Original video: https://youtu.be/-mDvs8R-VyE
Delivered on: 11 JAN 2022
This comprehensive video explores the fascinating world of plant signaling and signal transduction, the intricate processes that allow plants to sense and respond to their environment. 🌿 We'll delve into how plants perceive various stimuli, from light and gravity to hormones and environmental cues, and how these signals trigger specific responses crucial for their survival and development.
What you'll learn:
Signal Transduction Overview: We'll define signal transduction, its importance in plant life, and how it enables plants to adapt and thrive.
Types of Signals: Explore the diverse range of signals that plants perceive, including exogenous (external) and endogenous (internal) cues, such as light, temperature, hormones, and nutrients.
Receptors and Perception: Learn about the role of receptors in sensing signals and how they initiate signal transduction pathways.
Signal Transduction Pathways: We'll examine the key steps involved in signal transduction, including receptor activation, second messenger signaling, and cellular responses such as gene expression changes and post-translational protein modification.
Plant Hormones: Discover how plant hormones act as chemical signals, regulating various processes like growth, development, and responses to stress. We'll revisit auxins, gibberellins, ethylene, cytokinins, and brassinosteroids.
Key Concepts
1. Plants Develop in Response to the Environment
2. Gibberellins and Auxin Have Diverse Effects but a Similar Mechanism of Action
3. Other Plant Hormones Have Diverse Effects on Plant Development
4. Photoreceptors Initiate Developmental Responses to Light
Factors involved in regulating plant growth and development:
1. Environmental cues (e.g., day length)
2. Receptors to sense environmental cues (e.g., photoreceptors)
3. Hormones—chemical signals
4. The plant’s genome, which encodes regulatory proteins and enzymes
Keywords: Plant physiology, signal transduction, plant signals, receptors, hormones, auxins, gibberellins, ethylene, cytokinins, brassinosteroids
Attribution 4.0 International — CC BY 4.0 - Creative Commons
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