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Showing 1 to 12 of 590 entries
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Multi-faceted reactivity of alkyltellurophenols towards peroxyl radicals: catalytic antioxidant versus thiol-depletion effect.

Chemistry (Weinheim an der Bergstrasse, Germany)

Amorati R, Valgimigli L, Dinér P, Bakhtiari K, Saeedi M, Engman L.
PMID: 23576474
Chemistry. 2013 Jun 03;19(23):7510-22. doi: 10.1002/chem.201300451. Epub 2013 Apr 10.

Hydroxyaryl alkyl tellurides are effective antioxidants both in organic solution and aqueous biphasic systems. They react by an unconventional mechanism with ROO(·) radicals with rate constants as high as 10(7)  M(-1)  s(-1) at 303 K, outperforming common phenols. The...

Production strategies for active heme-containing peroxidases from .

Biotechnology reports (Amsterdam, Netherlands)

Eggenreich B, Willim M, Wurm DJ, Herwig C, Spadiut O.
PMID: 28352527
Biotechnol Rep (Amst). 2016 Mar 24;10:75-83. doi: 10.1016/j.btre.2016.03.005. eCollection 2016 Jun.

Heme-containing peroxidases are frequently used in medical applications. However, these enzymes are still extracted from their native source, which leads to inadequate yields and a mixture of isoenzymes differing in glycosylation which limits subsequent enzyme applications. Thus, recombinant production...

A valuable peroxidase activity from the novel species .

Biotechnology reports (Amsterdam, Netherlands)

Casciello C, Tonin F, Berini F, Fasoli E, Marinelli F, Pollegioni L, Rosini E.
PMID: 28352563
Biotechnol Rep (Amst). 2017 Jan 03;13:49-57. doi: 10.1016/j.btre.2016.12.005. eCollection 2017 Mar.

Degradation of lignin constitutes a key step in processing biomass to become useful monomers but it remains challenging. Compared to fungi, bacteria are much less characterized with respect to their lignin metabolism, although it is reported that many soil...

Activation of plant foliar oxidases by insect feeding reduces nutritive quality of foliage for noctuid herbivores.

Journal of chemical ecology

Felton GW, Donato K, Del Vecchio RJ, Duffey SS.
PMID: 24271680
J Chem Ecol. 1989 Dec;15(12):2667-94. doi: 10.1007/BF01014725.

The foliage and fruit of the tomato plantLycopersicon esculentum contains polyphenol oxidases (PPO) and peroxidases (POD) that are compartmentally separated from orthodihydroxyphenolic substrates in situ. However, when leaf tissue is damaged by insect feeding, the enzyme and phenolic substrates...

Relationships among amino acid sequences of animal, microbial and plant peroxidases.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik

Tyson H.
PMID: 24201353
Theor Appl Genet. 1992 Aug;84(5):643-55. doi: 10.1007/BF00224164.

Relationships among 18 peroxidases amino acid sequences of animal, microbial and plant origin were examined using optimum alignment of all pairwise sequence combinations to generate a total distance matrix. The matrix was used to cluster the sequences with complete...

Comparative Proteomic Analysis of Soybean Leaves and Roots by iTRAQ Provides Insights into Response Mechanisms to Short-Term Salt Stress.

Frontiers in plant science

Ji W, Cong R, Li S, Li R, Qin Z, Li Y, Zhou X, Chen S, Li J.
PMID: 27200046
Front Plant Sci. 2016 Apr 29;7:573. doi: 10.3389/fpls.2016.00573. eCollection 2016.

Salinity severely threatens land use capability and crop yields worldwide. Understanding the mechanisms that protect soybeans from salt stress will help in the development of salt-stress tolerant leguminous plants. Here we initially analyzed the changes in malondialdehyde levels, the...

The Emerging Role of Reactive Oxygen Species Signaling during Lateral Root Development.

Plant physiology

Manzano C, Pallero-Baena M, Casimiro I, De Rybel B, Orman-Ligeza B, Van Isterdael G, Beeckman T, Draye X, Casero P, Del Pozo JC.
PMID: 24879433
Plant Physiol. 2014 Jul;165(3):1105-1119. doi: 10.1104/pp.114.238873. Epub 2014 May 30.

Overall root architecture is the combined result of primary and lateral root growth and is influenced by both intrinsic genetic programs and external signals. One of the main questions for root biologists is how plants control the number of...

Identification of B6T173 (ZmPrx35) as the prevailing peroxidase in highly insect-resistant maize (Zea mays, p84C3) kernels by activity-directed purification.

Frontiers in plant science

López-Castillo LM, López-Arciniega JA, Guerrero-Rangel A, Valdés-Rodríguez S, Brieba LG, García-Lara S, Winkler R.
PMID: 26379694
Front Plant Sci. 2015 Aug 31;6:670. doi: 10.3389/fpls.2015.00670. eCollection 2015.

Plant peroxidases (PODs) are involved in diverse physiological processes, including defense against pathogens and insects. Contrary to their biological importance, only very few plant PODs have been proven on protein level, because their low abundance makes them difficult to...

Identification and Comparative Analysis of H2O2-Scavenging Enzymes (Ascorbate Peroxidase and Glutathione Peroxidase) in Selected Plants Employing Bioinformatics Approaches.

Frontiers in plant science

Ozyigit II, Filiz E, Vatansever R, Kurtoglu KY, Koc I, Öztürk MX, Anjum NA.
PMID: 27047498
Front Plant Sci. 2016 Mar 22;7:301. doi: 10.3389/fpls.2016.00301. eCollection 2016.

Among major reactive oxygen species (ROS), hydrogen peroxide (H2O2) exhibits dual roles in plant metabolism. Low levels of H2O2 modulate many biological/physiological processes in plants; whereas, its high level can cause damage to cell structures, having severe consequences. Thus,...

Evaluation of Dye Compounds' Decolorization Capacity of Selected .

Water, air, and soil pollution

Rybczyńska K, Korniłłowicz-Kowalska T.
PMID: 26160991
Water Air Soil Pollut. 2015;226(7):228. doi: 10.1007/s11270-015-2473-8. Epub 2015 Jul 01.

The selected strains of microscopic fungi,

Experimental recreation of the evolution of lignin-degrading enzymes from the Jurassic to date.

Biotechnology for biofuels

Ayuso-Fernández I, Martínez AT, Ruiz-Dueñas FJ.
PMID: 28331543
Biotechnol Biofuels. 2017 Mar 16;10:67. doi: 10.1186/s13068-017-0744-x. eCollection 2017.

BACKGROUND: Floudas et al. (RESULTS: With this purpose, we analyzed the evolutionary pathway leading to the most efficient lignin-degrading peroxidases characterizing Polyporales species. After sequence reconstruction from 113 genes of ten sequenced genomes, the main enzyme intermediates were resurrected...

Acetylation of cell wall is required for structural integrity of the leaf surface and exerts a global impact on plant stress responses.

Frontiers in plant science

Nafisi M, Stranne M, Fimognari L, Atwell S, Martens HJ, Pedas PR, Hansen SF, Nawrath C, Scheller HV, Kliebenstein DJ, Sakuragi Y.
PMID: 26257757
Front Plant Sci. 2015 Jul 22;6:550. doi: 10.3389/fpls.2015.00550. eCollection 2015.

The epidermis on leaves protects plants from pathogen invasion and provides a waterproof barrier. It consists of a layer of cells that is surrounded by thick cell walls, which are partially impregnated by highly hydrophobic cuticular components. We show...

Showing 1 to 12 of 590 entries