搜索结果: 1-15 共查到“理学 Photosynthesis”相关记录65条 . 查询时间(0.11 秒)
New study sheds light on evolution of photosynthesis
evolution of photosynthesis crop production plant
2021/8/5
A new study sheds new light on the evolution of photosynthesis in plants and algae, which could help to improve crop production.
Artificial photosynthesis has the potential to be one of the most promising sciences and technologies for solving the global environmental problems that may threaten the sustainability of humanity, ca...
New clues could help scientists harness the power of photosynthesis
scientists harness the power photosynthesis
2016/7/15
Identification of a gene needed to expand light harvesting in photosynthesis into the far-red-light spectrum provides clues to the development of oxygen-producing photosynthesis, an evolutionary advan...
Effects of Applied Electric Fields on the Quantum Yields for the Initial Electron Transfer Steps in Bacterial Photosynthesis:II.Dynamic Stark Effect
Applied Electric Fields Quantum Yields Initial Electron Transfer Steps Bacterial Photosynthesis Dynamic Stark Effect
2016/5/23
The quantum yield of the initial charge separation steps in bacterial photosynthetic reaction centers has been shown to be reduced in an applied electric field [Part I, Lao et al., J. Phys. Chem. 97 (...
Effects of Applied Electric Fields on the Quantum Yields of the Initial Electron-Transfer Steps in Bacterial Photosynthesis.1.Quantum Yield Failure
Applied Electric Fields Quantum Yields Initial Electron-Transfer Steps Bacterial Photosynthesis.1.Quantum
2016/5/23
The effect of an applied electric field has been measured for the quantum yield of formation of the P[sup +]H[sup [minus]], P[sup +]Q[sub A][sup [minus]], and [sup 3]P states of nonoriented Rb. sphaer...
Structure-Based Analysis of the Initial Electron Transfer Step in Bacterial Photosynthesis: Electric Field Induced Fluorescence Anisotropy
Fluorescence Electric fields Electron transfer Transfer reactions Anisotropy
2016/5/20
The fluorescence intensity from randomly oriented, immobilized Rb. sphaeroides reaction centers at 77 K increases in the presence of an externally applied electric field. We have proposed that this in...
Energetics of Initial Charge Separation in Bacterial Photosynthesis:The Triplet Decay Rate in Very High Magnetic Fields
Photosynthesis Electron transfer Reaction center Magnetic field effect primary electron acceptor primary electron donor quinone
2016/5/20
The triplet state of the primary electron donor is formed in bacterial reaction centers when electron transfer to the quinone is blocked. The relative quantum yield of formation and the rate of decay ...
Photosynthesis involves a very large number of photochemical and chemical transformations. This review focuses on the extraordinarily rapid transport of excitation energy in the antenna pigmentprotein...
Picosecond Spectroscopic Study of Chlorophyll-Based Models for the Primary Photochemistry of Photosynthesis
Picosecond Spectroscopic Study Chlorophyll-Based Models Primary Photochemistry Photosynthesis
2016/5/20
A series of covalently linked dimers and trimers of chlorophyllide derivatives was investigated by time-resolved absorption and fluorescence spectroscopy (3-lo4 ps). For these compounds, the freeenerg...
Pineapple genome offers insight into photosynthesis in drought-tolerant plants
Pineapple genome photosynthesis drought-tolerant plants
2015/11/12
By sequencing its genome, scientists are homing in on the genes and genetic pathways that allow the juicy pineapple plant to thrive in water-limited environments. The new findings, reported in the jou...
Photosynthesis leaves behind a unique calling card, a chemical signature that is spelled out with stable oxygen isotopes, according to a new study in Science. The findings suggest that similar isotopi...
Hot-spring bacteria reveal ability to use far-red light for photosynthesis（图）
far-red light photosynthesis
2014/8/26
20 August 2014 — Bacteria that grow in environments enriched in far-red light use a previously unknown process for harvesting energy. This discovery lays the foundation for further research aimed at i...
Team models photosynthesis and finds room for improvement（图）
Team models photosynthesis finds room for improvement
2014/3/20
The team used a computer model to simulate how adding genes from a type of photosynthetic algae known as cyanobacteria might influence photosynthetic efficiency in plants. Cyanobacteria contain small ...
Substance in photosynthesis was at work in ancient, methane-producing microbes（图）
ancient Substance in photosynthesis methane-producing microbes
2014/3/21
An international team of researchers, led by scientists at Virginia Tech and the University of California, Berkeley, has discovered that a process that turns on photosynthesis in plants likely develop...
Light and nutrient control of photosynthesis in natural phytoplankton populations from the Chukchi and Beaufort seas, Arctic Ocean
Light nutrient control of photosynthesis
2014/4/2
During the 2010–2011 ‘Impacts of Climate Change on the EcoSystems and Chemistry of the Arctic Pacific
Environment’ project, we measured photosynthetic parameters in natural Arctic phytoplankton assem...