Results: 6

Over-expression of dehydroascorbate reductase enhances oxidative stress tolerance in tobacco

Chang, Lingmo; Sun, Huan; Yang, Hua; Wang, Xuehua; Su, Zhizhe; Chen, Fang; Wei, Wei.

Electron. j. biotechnol; 25 (), 2017

Background: Ascorbic acid (Asc) is one of the most abundant antioxidants and it serves as a major contributor to protect plants against oxidative damage. Plants use two enzymes that participate in the metabolic recycling of Asc. One of these two enzymes is dehydroascorbate reductase (DHAR). It directly r...

Oxidorreductasas/metabolismo, Nicotiana/enzimología, Estrés Oxidativo, Plantas Modificadas Genéticamente/enzimología, Ácido Ascórbico/administración & dosificación, Antioxidantes/administración & dosificación, Nicotiana/efectos de los fármacos, Plantas Modificadas Genéticamente/efectos de los fármacos, Oxidorreductasas/genética, Ácido Ascórbico/metabolismo, Antioxidantes/metabolismo, Oxidorreductasas/aislamiento & purificación, Western Blotting, Especies Reactivas de Oxígeno, Tolerancia a la Sal, Estrés Fisiológico, Reacción en Cadena de la Polimerasa de Transcriptasa Inversa

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Over-expression of Mycobacterium neoaurum 3-ketosteroid-∆ 1-dehydrogenase in Corynebacterium crenatum for efficient bioconversion of 4-androstene-3, 17-dione to androst-1, 4-diene-3, 17-dione

Zhang, Xian; Wu, Dan; Yang, Taowei; Xu, Meijuan; Rao, Zhiming.

Electron. j. biotechnol; 19 (6), 2016

Background: 3-Ketosteroid-∆¹-dehydrogenase (KSDD), a flavoprotein enzyme, catalyzes the bioconversion of 4-androstene-3,17-dione (AD) to androst-1,4-diene-3,17-dione (ADD). To date, there has been no report about characterization of KSDD from Mycobacterium neoaurum strains, which were usually empl...

Mycobacterium/enzimología, Androstadienos/metabolismo, Corynebacterium/enzimología, Proteínas Recombinantes, Codón, Oxidorreductasas/metabolismo

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Photo-fermentational hydrogen production of Rhodobacter sp. KKU-PS1 isolated from an UASB reactor

Assawamongkholsiri, Thitirut; Reungsang, Alissara.

Electron. j. biotechnol; 18 (3), 2015

Background In this study, the detection of nifH and nifD by a polymerase chain reaction assay was used to screen the potential photosynthetic bacteria capable of producing hydrogen from five different environmental sources. Efficiency of photo-hydrogen production is highly dependent on the culture condit...

Rhodobacter/metabolismo, Rhodobacter/aislamiento & purificación, Nitrogenasa/metabolismo, Oxidorreductasas/metabolismo, Hidrógeno/metabolismo, Fermentación, Reactores Biológicos, Temperatura, Concentración de Iones de Hidrógeno, Nitrogenasa/genética, Oxidorreductasas/genética, Reacción en Cadena de la Polimerasa

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Optimization of phenoxazinone synthase production by response surface methodology and its application in Congo red decolourization

Jia, Honghua; Gao, Zhen; Ma, Yingying; Zhong, Chao; Xie, Yingchun; Zhou, Hua; Wei, Ping.

Electron. j. biotechnol; 16 (5), 2013

Background: Enzymatic decolourization has been recently proposed as a promising and eco-friendly method for treatment of synthetic dye-contaminated wastewaters. However, the processes require large quantities of enzymes, attracting significant attention in developing efficient methods for mass production...

Streptomyces antibioticus/enzimología, Oxidorreductasas/metabolismo, Lacasa/metabolismo, Escherichia coli, Rojo Congo/metabolismo, Colorantes/metabolismo, Aguas Residuales

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Enzimas cardíacas em pacientes submetidos à hemodiálise

Heart enzymes in patients submitted to hemodialysis

Santos, Maria Hercília F; Araújo, Maria Regina T; Abensur, Hugo; Noronha, Irene L; Bellingieri, Joäo Carlos; Marcondes, Marcello; Romäo Júnior, Joäo Egidio.

J. bras. nefrol; 19 (4), 1997

A presença de dor precordial durante uma sessäo de hemodiálise näo é infreqüente e sua etiologia pode estar relacionada a diversas intercorrências, dentre as quais a mais comum é a isquemia aguda do miocárdio. Para diagnóstico desta doença, tem se lançado mäo das variaçöes das chamadas enz...

Miocardio/enzimología, Creatina Quinasa/metabolismo, Transaminasas/metabolismo, Oxidorreductasas/metabolismo

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Perfil electroforético de deshidrogenasas de pentosas en vertebrados: órdenes carnívora y lagomorpha

Electrophoretic profile of pentose dehydrogenases in vertebrates: carnivorous and lagomorpha order

Nuñez, L; Leiva, E; Sans, A.

Rev. chil. cienc. méd. biol; 1 (2), 1991

Deshidrogenasas de pentosas NAD o NADP dependientes fueron aisladas de riñón, corazón, cerebro e hígado de perro y conejo. La electroforesis en geles de policrilamida de los extractos enzimáticos, reveló la presencia de varias bandas con actividad deshidrogenásica. En perro, los diferentes órgano...

Electroforesis en Gel de Poliacrilamida, NAD(P)H Deshidrogenasa (Quinona)/metabolismo, Oxidorreductasas/metabolismo, Perros/metabolismo, Conejos/metabolismo, Lagomorpha/metabolismo