Results 41 to 50 of about 47,535 (285)

Radical Fluoroalkylation Reactions [PDF]

open access: yes, 2018
Recent protocols and reactions for catalytic radical perfluoroalkylations will be described. The production of perfluoroalkyl radicals (RF = CnF2n+1, n ≥ 2), which effect both addition and substitution reactions on organic substrates, can be realized ...
Barata Vallejo, Sebastian   +2 more
core   +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

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

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

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

Methane, Carbon Monoxide, and Ammonia in Brown Dwarfs and Self-Luminous Giant Planets [PDF]

open access: yes, 2014
We address disequilibrum abundances of some simple molecules in the atmospheres of solar composition brown dwarfs and self-luminous extrasolar giant planets using a kinetics-based 1D atmospheric chemistry model.
Marley, Mark S., Zahnle, Kevin J.
core   +3 more sources

Photochemical delivery of nitric oxide. [PDF]

open access: yes, 2013
There remains considerable interest in developing methods for the targeted delivery of nitric oxide and other small molecule bioregulators such as carbon monoxide to physiological targets.
Ford, Peter C
core   +1 more source

Influence of water stress on photosynthetic characteristics in barley plants under ambient and elevated CO2 concentrations

open access: yesBiologia Plantarum, 2010
We evaluated the combined effects of elevated CO2 and water availability on photosynthesis in barley. Soil and plant water content decreased with water stress, but less under elevated CO2 concentration (EC) compared with ambient CO2 concentration (AC ...
A. Robredo   +4 more
doaj   +1 more source

Enantioselective Organocatalytic Diels-Alder Trapping of Photochemically Generated Hydroxy-o-Quinodimethanes [PDF]

open access: yes, 2016
The photoenolization/Diels-Alder strategy offers straightforward access to synthetically valuable benzannulated carbocyclic products. This historical light-triggered process has never before succumbed to efforts to develop an enantioselective catalytic ...
Cuadros, Sara   +3 more
core   +2 more sources

Home - About - Disclaimer - Privacy