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February 12, 2026Molecular Plant-Microbe InteractionsOpen Access

Transcriptional Regulation of Protein Trafficking Machinery in the Legume-Rhizobia Symbiosis

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Authors

CSChristina Stonoha‐ArtherJSJulie SunDWDong Wang

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Overview

The study shows transcriptional regulation affects nitrogen fixation in legumes, implying crucial protein targeting in symbiotic bacteria.

Key Points

  • To investigate how transcriptional regulation affects protein trafficking and nitrogen fixation in Medicago truncatula.
  • Examined nodule-specific expression of DNF1 in relation to protein trafficking.
  • Identified nodule-specific cis-elements for transcriptional control.
  • Applied CRISPR/Cas9 to mutate genes and assess impact on symbiosis.
  • DNF1 is essential for proper differentiation of intracellular bacteria in nodules.
  • Mutation of SPC catalytic subunit mimics dnf1 mutant phenotypes, causing similar defects in nitrogen fixation.
  • Cis-elements identified are critical for DNF1 regulation during symbiosis.

Cite This Study

Stonoha‐Arther et al. (2026) studied this question.

synapsesocial.com/papers/698d6d795be6419ac0d526cchttps://doi.org/10.1094/mpmi-07-25-0092-r
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