Results 41 to 50 of about 41,447 (280)

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

A kinetic model of non-photochemical quenching in cyanobacteria

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 2011
High light poses a threat to oxygenic photosynthetic organisms. Similar to eukaryotes, cyanobacteria evolved a photoprotective mechanism, non-photochemical quenching (NPQ), which dissipates excess absorbed energy as heat. An orange carotenoid protein (OCP) has been implicated as a blue-green light sensor that induces NPQ in cyanobacteria. Discovered in
Gorbunov, Maxim Y.   +4 more
openaire   +2 more sources

The moss Bryum argenteum var. muticum Brid. is well adapted to cope with high light in continental Antarctica [PDF]

open access: yes, 2012
The net photosynthetic rate (NP), chlorophyll fluorescence, carotenoid content and chlorophyll content of the cosmopolitan moss Bryum argenteum were measured in the field at Botany Bay, southern Victoria Land, continental Antarctica (77°S).
Green, T.G. Allan   +5 more
core   +3 more sources

The NADPH-Dependent thioredoxin reductase C-2-Cys peroxiredoxin redox system modulates the activity of thioredoxin x in arabidopsis chloroplasts [PDF]

open access: yes, 2018
The chloroplast redox network is composed of a complex set of thioredoxins (Trxs), reduced by ferredoxin (Fdx) via a Fdx-dependent Trx reductase (FTR), and an NADPH-dependent Trx reductase with a joint Trx domain, NTRC, which efficiently reduces 2-Cys ...
Cejudo Fernández, Francisco Javier   +2 more
core   +1 more source

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

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

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

Photosynthesis and chlorophyll fluorescence response to low sink demand of tubers and roots in Dahlia pinnata source leaves

open access: yesBiologia Plantarum, 2011
Photosynthetic rate (PN) and chlorophyll (Chl) fluorescence induction of source leaves in response to a low sink demand created by girdling the branch (GB) between the root-tuber-system and the leaves were studied in Dahlia pinnata L. cv.
S. T. Yan   +5 more
doaj   +1 more source

On the abundance of non-cometary HCN on Jupiter

open access: yes, 2010
Using one-dimensional thermochemical/photochemical kinetics and transport models, we examine the chemistry of nitrogen-bearing species in the Jovian troposphere in an attempt to explain the low observational upper limit for HCN.
Achterberg   +169 more
core   +1 more source

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