Arabidopsis ecotype Ct-1, with its altered nitrate sensing ability, exhibits enhanced growth under low nitrate conditions in comparison to Col-0

Seokjin Lee, Quang Tri Le, Seonyoung Yang, Kwang Yeon Hwang, Hojoung Lee

Research output: Contribution to journalArticlepeer-review

Abstract

To address the urgent need for sustainable solutions to the increased use of nitrogen fertilizers in agriculture, it is imperative to acquire an in-depth comprehension of the intricate interplay between plants and nitrogen. In this context, our research aimed to elucidate the molecular mechanism behind NO3- sensing/signaling in plants, which can enhance nitrogen utilization efficiency. Previous reports have revealed that the density and quantity of root hairs exhibit responsive behavior to varying levels of NO3-, while the precise molecular mechanisms governing these changes remain elusive. To further investigate this phenomenon, we specifically selected the Ct-1 ecotype, which manifested a greater abundance of root hairs compared to the Col-0 ecotype under conditions of low NO3-. Our investigations unveiled that the dissimilarities in the amino acid sequence of NRT1.1, a transceptor responsible for regulating nitrate signaling and transport, accounted for the observed variation in root hair numbers. These results suggest that NRT1.1 represents a promising target for gene editing technology, offering potential applications in enhancing the efficiency of nitrogen utilization in agricultural crops.

Original languageEnglish
Article number111827
JournalPlant Science
Volume336
DOIs
Publication statusPublished - 2023 Nov

Bibliographical note

Funding Information:
This work was supported by a grant to Hojoung Lee from the National Research Foundation of Korea in 2019 (grant NRF-2019R1A2C1088417 ).

Publisher Copyright:
© 2023 Elsevier B.V.

Keywords

  • Arabidopsis thaliana
  • Col-0
  • Ct-1
  • Ecotypes
  • Nitrate
  • NRT1.1

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Genetics
  • Plant Science

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