Results 1 to 10 of about 51,482 (311)

Methyl Jasmonate Alleviated the Adverse Effects of Cadmium Stress in Pea (Pisum sativum L.): A Nexus of Photosystem II Activity and Dynamics of Redox Balance [PDF]

open access: yesFrontiers in Plant Science, 2022
The accumulation of cadmium (Cd) in leaves reduces photosynthetic capacity by degrading photosynthetic pigments, reducing photosystem II activity, and producing reactive oxygen species (ROS).
Hamid Manzoor   +14 more
doaj   +2 more sources

Effects of Novel Photosynthetic Inhibitor [CuL2]Br2 Complex on Photosystem II Activity in Spinach [PDF]

open access: yesCells, 2022
The effects of the novel [CuL2]Br2 complex (L = bis{4H-1,3,5-triazino [2,1-b]benzothiazole-2-amine,4-(2-imidazole)}copper(II) bromide complex) on the photosystem II (PSII) activity of PSII membranes isolated from spinach were studied.
Sergey K. Zharmukhamedov   +9 more
doaj   +2 more sources

Expression of the Arabidopsis Sigma Factor SIG5 Is Photoreceptor and Photosynthesis Controlled [PDF]

open access: yesPlants, 2014
Two collections of Arabidopsis GAL4 enhancer trap lines were screened for light-intensity dependent reporter gene activation. Line N9313 was isolated for its strong light-intensity regulation.
Marina Mellenthin   +3 more
doaj   +4 more sources

Revealing Missing Links in the Downsizing of the Photosystem II Antenna in Higher Plants Under Stress Conditions [PDF]

open access: yesAntioxidants
Chloroplast-to-nucleus ROS retrograde signaling is essential for acclimation of the photosynthetic apparatus to environmental stresses. One of the key mechanisms is the regulation of the photosystem II antenna size depending on light conditions and other
Anatoly A. Nikolaev   +4 more
doaj   +2 more sources

Advances in the Understanding of the Lifecycle of Photosystem II

open access: yesMicroorganisms, 2022
Photosystem II is a light-driven water-plastoquinone oxidoreductase present in cyanobacteria, algae and plants. It produces molecular oxygen and protons to drive ATP synthesis, fueling life on Earth.
Virginia M. Johnson, Himadri B. Pakrasi
doaj   +1 more source

Quality control of photosystem II: lipid peroxidation accelerates photoinhibition under excessive illumination. [PDF]

open access: yesPLoS ONE, 2012
Environmental stresses lower the efficiency of photosynthesis and sometimes cause irreversible damage to plant functions. When spinach thylakoids and Photosystem II membranes were illuminated with excessive visible light (100-1,000 µmol photons m(-1) s ...
Tiffanie Chan   +17 more
doaj   +1 more source

Function of Redox-Active Tyrosine in Photosystem II [PDF]

open access: yesBiophysical Journal, 2006
Water oxidation at photosystem II Mn-cluster is mediated by the redox-active tyrosine Y(Z). We calculated the redox potential (E(m)) of Y(Z) and its symmetrical counterpart Y(D), by solving the linearized Poisson-Boltzmann equation. The calculated E(m)(Y( )/Y(-)) were +926 mV/+694 mV for Y(Z)/Y(D) with the Mn-cluster in S2 state.
Ishikita, Hiroshi, Knapp, Ernst-Walter
openaire   +2 more sources

Different adaptation strategies of two citrus scion/rootstock combinations in response to drought stress [PDF]

open access: yes, 2017
Scion/rootstock interaction is important for plant development and for breeding programs. In this context, polyploid rootstocks presented several advantages, mainly in relation to biotic and abiotic stresses.
Bonatto, Diego   +6 more
core   +10 more sources

Induction of photosystem II activity in flashed leaves [PDF]

open access: yesFEBS Letters, 1972
The formation of photosynthetically functioning, normal chloroplasts in higher plants by exposure of etiolated leaves to light is well documented: morphologically [9] , physiologically [lo] , and biochemically [4, 15, 161, A net oxygen production was generally reported after several (2-4) hr of continuous illumination [ 171.
Strasser, R.J., Sironval, Cyrille
openaire   +2 more sources

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

Home - About - Disclaimer - Privacy