Related Experiment Video
Updated: Nov 30, 2025
08:32
Application of Genetically Encoded Fluorescent Nitric Oxide (NO•) Probes, the geNOps, for Real-time Imaging of NO• Signals in Single Cells
Published on: March 16, 2017
13.2K
Nitric Oxide Signaling in Plants
1Department of Applied Sciences, University of the West of England, Bristol BS16 1QY, UK.
Plants (Basel, Switzerland)
|November 17, 2020
Summary
Nitric oxide (NO) plays a key role in plant cell signaling and physiological responses. This collection explores NO
Area of Science:
- Plant physiology and molecular biology
- Cell signaling mechanisms
- Biochemistry of plant stress responses
Background:
- Nitric oxide (NO) is a crucial signaling molecule in both animal and plant systems.
- The precise enzymatic pathways for NO generation in plants, particularly the role of nitrate reductase versus nitric oxide synthase-like enzymes, remain subjects of ongoing research and debate.
- NO influences diverse plant processes, including development, stress adaptation, and stomatal regulation.
Discussion:
- Investigates the controversial enzymatic sources of nitric oxide in plants.
- Highlights the downstream effects of NO, focusing on post-translational modifications of proteins.
- Explores NO's role in mediating plant developmental stages and physiological responses.
Key Insights:
- Nitrate reductase is implicated in plant nitric oxide production, though other sources are debated.
- Nitric oxide significantly impacts plant development and stress responses.
- Post-translational protein modifications are critical downstream events regulated by NO.
Outlook:
- Further research is needed to fully elucidate the enzymatic mechanisms of NO synthesis in plants.
- Understanding NO signaling pathways can lead to improved crop resilience and yield.
- Continued exploration of NO's role in plant physiology will uncover new regulatory networks.
Keywords:
S-nitrosationS-nitrosylationSNO-reductasenitrate reductasenitrationnitric oxidereactive oxygen speciesstress responsesthiol modificationMore Related Videos
Related Concept Videos
01:28Nitric Oxide Signaling Pathway
5.8K
Nitric oxide (NO), an inorganic gas, acts as a potent second messenger in most animal and plant tissues. NO diffuses out of the cells that produce it and enters the neighboring cells to generate a downstream response. NO synthase (NOS) catalyzes NO production by the deamination of the amino acid arginine. There are three isoforms of NOS. Endothelial cells have endothelial NOS (eNOS), nerve and muscle cells have neuronal NOS (nNOS), and macrophages produce inducible NOS (iNOS) upon exposure...
5.8K
01:25Cell Signaling in Plants
6.0K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
6.0K
02:12Short-distance Transport of Resources
17.1K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
17.1K
02:35Key Elements for Plant Nutrition
23.5K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
23.5K
01:21Paracrine Signaling
58.3K
Paracrine signaling allows cells to communicate with their immediate neighbors via secretion of signaling molecules. Such a signal can only trigger a response in nearby target cells because the signal molecules degrade quickly or are inactivated if not taken up. Prominent examples of paracrine signaling include nitric oxide signaling in blood vessels, synaptic signaling of neurons, the blood clotting system, tissue repair/wound healing, and local allergic skin reactions. Nitric oxide as a...
58.3K
01:32Types of Signaling Molecules
12.1K
In multicellular organisms, many molecules transmit signals between cells to pass information. These signals vary in complexity and include small peptides, nucleotides, steroids, fatty acid derivatives, and dissolved gases such as nitric oxide. Some signaling molecules diffuse through the plasma membrane to act locally between neighboring cells or travel long distances. Others remain attached to the cell surface, transmitting information to other cells only when they make contact. In some...
12.1K