Testing the kinetic tradeoff between bicarbonate versus phosphoenolpyruvate affinity and glucose-6 phosphate response of phosphoenolpyruvate carboxylase from two C4 grasses [0.03%]
通过两种C4草的磷酸烯醇式丙酮酸羧化酶测试碳酸氢盐与双磷酸烯醇式丙酮酸亲和力以及葡萄糖-6磷酸反应的动力学折衷关系
Ryan L Wessendorf,Matt Stata,Asaph B Cousins
Ryan L Wessendorf
Phosphoenolpyruvate (PEP) carboxylase (PEPC) has an anaplerotic role in central plant metabolism but also initiates the carbon concentrating mechanism during C4 photosynthesis. The C4 PEPC has different binding affinities (Km) for PEP (K0.5...
Kinetics of reformation of the S0 state capable of progressing to the S1 state after the O2 release by photosystem II [0.03%]
放氧型光系统II释放O2后,重组产生能进行S0→S1转换的S0态的动力学研究
Alain Boussac,Julien Sellés,Miwa Sugiura
Alain Boussac
The active site for water oxidation in photosystem II (PSII) comprises a Mn4CaO5 cluster adjacent to a redox-active tyrosine residue (TyrZ). During the water-splitting process, the enzyme transitions through five sequential oxidation states...
Jonathan Bege,Wei Quan Pang,Bee Lynn Chew et al.
Jonathan Bege et al.
This study examined the impacts of different LED spectra on the growth of in vitro cultures of Musa acuminata cv. red banana and their biochemical profile, including the antioxidant enzymes catalase and ascorbate peroxidase, photosynthetic ...
Adaptive significance of age- and light-related variation in needle structure, photochemistry, and pigments in evergreen coniferous trees [0.03%]
常绿针叶树叶片结构、光化学和色素的年龄和光照变化对适应的意义
James Oluborode,Tamara Chadzinikolau,Magda Formela-Luboińska et al.
James Oluborode et al.
Evergreen conifers thrive in challenging environments by maintaining multiple sets of needles, optimizing photosynthesis even under harsh conditions. This study aimed to investigate the relationships between needle structure, photosynthetic...
Primary charge separation in Chloroflexus aurantiacus reaction centers at room temperature: ultrafast transient absorption measurements on QA-depleted preparations with native and chemically modified bacteriopheophytin composition [0.03%]
基于天然和化学修饰的细菌叶绿素衍生物的QA耗尽样品在室温下进行的氯基色性菌反应中心初级电荷分离的皮秒瞬态吸收研究
Alexey A Zabelin,Vyacheslav B Kovalev,Anton M Khristin et al.
Alexey A Zabelin et al.
The initial electron transfer (ET) processes in reaction centers (RCs) of Chloroflexus (Cfl.) aurantiacus were studied at 295 K using femtosecond transient absorption (TA) difference spectroscopy. Particular attention was paid to the decay ...
Elucidating light-induced changes in excitation energy transfer of photosystem I and II in whole cells of two model cyanobacteria [0.03%]
阐明两种模式蓝藻细胞中光诱导的PSI和PSII能量传递变化
Sandeep Biswas,Dariusz M Niedzwiedzki,Himadri B Pakrasi
Sandeep Biswas
Excitation energy transfer between the photochemically active protein complexes is key for photosynthetic processes. Phototrophic organisms like cyanobacteria experience subtle changes in irradiance under natural conditions. Such changes ne...
Tribute to Kenneth Sauer (1931-2022): a mentor, a role-model, and an inspiration to all in the field of photosynthesis [0.03%]
悼念肯尼斯·索尔（1931-2022）：一位光合作用领域的导师、榜样和精神领袖
Junko Yano,Jan Kern,Robert E Blankenship et al.
Junko Yano et al.
Kenneth (Ken) Sauer was a mainstay of research in photosynthesis at the University of California, Berkeley and the Lawrence Berkeley National Laboratory (LBNL) for more than 50 years. Ken will be remembered by his colleagues, and other work...
Editorial for the Special Issue 'Energy Conversion Reactions in Natural and Artificial Photosynthesis': A Tribute to Ken Sauer [0.03%]
纪念Ken Sauer的专刊“自然及人工光合作中的能量转化反应”编者按
Junko Yano,Jan Kern,Robert E Blankenship et al.
Junko Yano et al.
Optimizing photosynthetic light-harvesting under stars: simple and general antenna models [0.03%]
优化叶绿素分子天线的光捕获效率：简单通用天线模型
Samir Chitnavis,Callum Gray,Ifigeneia Rousouli et al.
Samir Chitnavis et al.
In the next 10-20 years, several observatories will aim to detect the signatures of oxygenic photosynthesis on exoplanets, though targets must be carefully selected. Most known potentially habitable exo-planets orbit cool M-dwarf stars, whi...
Insights from Ca2+→Sr2+ substitution on the mechanism of O-O bond formation in photosystem II [0.03%]
钙替代硫酸钙对光系统II中O-O键形成机制的见解
Gabriel Bury,Yulia Pushkar
Gabriel Bury
In recent years, there has been a steady interest in unraveling the intricate mechanistic details of water oxidation mechanism in photosynthesis. Despite the substantial progress made over several decades, a comprehensive understanding of t...