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Related Concept Videos

Signal Transduction: Overview01:26

Signal Transduction: Overview

Cells respond to many types of information, often through receptor proteins positioned on the membrane. They respond to chemical signals, such as hormones, neurotransmitters, and other signaling molecules, initiating a series of molecular reactions to produce an appropriate response. This is called signal transduction. Cells also coordinate different responses elicited by the same signaling molecule via mediators, allowing molecular cross-talk.
Typically, signal transduction involves three...
Overview of Cell Signaling01:23

Overview of Cell Signaling

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
Overview of Cell Signaling01:23

Overview of Cell Signaling

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
What is Cell Signaling?02:03

What is Cell Signaling?

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate to respond to the environment.
What is Cell Signaling?02:03

What is Cell Signaling?

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate to respond to the environment.
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...

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Updated: Jun 2, 2026

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development
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ROS signaling: the new wave?

Ron Mittler1, Sandy Vanderauwera, Nobuhiro Suzuki

  • 1Department of Biological Sciences, College of Arts and Sciences, University of North Texas, 1155 Union Circle #305220, Denton, TX 76203, USA. ron.mittler@unt.edu

Trends in Plant Science
|April 13, 2011
PubMed
Summary
This summary is machine-generated.

Reactive oxygen species (ROS) are crucial cell signaling molecules, not just metabolic byproducts. This review explores ROS dynamics, specificity, and interactions within cellular networks.

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Last Updated: Jun 2, 2026

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Area of Science:

  • Cellular Biology
  • Biochemistry
  • Signaling Pathways

Background:

  • Reactive oxygen species (ROS) were historically viewed as harmful metabolic byproducts.
  • Emerging evidence highlights ROS as critical signaling molecules in diverse organisms.
  • Understanding ROS signaling is key to deciphering cellular communication networks.

Purpose of the Study:

  • To review the multifaceted roles of ROS as signaling molecules.
  • To address key questions regarding ROS signaling dynamics, specificity, and networking.
  • To explore intercellular ROS communication and the evolution of ROS-related gene networks.

Main Methods:

  • Literature review and synthesis of existing research on ROS signaling.
  • Analysis of studies investigating ROS dynamics and specificity.
  • Examination of research on ROS interactions with other cellular pathways.

Main Results:

  • ROS function as central players in complex cellular signaling networks.
  • ROS signaling exhibits dynamic and specific characteristics.
  • ROS participate in intercellular communication and form signaling waves.

Conclusions:

  • ROS are integral to cellular signaling across various life forms.
  • Further research into ROS signaling networks can reveal fundamental biological mechanisms.
  • The evolution of ROS-related gene networks underscores their biological significance.