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Related Concept Videos

MAPK Signaling Cascades01:07

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Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
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Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
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Related Experiment Video

Updated: Jun 29, 2025

Imaging Spatial Reorganization of a MAPK Signaling Pathway Using the Tobacco Transient Expression System
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MAPK Cascades in Plant Microbiota Structure and Functioning.

Thijs Van Gerrewey1, Hoo Sun Chung2,3

  • 1Plant Biotechnology Research Center, Department of Environmental Technology, Food Technology and Molecular Biotechnology, Ghent University Global Campus, Incheon, 21985, Republic of Korea.

Journal of Microbiology (Seoul, Korea)
|April 8, 2024
PubMed
Summary

Mitogen-activated protein kinase (MAPK) cascades regulate plant immunity and development. These signaling pathways are crucial for establishing a healthy plant holobiont by influencing microbiota assembly and function.

Keywords:
MAPKPhyllospherePlant immunityPlant microbiotaRhizosphereRoot exudate

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Area of Science:

  • Plant biology
  • Microbiology
  • Molecular signaling

Background:

  • Mitogen-activated protein kinase (MAPK) cascades are conserved signaling pathways involved in plant innate immunity and development.
  • MAPK signaling is increasingly recognized for its role in regulating the plant holobiont, impacting plant microbiota assembly and function.
  • A healthy plant microbiota is essential for optimal plant growth and health.

Purpose of the Study:

  • To review current knowledge on MAPK cascades in plants, from stimulus perception to host responses.
  • To explore the connection between MAPK signaling and plant microbiota assembly and function.
  • To discuss the role of MAPK activation in root exudation and its impact on microbiota composition.

Main Methods:

  • Literature review and synthesis of recent findings on MAPK signaling in plant-microbe interactions.
  • Analysis of the regulatory mechanisms linking MAPK cascades to plant microbiota.
  • Discussion of the role of root exudation in shaping microbiota composition.

Main Results:

  • MAPK cascades are pivotal regulators of plant holobiont assembly and function.
  • MAPK signaling influences the perception of microbial stimuli and orchestrates downstream host responses.
  • MAPK activation dynamically alters root exudation, thereby shaping plant microbiota composition.

Conclusions:

  • MAPK signaling plays a critical role in establishing and maintaining the plant holobiont relationship.
  • Understanding MAPK pathways is key to harnessing the plant microbiota for improved plant health and growth.
  • Further research employing advanced techniques is needed to fully elucidate MAPK signaling's role in the plant holobiont.