相关实验视频

Updated: Jun 13, 2025

In Vitro Reconstitution of Light-harvesting Complexes of Plants and Green Algae
11:55

In Vitro Reconstitution of Light-harvesting Complexes of Plants and Green Algae

Published on: October 10, 2014

18.2K

在光采集综合体中,远红色吸收叶绿素的识别和设计原则

Keisuke Saito1, Makiko Kosugi2, Linhao Qiu3

  • 1Department of Applied Chemistry, The University of Tokyo, Tokyo, Japan; Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan.

The Journal of biological chemistry
|April 20, 2025
PubMed
概括

在Prasiola crispa中,光系统II使用一种独特的采光复合体 (Pc-frLHC),其中的叶绿素吸收远红色光. 这项研究确定了Pc-frLHC中这种不寻常的远红色吸收的特定叶绿素和结构基础.

关键词:
叶绿素的含量是多少 叶绿素的含量是多少激发能量转移的能量转移.激发性合是一种激发性合.采光天线综合体采光天线光合作用 光合作用.

更多相关视频

Isolation and Characterization of Intact Phycobilisome in Cyanobacteria06:26

Isolation and Characterization of Intact Phycobilisome in Cyanobacteria

Published on: November 10, 2021

3.9K
Purification of Active Photosystem I-Light Harvesting Complex I from Plant Tissues07:10

Purification of Active Photosystem I-Light Harvesting Complex I from Plant Tissues

Published on: February 3, 2023

1.1K

相关概念视频

The Antenna Complex01:42

The Antenna Complex

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
The Photochemical Reaction Center01:29

The Photochemical Reaction Center

Reaction centers are pigment-protein complexes that initiate energy conversion from photons to chemical entities. Therefore, photochemical reaction center is a more appropriate term that describes these complexes. The Nobel laureates Robert Emerson and William Arnold provided the first experimental evidence of photochemical reaction centers by demonstrating the participation of nearly 2,500 chlorophyll molecules for the release of just one molecule of oxygen. Despite thousands of photosynthetic...
4.1K
Photoreceptors and Plant Responses to Light02:00

Photoreceptors and Plant Responses to Light

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.
20.2K
Photosystems01:32

Photosystems

Photosystems are multiprotein complexes that form the functional units of photosynthesis in plants, algae, and cyanobacteria. They are found embedded in the membrane of tiny sac-like structures called thylakoids placed inside the chloroplast.
Functioning of Photosystems
Photosystems contain many pigment molecules, such as chlorophylls and carotenoids, arranged in a particular organization across two domains — the antenna complex and the reaction center. The main aim of the pigment...
4.8K
Photosystem II01:22

Photosystem II

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...
70.0K
Channel Rhodopsins01:11

Channel Rhodopsins

Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
2.5K