Related Experiment Video
Updated: Jul 2, 2025

05:21
Operation of Laboratory Photobioreactors with Online Growth Measurements and Customizable Light Regimes
Published on: October 28, 2021
2.2K
Advances in light system engineering across the phototrophic spectrum
Galen Dennis1, Matthew C Posewitz1
1Department of Chemistry, Colorado School of Mines, Golden, CO, United States.
Frontiers in Plant Science
|February 27, 2024
Summary
Researchers are improving photosynthetic efficiency in cyanobacteria, algae, and plants by exploring light reactions and novel light capture systems. Advances in one area benefit others, enhancing biomass production.
Area of Science:
- Photosynthesis research
- Plant science
- Biotechnology
Background:
- Photosynthetic engineering spans cyanobacteria, microalgae, and plants, with interconnected research fields.
- Advances in one photosynthetic system can inform and improve others due to shared fundamental mechanisms.
Purpose of the Study:
- To review recent research on the light reactions of photosynthesis in cyanobacteria, algae, and plants.
- To highlight efforts in improving photosynthetic efficiency and biomass production.
- To discuss cross-field heterologous expression and novel light capture systems.
Main Methods:
- Review of recent scientific literature on photosynthesis.
- Analysis of studies focusing on light reactions, efficiency improvements, and biomass production.
- Examination of research on heterologous expression and light-harvesting systems.
Main Results:
- Significant progress in enhancing photosynthetic efficiency and biomass production across diverse organisms.
- Successful examples of cross-field heterologous expression demonstrating translatability of techniques.
- Development of augmented and novel light capture systems.
Conclusions:
- Awareness of parallel advances across cyanobacterial, algal, and plant research is crucial for researchers.
- Techniques and experimental approaches are translatable across diverse photosynthetic organisms.
- Continued research holds potential for significant improvements in photosynthesis and biotechnology.
Related Concept Videos
Light as Energy
78.5K
The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
78.5K
Photoreceptors and Plant Responses to Light
20.3K
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.
20.3K
The Z-Scheme of Electron Transport in Photosynthesis
10.1K
The light reactions of photosynthesis assume a linear flow of electrons from water to NADP+. During this process, light energy drives the splitting of water molecules to produce oxygen. However, oxidation of water molecules is a thermodynamically unfavorable reaction and requires a strong oxidizing agent. This is accomplished by the first product of light reactions: oxidized P680 (or P680+), the most powerful oxidizing agent known in biology. The oxidized P680 that acquires an electron from the...
10.1K
Photosystem II
70.4K
The multi-protein complex photosystem II (PS II) harvests photons and transfers their energy through its bound pigments to its reaction center, and ultimately to photosystem I (PSI) through the electron transport chain. The pigments responsible for caputirng the light energy in photosystems include chlorophyll a, chlorophyll b, and carotenoids.
The pigment molecules are arranged across two photosystem domains — the antenna complex and the reaction center. The main aim of the pigment...
The pigment molecules are arranged across two photosystem domains — the antenna complex and the reaction center. The main aim of the pigment...
70.4K
The Antenna Complex
6.0K
Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency...
6.0K
Photoluminescence: Applications
395
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
395

