Biotinylated subunit of 3-methylcrotonyl-CoA carboxylase encoding gene (AtMCCA) participating in Arabidopsis resistance to carbonate Stress by transcriptome analysis

Plant Sci. 2022 Feb:315:111130. doi: 10.1016/j.plantsci.2021.111130. Epub 2021 Nov 23.

Abstract

Soil salinization is a major factor impacting modern agricultural production, and alkaline soils contain large amounts of NaHCO3. Therefore, understanding plant tolerance to high levels of NaHCO3 is essential. In this study, a transcriptome analysis of shoot and root tissues of wild-type Arabidopsis thaliana was conducted at 0, 4, 12, 24 and 48 h after exposure to a 3 mM NaHCO3 stress. We focused on differentially expressed genes (DEGs) in roots identified in the early stages (4 h and 12 h) of the NaHCO3 stress response that were enriched in GO term, carboxylic acid metabolic process, and utilize HCO3-. Six genes were identified that exhibited similar expression patterns in both the RNA-seq and qRT-PCR data. We also characterized the phenotypic response of AtMCCA-overexpressing plants to carbonate stress, and found that the ability of AtMCCA-overexpressing plants to tolerate carbonate stress was enhanced by the addition of biotin to the growth medium.

Keywords: AtMCCA; Biotin; NaHCO(3) stress; Transcriptome.

MeSH terms

  • Acyl Coenzyme A / genetics*
  • Acyl Coenzyme A / metabolism*
  • Adaptation, Physiological / genetics*
  • Arabidopsis / genetics*
  • Arabidopsis / growth & development*
  • Carbamates / adverse effects*
  • Gene Expression Regulation, Plant
  • Genes, Plant
  • Transcriptome*

Substances

  • Acyl Coenzyme A
  • Carbamates