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Updated: Jan 6, 2026

Production of Arbuscular Mycorrhizal (AM) Fungal Inoculum and Phenotypic Evaluation of Rice and AM Symbiosis Under Saline Conditions
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Rhizosphere bacteria regulate rice tillering.

Pubo Chen1, Daoxin Xie2, Ruifeng Yao1

  • 1State Key Laboratory of Chemo and Biosensing, Hunan Provincial Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Longping Agricultural College, Hunan University, Changsha 410082, China; Hunan Research Center of the Basic Discipline for Cell Signaling, Hunan University, Changsha 410082, China.

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Summary

A microbial compound, cyclo(Leu-Pro), was found to regulate rice plant architecture by mimicking plant hormones. This discovery highlights the root microbiome's importance for crop yield and sustainable agriculture.

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cyclo(Leu–Pro)rice tilleringroot microbiotastrigolactone

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Area of Science:

  • Microbiology
  • Plant Science
  • Agronomy

Background:

  • The root microbiome plays a vital role in plant development and crop yield.
  • Plant hormones, such as strigolactones, are critical regulators of plant architecture.
  • Optimizing crop architecture is essential for increasing agricultural productivity.

Purpose of the Study:

  • To investigate the role of microbial compounds in regulating plant development.
  • To identify specific microbial factors that influence rice tillering.
  • To explore the potential of microbiome-based strategies for crop improvement.

Main Methods:

  • The study identified a microbial compound, cyclo(Leu-Pro).
  • Researchers investigated its effect on rice tillering.
  • The mechanism involving strigolactone signaling was analyzed.

Main Results:

  • The microbial compound cyclo(Leu-Pro) was shown to mimic plant hormones.
  • This compound effectively regulates rice tillering through strigolactone signaling.
  • The root microbiome was confirmed to influence crop architecture.

Conclusions:

  • Microbial compounds can act as plant hormone mimics, influencing crop development.
  • The root microbiome offers a promising avenue for developing eco-friendly agricultural strategies.
  • Harnessing microbial functions can lead to optimized crop architecture and enhanced yield.