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Optimizing photosynthesis by targeting light signaling transcriptional networks.

Rajarshi Sanyal1, Aashish Ranjan1

  • 1BRIC-National Institute of Plant Genome Research, New Delhi 110067, India.

Journal of Experimental Botany
|September 1, 2025
PubMed
Summary
This summary is machine-generated.

Light signals regulate plant development (photomorphogenesis) and photosynthesis. Key light-signaling transcription factors, like PIFs and HY5, control both processes, offering avenues to enhance plant photosynthetic efficiency.

Keywords:
ELONGATED HYPOCOTYL 5PHYTOCHROME-INTERACTING FACTORslightphotomorphogenesisphotosynthesissignaling cascadetranscription factors

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Area of Science:

  • Plant Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Light is a vital environmental signal for plants, influencing development (photomorphogenesis) and energy production (photosynthesis).
  • Photomorphogenesis involves photoreceptors and signaling cascades controlling plant development in response to light.
  • Photosynthesis converts light energy into chemical energy for plant growth and metabolism.

Purpose of the Study:

  • To review the transcriptional regulation of photosynthesis.
  • To explore the role of photomorphogenesis transcription factors in photosynthesis.
  • To discuss strategies for optimizing photosynthetic efficiency through light signaling manipulation.

Main Methods:

  • Literature review of recent studies on light signaling and photosynthesis.
  • Analysis of the involvement of photoreceptors and transcription factors (e.g., PIFs, HY5).
  • Discussion of regulatory networks and optimization strategies.

Main Results:

  • Key light-signaling transcription factors, including PHYTOCHROME-INTERACTING FACTORs (PIFs) and ELONGATED HYPOCOTYL 5 (HY5), regulate photosynthesis.
  • A crosstalk exists between photomorphogenesis and photosynthesis regulatory pathways.
  • Understanding these networks is crucial for improving photosynthetic efficiency.

Conclusions:

  • Transcription factors central to photomorphogenesis also play significant roles in regulating photosynthesis.
  • Targeting light signaling pathways offers potential for enhancing plant photosynthetic performance.
  • Further research into these regulatory networks can lead to optimized crop yields.