Results 61 to 70 of about 842,300 (197)

Structure and binding efficiency relations of QB site inhibitors of photosynthetic reaction centres* [PDF]

open access: yesGeneral physiology and biophysics, 2015
Many herbicides employed in agriculture and also some antibiotics bind to a specific site of the reaction centre protein (RC) blocking the photosynthetic electron transport. Crystal structures showed that all these compounds bind at the secondary ubiquinone (QB) site albeit to slightly different places.
Husu Ivan   +5 more
openaire   +5 more sources

Study of the sensitivity of durum wheat varieties to herbicides inhibiting acetohydroxyacid synthase and acetyl-CoA carboxylase [PDF]

open access: yesJournal of Central European Agriculture
A study on the sensitivity of four durum wheat varieties to herbicides inhibiting acetyl-CoA carboxylase (ACC) and acetohydroxyacid synthase (AHAS) was conducted in greenhouse pot experiments.
Lyubka Koleva-Valkova   +10 more
doaj   +1 more source

The ribosome assembly GTPase EngA is involved in redox signaling in cyanobacteria

open access: yesFrontiers in Microbiology, 2023
Photosynthetic organisms must cope with environmental challenges, like those imposed by the succession of days and nights or by sudden changes in light intensities, that trigger global changes in gene expression and metabolism.
Antonio Llop   +4 more
doaj   +1 more source

Guard cell chloroplasts are essential for blue light-dependent stomatal opening in Arabidopsis.

open access: yesPLoS ONE, 2014
Blue light (BL) induces stomatal opening through the activation of H+-ATPases with subsequent ion accumulation in guard cells. In most plant species, red light (RL) enhances BL-dependent stomatal opening.
Noriyuki Suetsugu   +6 more
doaj   +1 more source

A three dimensional model of the photosynthetic membranes of Ectothiorhodospira halochloris [PDF]

open access: yes, 1986
The three dimensional organization of the complete photosynthetic apparatus of the extremely halophilic, bacteriochlorophyll b containing Ectothiorhodospira halochloris has been elaborated by several techniques of electron microscopy.
Wanner, G.   +5 more
core   +1 more source

Ascorbic Acid Mitigates Salt Stress in Tomato Seedlings by Enhancing Chlorophyll Synthesis Pathways

open access: yesAgronomy
Salt stress is a critical abiotic factor that adversely affects plant growth and productivity by impairing photosynthesis. This study explores the impact of exogenous ascorbic acid (AsA) on the photosynthetic performance of tomato seedlings (Solanum ...
Xianjun Chen   +6 more
doaj   +1 more source

Histone Acetylation Modifications Affect Tissue-Dependent Expression of Poplar Homologs of C4 Photosynthetic Enzyme Genes

open access: yesFrontiers in Plant Science, 2017
Histone modifications play important roles in regulating the expression of C4 photosynthetic genes. Given that all enzymes required for the C4 photosynthesis pathway are present in C3 plants, it has been hypothesized that this expression regulatory ...
Yuan Li   +6 more
doaj   +1 more source

Energetics of the primary electron transfer reaction revealed by ultrafast spectroscopy on modified bacterial reaction centers [PDF]

open access: yes, 1994
The modification of reaction centers from Rhodobacter sphaeroides by the introduction of pheophytins instead of bacteriopheophytins leads to interesting changes in the primary photosynthetic reaction: long-living populations of the excited electronic ...
Arlt, Thomas   +17 more
core   +1 more source

Rewiring Photosynthesis by Water‐Soluble Fullerene Derivatives for Solar‐Powered Electricity Generation

open access: yesAdvanced Science
Natural photosynthesis holds great potential to generate clean electricity from solar energy. In order to utilize this process for power generation, it is necessary to rewire photosynthetic electron transport chains (PETCs) of living photosynthetic ...
Huawei Zhu   +4 more
doaj   +1 more source

Renewable sustainable biocatalyzed electricity production in a photosynthetic algal microbial fuel cell (PAMFC) [PDF]

open access: yes, 2008
Electricity production via solar energy capturing by living higher plants and microalgae in combination with microbial fuel cells are attractive because these systems promise to generate useful energy in a renewable, sustainable, and efficient manner ...
Strik, D.P.B.T.B.   +3 more
core   +1 more source

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