Results 91 to 100 of about 13,986,071 (365)

Photosynthesis is widely distributed among Proteobacteria as demonstrated by the phylogeny of PufLM reaction center proteins

open access: yes, 2018
Two different photosystems for performing bacteriochlorophyll-mediated photosynthetic energy conversion are employed in different bacterial phyla. Those bacteria employing a photosystem II type of photosynthetic apparatus include the phototrophic purple ...
Imhoff, J., Künzel, S., Rahn, T.
core   +1 more source

Physiological and evolutionary implications of tetrameric photosystem I in cyanobacteria

open access: yesNature Plants, 2019
Photosystem I (PSI) is present as trimeric complexes in most characterized cyanobacteria and as monomers in plants and algae. Recent reports of tetrameric PSI have raised questions regarding its structural basis, physiological role, phylogenetic ...
M. Li   +9 more
semanticscholar   +1 more source

Electrochemical Protection of Cyanobacterial Cells from Molecular Oxygen Enables Sustained PhotoH2 Production

open access: yesAngewandte Chemie International Edition, EarlyView.
Photosynthetic microorganisms can be used to perform H2 evolution driven by light. However, a crucial limitationlies in the associated generation of molecular oxygen as a by‐product of photosynthesis, which compromises the activity of the biocatalyst performing H2 production, i.e., the hydrogenase.
Panpan Wang   +6 more
wiley   +1 more source

Zinc oxide nanoparticles affect biomass accumulation and photosynthesis in Arabidopsis

open access: yesFrontiers in Plant Science, 2016
Dramatic increase in the use of nanoparticles (NPs) in a variety of applications greatly increased the likelihood of the release of NPs into the environment.
Xiaoping eWang   +8 more
doaj   +1 more source

A physiological role of cyclic electron transport around photosystem I in sustaining photosynthesis under fluctuating light in rice

open access: yesScientific Reports, 2016
Plants experience a highly variable light environment over the course of the day. To reveal the molecular mechanisms of their photosynthetic response to fluctuating light, we examined the role of two cyclic electron flows around photosystem I (CEF-PSI ...
W. Yamori, A. Makino, T. Shikanai
semanticscholar   +1 more source

Adaptive and Biochemical Responses of Dictyosphaerium sp. AM‐2024a to Environmental Conditions and Microplastic Interactions: Synergy of Biofuel Production With Pollution Mitigation

open access: yesBiotechnology and Applied Biochemistry, EarlyView.
ABSTRACT This study investigates the physiological and biochemical responses of a newly isolated microalgal strain, Dictyosphaerium sp. AM‐2024a, identified through 18S rDNA sequencing, under varying environmental conditions and microplastic (MP) interactions.
Khushboo Iqbal   +2 more
wiley   +1 more source

The effect of nicosulfuron and bentazon on photosynthetic performance of common cocklebur (Xanthium strumarium L.)

open access: yesEnvironmental and Sustainability Indicators, 2020
In order to evaluate the effects of bentazon and nicosulfuron on the photosynthetic apparatus of X. strumarium in greenhouse condition, chlorophyll a fluorescence (ChlF) method was studied at 1, 2, 3, and 4 days after herbicide treatment (DAHT). Bentazon
Sirous Hassannejad   +2 more
doaj   +1 more source

Investigation of complex formation of flavodoxin and photosystem 1 by means of direct multiparticle computer simulation [PDF]

open access: yesКомпьютерные исследования и моделирование, 2009
Kinetics of complex formation between components of the photosynthetic electron transport chain - flavodoxin and membrane complex photosystem I has been studied using computer model based on methods of multiparticle simulation and Brownian dynamics.
A. M. Abaturova   +3 more
doaj   +1 more source

Kinetic models of photosystem II should accommodate the effect of donor side quenching on variable chlorophyll a fluorescence in the microseconds time [PDF]

open access: yes, 2009
Quantitative data on laser flash-induced variable fluorescence in the 100 ns to 1 ms time range (Belyaeva et al. in Photosynth Res 98:105–119, 2008) confirming those of others (Steffen et al.
Vredenberg, W.J.
core   +3 more sources

Structure of the maize photosystem I supercomplex with light-harvesting complexes I and II

open access: yesScience, 2018
Antenna switches partners in the shade A cloudy day or an overshadowing tree causes fluctuations in light that can throw off the balance of energy flow in plant photosystems I and II (PSI and PSII). Pan et al.
Xiaowei Pan   +7 more
semanticscholar   +1 more source

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