-22

Abstract

Plant roots respond to various abiotic stresses during their growth and development, including drought stress, heavy metals stress, salt stress, and deficiencies in essential nutrients. Among these factors, soil structure, especially soil compaction significantly affects root growth and morphology, ultimately influencing crop yield. The Golgi apparatus plays a role in root growth and responds to abiotic stress through vesicle secretion. However, the mechanisms by which the Golgi apparatus contributes to the root system's response to soil compaction remain unclear. Previous studies have demonstrated that AtFTCD-L in Arabidopsis is located on the trans-Golgi network (TGN) opposite the Golgi apparatus, and plays a role in vesicle sorting and/or secretion regulation of mucin components in the peripheral cells of the root cap. Based on previous research, this paper simulates growth experiments under conditions of high soil compaction to observes the phenotype of stable expression of the PIN-FORMED(PIN) GFP homozygous, and collects auxin-related fluorescence signals. The findings indicate that mutant root tips and root tip cells are shorter in the longitudinal direction compared to wild-type, but wider in the transverse direction, exhibiting significantly abnormal cell morphology. Analysis of fluorescent signals from PIN-related materials revealed that PIN7 was either not expressed or expressed at very low levels in mutant plants. In summary, AtFTCD-L responds to soil compaction in the roots of Arabidopsis by regulating the distribution or expression of PIN7. This study provides theoretical insights into the adaptive mechanisms of plant roots in response to abiotic stress induced by soil compaction.

Cite this article

LIU Yu-Han , CAO Qi-Jiang , ZHANG Shi-Han , LI Yi-Hui , YU Jing , TAN Xiao-Meng , LIU Xiao-Ru , YU Xian-Ling . Mechanism of AtFTCD-L in Root Response to Soil Compaction[J]. Chinese Bulletin of Botany, 0 : 1 -0 . DOI: 10.11983/CBB24154

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