Related Experiment Video
Updated: Jan 24, 2026
09:12
Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures
Published on: August 10, 2017
7.9K
Many Facets of Dynamic Plasticity in Plants
Xiaodong Yang1, Sally A Mackenzie1
1Departments of Biology and Plant Science, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Cold Spring Harbor Perspectives in Biology
|May 30, 2019
Summary
Plants evolved resilience strategies for land, using light sensing and reproductive plasticity. Genetic specializations and epigenetic plasticity enhance their ability to adapt to environmental changes.
Area of Science:
- Plant evolutionary biology
- Environmental adaptation mechanisms
Background:
- Plants transitioned to land, facing greater environmental variability.
- Light sensing and reproductive strategies are crucial for plant survival.
- Environmental fluctuations drive genetic and evolutionary adaptations.
Purpose of the Study:
- To review advancements in understanding plant resilience and phenotypic plasticity.
- To explore mechanisms underlying plant adaptation to environmental stress.
Main Methods:
- Review of current scientific literature on plant evolution and adaptation.
- Analysis of genetic, epigenetic, and molecular mechanisms.
Main Results:
- Plant resilience involves complex strategies including light sensing and reproductive plasticity.
- Genetic specializations, protein neofunctionalization, and internal evolutionary accelerators are key.
- Nuclear-cytoplasmic interactions, transposable element activity, and epigenetic plasticity contribute to resilience phenotypes.
Conclusions:
- Plant adaptation to land involves sophisticated, multi-layered mechanisms.
- Epigenetic plasticity and transposable elements play significant roles in enhancing plant resilience.
- Understanding these mechanisms is vital for predicting plant responses to environmental change.
Related Concept Videos
01:31Plasticizers
355
Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
355
00:58Plasticity
3.0K
Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
3.0K
01:21Plastic Behavior
539
A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
539
01:14Plastic Deformations
412
It is essential to understand how structural members behave under plastic deformation when the bending stress exceeds the material's yield strength. This state of deformation permanently alters the shape of the member, in contrast to the linear elastic behavior observed before yielding. The strain at any point in the member is expressed in terms of maximum strain. Notably, the neutral axis, which coincides with the centroid during elastic bending, shifts away from the centroid under plastic...
412
01:19Plastic Deformations
442
Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their...
442
02:00Photoreceptors and Plant Responses to Light
28.4K
Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
28.4K