Results 41 to 50 of about 209,633 (263)

H2-laser photochemical study of the temperature dependent quenching of O2(b 1[Sigma]g+) [PDF]

open access: yes, 1980
Kohse-Höinghaus K, Stuhl F. H2-laser photochemical study of the temperature dependent quenching of O2(b 1[Sigma]g+). The Journal of Chemical Physics.
F. Stuhl   +3 more
core   +1 more source

Effects of Diuron, Terbuthylazine and Isoproturon on Photochemical and Non-Photochemical Quenching of Ectocarpus siliculosus

open access: yesIOP Conference Series: Earth and Environmental Science, 2022
Abstract The influence of anthropogenic discharges on the environment is an increasing concern among environmental toxicologists. This investigation set out to analyse the impacts of selected herbicides; diuron, terbuthylazine and isoproturon on two strains of Ectocarpus siliculosus with different pollution histories, LIA4 and Es524 ...
Mohd Akmal Hashim   +6 more
openaire   +1 more source

Exogenous application of trehalose induced H2O2 production and stomatal closure in Vicia faba

open access: yesBiologia Plantarum, 2013
Trehalose can reduce stomatal aperture by a hydrogen-peroxide-dependent pathway in Vicia faba L. (cv. Daqingpi) resulting in significantly lower values of net photosynthetic rate (PN), stomatal conductance (gs), and transpiration rate (E). At 8 and 24 h,
J. Gao   +5 more
doaj   +1 more source

Photochemical and Non-Photochemical Quenching of Chlorophyll Fluorescence Induced by Hydrogen Peroxide

open access: yesZeitschrift für Naturforschung C, 1989
Abstract Chlorophyll Fluorescence. Fluorescence Quenching, Hydrogen Peroxide. Active Oxygen. Ascorbate Peroxidase Chlorophyll fluorescence quenching induced by H 20 2 in intact spinach chloroplasts was investi­gated with a modulation fluorometer which allows to distinguish between photochemical and non­ photochemical quenching ...
Christian Neubauer, Ulrich Schreiber
openaire   +1 more source

Dynamics of photosynthetic complexes in the thylakoid membranes from higher plants [PDF]

open access: yes, 2011
PhDPhotosynthetic machinery in higher plants is localised in the thylakoids enclosed in a chloroplast. To optimise and regulate the photosynthetic efficiency under different, rapidly changeable environmental conditions the dynamics of the thylakoid
Góral, Tomasz Krzysztof
core   +2 more sources

EFFECT OF BIOSTIMULANTS ON CHLOROPHYLL FLUORESCENCE PARAMETERS OF BROCCOLI (Brassica oleracea var. Italica) UNDER DROUGHT STRESS AND REWATERING

open access: yesActa Scientiarum Polonorum: Hortorum Cultus, 2018
The aim of the research was to determine the influence of biostimulants amino acids and amino acids + Ascophyllum nodosum filtrate on two broccoli cultivars ‘Agassi’ and ‘Tiburon’ and their response to soil drought.
Alina Kałużewicz   +4 more
doaj   +1 more source

Waterlogging tolerance and recovery capability screening in peanut: a comparative analysis of waterlogging effects on physiological traits and yield [PDF]

open access: yesPeerJ, 2022
Fifteen peanut varieties at the pod filling stage were exposed to waterlogging stress for 7 days, the enzyme activities and fluorescence parameters were measured after 7 days of waterlogging and drainage.
Ruier Zeng   +10 more
doaj   +2 more sources

Is PsbS the site of non-photochemical quenching in photosynthesis? [PDF]

open access: yesJournal of Experimental Botany, 2004
The PsbS protein of photosystem II functions in the regulation of photosynthetic light harvesting. Along with a low thylakoid lumen pH and the presence of de-epoxidized xanthophylls, PsbS is necessary for photoprotective thermal dissipation (qE) of excess absorbed light energy in plants, measured as non-photochemical quenching of chlorophyll ...
Krishna K, Niyogi   +3 more
openaire   +2 more sources

Rethinking the Influence of Chloroplast Movements on Non-photochemical Quenching and Photoprotection [PDF]

open access: yesPlant Physiology, 2020
Under blue light, plant chloroplasts relocate to different areas of the cell. The photoreceptor phototropin2 (phot2) mediates the chloroplast movement mechanism under excess blue light alongside the chloroplast unusual positioning1 (chup1) protein. Recently, it has been proposed that leaf transmittance changes associated with chloroplast relocation ...
Sam Wilson, Alexander V. Ruban
openaire   +2 more sources

Radiative Transfer Modeling of Phytoplankton Fluorescence Quenching Processes

open access: yesRemote Sensing, 2018
We report the first radiative transfer model that is able to simulate phytoplankton fluorescence with both photochemical and non-photochemical quenching included.
Peng-Wang Zhai   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy