Abstract:
:In recent years, bioremediation is considered as an efficient method to remove the pollutants from the industrial wastewater. In this study, quantitative gene expressions (Real-time RT-PCR) of mtr gene cluster (mtrA, mtrB, mtrC, mtrD, mtrE, mtrF and omcA) in five different uranium concentrations (0.1, 0.25, 0.5, 1 and 2 mM) were performed with ICP and microscopic live cell counting analysis under anaerobic condition, by Shewanella RCRI7 as a native bacterium. The results indicated that the amount of uranium removal and live-cell counting were decreased in the higher uranium concentrations (1 and 2 mM), due to the uranium toxicity, suggesting 0.5 mM as the optimum uranium concentration for Shewanella RCRI7 resistance. The expression of mtrCED and omcA genes presented increasing trend in the lower uranium concentrations (0.1, 0.25 and 0.5 mM) and a decreasing trend in 1 and 2 mM, while mtrABF, presented an inverse pattern, proving the alternative role of mtrF for mtrC and omcA, as the substantial multiheme cytochromes in Extracellular Electron Transfer (EET) pathway. These data are a proof of these gene vital roles in the EET pathway, proposing them for genetic engineering toward EET optimization, as the certain pathway in heavy metal bioremediation process.
journal_name
Arch Microbioljournal_title
Archives of microbiologyauthors
Ghasemi R,Fatemi F,Mir-Derikvand M,Zarei Mdoi
10.1007/s00203-020-01981-1subject
Has Abstractpub_date
2020-12-01 00:00:00pages
2711-2726issue
10eissn
0302-8933issn
1432-072Xpii
10.1007/s00203-020-01981-1journal_volume
202pub_type
杂志文章abstract::The haloalkaliphilic archaeon Natronobacterium vacuolatum forms cylinder-shaped gas vesicles throughout the growth cycle when grown in media containing 15-25% NaCl. Cells cultivated in media containing 13% NaCl are, however, gas-vesicle-free. The major gas vesicle structural protein, nv-GvpA, was detected by an antise...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s002030050465
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abstract::Washed cells prepared from carbon-limited continuous cultures of Alcaligenes eutrophus synthesised poly-3-hydroxybutyrate (PHB) rapidly when supplied with glucose, DL-lactate or L-lactate. Unlike growing cultures, washed cells excreted significant amounts of pyruvate. The combined rates of PHB production (qPHB) and py...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s002030050526
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abstract::The molar percentages of guanine plus cytosine in the DNA of 51 strains of Simonsiellaceae were determined by buoyant density ultracentrifugation of cell lysates in CsCl. The DNA base ratios ranged from 41-55 mole-% guanine plus cytosine. These values fall within the range known for the Order Cytophagales, the non-fru...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00492026
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abstract::Under starvation conditions, rhodopsin-containing halobacteria show a light-accelerated death under aerobic conditions. This is attributed to photooxidative processes. Under anaerobic conditions, halobacteria die rapidly in the dark, and light prevents death. Since it has been shown by others that lightdriven ATP synt...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00425136
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00429118
更新日期:1978-09-01 00:00:00
abstract::Pyruvate kinase (ATP: pyruvate phosphotransferase (EC 2.7.1.40) was partially purified from both autotrophically and heterotrophically grown Paracoccus denitrificans. The organism grown under heterotrophic conditions contains four times more pyruvate kinase than under autotrophic conditions. The enzyme isolated from b...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00427847
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abstract::All Serratia marcescens strains (total of 33) of different sources were hemolytic including clinical strains previously classified as being nonhemolytic. DNA fragments of the two hemolysin genes hybridized with the chromosomal DNA of S. marcescens, S. liquefaciens, S. kiliensis, S. grimesii, S. proteamaculans, S. plym...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00248958
更新日期:1990-01-01 00:00:00
abstract::Fructose transport was not apparently affected in a number of Pseudomonas putida strains with deranged activity of a common glucose-gluconate uptake system, indicating the existence of an independent fructose uptake system. Fructose uptake by glucose-gluconate uptake mutants was induced by fructose and obeyed saturati...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00428362
更新日期:1975-01-01 00:00:00
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journal_title:Archives of microbiology
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更新日期:2003-04-01 00:00:00
abstract::The activities of NAD+-photoreduction and NADH/decyl-ubiquinone reductase in membrane preparations of Rhodobacter capsulatus changed to the same extent under different conditions. These results indicated that NADH:ubiquinone oxidoreductase (complex I) catalyzes the electron transport in the downhill direction (respira...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s002030050548
更新日期:1998-02-01 00:00:00
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-005-0049-5
更新日期:2006-01-01 00:00:00
abstract::An isoeugenol-degrading enzyme was purified to homogeneity from Pseudomonas putida IE27, an isoeugenol-assimilating bacterium. The purified enzyme was a 55 kDa monomer and catalyzed the initial step of isoeugenol degradation, the oxidative cleavage of the side chain double-bond of isoeugenol, to form vanillin. Another...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-007-0218-9
更新日期:2007-06-01 00:00:00
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-012-0793-2
更新日期:2012-07-01 00:00:00
abstract::ModE protein, a molybdate sensor/regulator, controls the transcription of genes coding for molybdate uptake (mod), molybdopterin synthesis (moa), molybdoenzymes nitrate reductase (nap) and dimethylsulfoxide reductase (dms), as well as fermentative dihydrogen production (fdhF and hyc) and respiratory nitrate reductase ...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-005-0039-7
更新日期:2005-12-01 00:00:00
abstract::The disaccharide sophorose induces Trichoderma to increase a soluble intracellular b-glucosidase that hydrolyses cellobiose, sophorose, and p-nitrophenyl-b-D-glucopyranoside. Simultaneously, it depresses the activity of a similar insoluble enzyme that is associated with the mycelium. Gel electrophoresis indicates that...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00425807
更新日期:1984-01-01 00:00:00
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-007-0238-5
更新日期:2007-08-01 00:00:00
abstract::Xanthobacter tagetidis grew as a chemolithotrophic autotroph on thiosulfate and other inorganic sulfur compounds, as a heterotroph on thiophene-2-carboxylic acid, acetic acid and alpha-ketoglutaric acid, and as a mixotroph on thiosulfate in combination with thiophene-2-carboxylic acid and/or acetic acid. Autotrophic g...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s002030050568
更新日期:1998-03-01 00:00:00
abstract::Dunaliella tertiolecta (marine) and D. viridis (halophilic) were each trained by serial transfer to grow at salt concentrations previously regarded as the other's domain. D. viridis then had a salt optimum at 1.0-1.5 M sodium chloride whereas that for D. tertiolecta was less than 0-2 M. Nevertheless D. tertiolecta gre...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00428592
更新日期:1977-05-13 00:00:00
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journal_title:Archives of microbiology
pub_type: 杂志文章
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abstract::Bacterial pathogens are a major threat to both humans and animals worldwide. It is crucial to understand the mechanisms of various disease processes at the molecular level. Shewanella species are widespread in the environment and some are considered as emerging opportunistic human and marine mammal pathogens. In this ...
journal_title:Archives of microbiology
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journal_title:Archives of microbiology
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00417179
更新日期:1981-03-01 00:00:00
abstract::Differences in the rumen bacterial community have been previously reported for Soay sheep housed under different day length conditions. This study extends this previous investigation to other organs of the digestive tract, as well as the analysis of ciliated protozoa and anaerobic fungi. The detectable concentrations ...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-019-01652-w
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abstract::Nitrosomonas europaea, a Gram-negative obligate chemolithoautotroph, participates in global nitrogen cycling by carrying out nitrification and derives energy for growth through oxidation of ammonia. In this work, the physiological, proteomic, and transcriptional responses of N. europaea to zinc stress were studied. Th...
journal_title:Archives of microbiology
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更新日期:2008-06-01 00:00:00
abstract::Endophytic bacteria have been reported to have symbiotic, mutualistic, commensalistic or trophobiotic relationships with various plant parts. As part of its adaptation, many endophytic organisms are known to exhibit properties with multiple beneficial effects to the plant system. Even though many bacterial genera have...
journal_title:Archives of microbiology
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abstract::A Gram-stain-negative, aerobic, non-motile and yellow-colored bacterium, strain 17J57-3 T, was isolated from soil collected in Pyeongchang city, Korea. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain 17J57-3 T formed a distinct lineage within the family Oxalobacteraceae (order Burkholderial...
journal_title:Archives of microbiology
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abstract::Gayal (Bos frontalis) of the Yunnan region is well adapted to harsh environmental conditions. Its diet consists predominantly of bamboo, reeds, and woody plants, suggesting that the rumen of this species contains many fiber-degrading bacteria and cellulases. The aim of this study was to identify and modify specific ce...
journal_title:Archives of microbiology
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journal_title:Archives of microbiology
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更新日期:1998-07-01 00:00:00
abstract::Mangrove sediment-associated bacteria are of significantly important in the field of medicine and pharmaceuticals as new promising sources of biologically active pharmacophores due to the extreme conditions, such as high salt concentration and soil anoxia. The sediment bacteria associated with Acanthus ilicifolius and...
journal_title:Archives of microbiology
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abstract::Bacillus subtilis strain 168 encodes two flavocytochromes P450, Cyp102A2 and Cyp102A3. The cyp102A3 gene is preceded by, and organized in an operon with, a gene for a transcriptional regulator, encoded by fatR. The paralogous gene, cyp102A2, is most likely transcribed as a mono-cistronic message. We show that fatR enc...
journal_title:Archives of microbiology
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更新日期:2001-12-01 00:00:00