Results 81 to 90 of about 10,827 (244)
Inhibition of ferredoxin: NADP+ reductase activity by the hexacyanochromate (III) ion
The small inorganic complex Cr(CN)6(3-) is a clean inhibitor of the ferredoxin: NADP+ reductase-catalysed oxidation of reduced spinach ferredoxin by NADP+. Independent spectrophotometric measurements show that millimolar additions of Cr(CN)6(3-) to mixtures of ferredoxin and ferredoxin NADP+ reductase give a marked attenuation of the difference ...
Armstrong, F, Corbett, S
openaire +4 more sources
Short Exposure to Full Moonlight Has a Long‐Term Impact on Brassica juncea Cell Activity and Growth
ABSTRACT Lunar farming, often regarded as a myth, is regularly practiced in many places around the world (e.g., India) where framers organized their agricultural activities according to moon phases. Early and recent work showed that exposure to moonlight affects the life cycle of plants, from seed germination and vegetative growth to fruit maturation ...
Govindegowda Priyanka+3 more
wiley +1 more source
Reaction of the desulfoferrodoxin from Desulfoarculus baarsii with superoxide anion. Evidence for a superoxide reductase activity [PDF]
Desulfoferrodoxin is a small protein found in sulfate-reducing bacteria that contains two independent mononuclear iron centers, one ferric and one ferrous. Expression of desulfoferrodoxin from Desulfoarculus baarsii has been reported to functionally complement a superoxide dismutase deficient Escherichia coli strain.
arxiv +1 more source
Chemotherapy remains central in the control of malaria; however, resistance has consistently thwarted these efforts. Currently, lumefantrine (LM), and piperaquine (PQ) drugs, are essential components in the mainstay artemisinin-based therapies used for ...
F. D. Bara+10 more
semanticscholar +1 more source
ABSTRACT Nitrate reduction requires reducing equivalents produced by the photosynthetic electron transport chain. Therefore, it has been suggested that nitrate assimilation provides a sink for electrons under high light conditions. We tested this hypothesis by monitoring photosynthetic efficiency and the chloroplastic glutathione redox potential (chl ...
Gal Gilad+8 more
wiley +1 more source
Pyropia yezoensis can survive the severe water loss that occurs during low tide, making it an ideal species to investigate the acclimation mechanism of intertidal seaweed to special extreme environments.
Bin Yu+18 more
doaj +1 more source
Black rot, caused by Xanthomonas campestris pv. campestris (Xcc), is the main disease of cruciferous vegetables. To characterize the resistance mechanism in the Brassica napus–Xcc pathosystem, Xcc-responsive proteins in susceptible (cv.
Md Tabibul Islam+5 more
doaj +1 more source
Hydrogen bonding to the cysteine ligand of superoxide reductase: acid--base control of the reaction intermediates [PDF]
Superoxide reductase SOR is a non-heme iron metalloenzyme that detoxifies superoxide radical in microorganisms. Its active site consists of an unusual non-heme Fe2+ center in a [His4 Cys1] square pyramidal pentacoordination, with the axial cysteine ligand proposed to be an essential feature in catalysis.
arxiv +1 more source
Moderate Temperature Reduction Changes the High‐Light Acclimation Strategy of Lettuce Plants
ABSTRACT In nature, environmental conditions are constantly changing, requiring plants to have numerous regulatory mechanisms to keep light harvesting and metabolism in balance. Here, we show that high light (HL) induces a much stronger non‐photochemical quenching (NPQ) when lettuce plants are exposed to 1500 μmol photons m−2 s−1 for 4 h at 13°C (low ...
Tapio Lempiäinen+5 more
wiley +1 more source
Background Chlorophyll breakdown is the most obvious sign of leaf senescence. The chlorophyll catabolism pathway and the associated proteins/genes have been identified in considerable detail by genetic approaches combined with stay-green phenotyping ...
Jun Tominaga+10 more
doaj +1 more source