photosystem ii

Hexazinone 是一种三嗪家族的非选择性除草剂。它能够同光系统 II 电子传递链的 D-1 醌蛋白结合，抑制光合作用的发生。

Hexazinone 是三嗪家族的广谱除草剂。 Hexazinone 通过与光系统 II 中电子传递链的 D-1 醌蛋白结合来抑制光合作用。

Amicarbazone (BAY-MKH3586; BAY314666) is a potent PSII inhibitor, disrupting photosynthetic electron transport by binding to the Qb domain of photosystem II. This broad-spectrum herbicide is effective through foliar and root application, showcasing rapid absorption and translocation. However, its effectiveness can be compromised by common PSII inhibitor resistance. With an IC50 value indicating high potency, amicarbazone leads to chlorosis, stunted growth, tissue necrosis, and death in sensitive plants. Despite these severe effects, it exhibits good selectivity and outperforms atrazine as a herbicide, allowing for its application at lower doses compared to traditional photosynthetic inhibitors.

Tenuazonic acid is a putative nonhost-selective mycotoxin isolated from Alternaria alternate. Tenuazonic acid blocks electron transport beyond primary quinone acceptor (QA) by interacting with D1 protein and it is a broad-spectrum and effective photosyste

Antimalarial agent 17，一种兼具抗疟和除草功能的化合物，作为光系统 II 型抑制剂，在出苗后除草活性方面与市售除草剂表现出相当的效力。

Siderin作为一种Photosystem II抑制剂，有效地阻断了离体菠菜光合过程中ATP的合成及叶绿体电子传递，因此被用于植物光合作用的研究。

Cabraleadiol displays antimycobacterial activity against Mycobacterium tuberculosis, it also is weakly cytotoxic to a breast cancer (BC) cell line. Cabraleadiol inhibits photosystem II (PS II) and induces the appearance of small G band which is related wi

Encecalin and demethylencecalin are major phytotoxic compounds isolated from Helianthella quinquenervis (Hook) A Gray (Asteraceae), they inhibit photosystem II (from water to 2,5-dibromo-3-methyl-6-isopropyl-1,4 p-benzo-quinone).They retard seed germinati

Stigmatellin 是一种从粘细菌细胞质中提取的抗生素，具备针对酵母菌、丝状真菌和部分革兰氏阳性菌的抗菌活性。此外，Stigmatellin 是一种有效的光合作用电子传输抑制剂。其作用机制涉及抑制以各类糖类、多糖及柠檬酸循环中的酸为底物的RNA和蛋白质合成。Stigmatellin 在光系统II的还原侧和细胞色素b6 f复合体中具有两个抑制位点。该化合物在抗微生物及光合作用研究领域显示出潜在的应用价值。

Spirulina C-phycocyanin 是一种螺旋藻中显著的色素蛋白，是光系统 II 中光捕获藻胆体复合物的组成部分。Spirulina C-phycocyanin 具有多种作用，如抗氧化、抗炎、抗血小板、保护肝脏和降低胆固醇。其可以通过 Raman spectral measurement 进行检测。

Chlorophyll b 是一种口服活性的四吡咯衍生物和色素，可从植物、藻类等光合生物中提取。它作为氢供体，能够提升Glutathione水平，且具备抗氧化活性。在光系统 II 中，Chlorophyll b 能功能性替代叶绿素 a 参与光合作用，并减少Cisplatin(HY-17394)引起的DNA损伤、染色体不稳定性和氧化应激。Chlorophyll b 主要用于研究植物光合作用机制。