A Flavobacterium sp. that degrades diazinon and parathion

1973 ◽  
Vol 19 (7) ◽  
pp. 873-875 ◽  
Author(s):  
N. Sethunathan ◽  
T. Yoshida
Keyword(s):  
Carbon Dioxide ◽  
Carbon Source ◽  
Sole Carbon Source ◽  
Enrichment Culture ◽  
Culture Technique ◽  
Mineral Medium ◽  
Paddy Water

A Flavobacterium sp., isolated from paddy water by enrichment culture technique, decomposed diazinon in a mineral medium as sole carbon source. The bacterium readily hydrolyzed diazinon to 2-isopropyl-6-methyl-4-hydroxy-pyrimidine which was then converted to carbon dioxide. The bacterium also converted parathion to p-nitrophenol. The enzyme involved in the hydrolysis was constitutive.

scholarly journals Genome Sequence of Carbon Dioxide-Sequestering Serratia sp. Strain ISTD04 Isolated from Marble Mining Rocks

2016 ◽  
Vol 4 (5) ◽  
Author(s):  
Manish Kumar ◽  
Rajesh Kumar Gazara ◽  
Sandhya Verma ◽  
Madan Kumar ◽  
Praveen Kumar Verma ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Source ◽  
Sodium Bicarbonate ◽  
Genome Sequence ◽  
Sole Carbon Source

The Serratia sp. strain ISTD04 has been identified as a carbon dioxide (CO 2 )-sequestering bacterium isolated from marble mining rocks in the Umra area, Rajasthan, India. This strain grows chemolithotrophically on media that contain sodium bicarbonate (NaHCO 3 ) as the sole carbon source. Here, we report the genome sequence of 5.07 Mb Serratia sp. ISTD04.

The metabolism of p-fluorophenylacetic acid by a Pseudomonas sp. I. Isolation and identification of intermediates in degradation

1971 ◽  
Vol 17 (5) ◽  
pp. 635-644 ◽  
Author(s):  
D. B. Harper ◽  
E. R. Blakley
Keyword(s):  
Sole Carbon Source ◽  
Culture Medium ◽  
Enrichment Culture ◽  
Culture Technique ◽  
Spectroscopic Techniques ◽  
Resting Cells ◽  
Pseudomonas Sp ◽  
Isolation And Identification ◽  
Hydroxyphenylacetic Acid ◽  
Organic Fluorine

A Pseudomonas sp. capable of growing on p-fluorophenylacetic acid as sole carbon source has been isolated using the enrichment culture technique. All the organic fluorine is released into the culture medium as fluoride ion during growth. A number of fluorinated intermediates have been isolated from the culture medium when resting cells were incubated with the substrate. Using infrared, nuclear magnetic resonance, and mass spectroscopic techniques together with chemical degradative procedures, these have been identified as D(+)-monofluorosuccinic acid, trans-3-fluoro-3-hexenedioic acid, (−)-4-carboxymethyl-4-fluorobutanolide, 4-fluoro-2-hydroxyphenylacetic acid, and 4-fluoro-3-hydroxyphenylacetic acid.

scholarly journals Isolation and Characterization of Biosurfactant-producing Alcaligenes sp. YLA11 and its Diesel Degradation Potentials

2021 ◽  
Vol 9 (2) ◽  
pp. 7-12
Author(s):  
Abdulrahman Abdulhamid Arabo ◽  
Raji Arabi Bamanga ◽  
Mujiburrahman Fadilu ◽  
Musa Abubakar ◽  
Fatima Abdullahi Shehu ◽  
...  
Keyword(s):  
Carbon Source ◽  
Incubation Time ◽  
Sole Carbon Source ◽  
Enrichment Culture ◽  
Diesel Oil ◽  
Contaminated Site ◽  
Screening Methods ◽  
Bacterial Strains ◽  
Isolation And Characterization ◽  
Degrading Bacteria

This study aimed to isolate and identify biosurfactant producing and diesel alkanes degrading bacteria. For this reason, bacteria isolated from the diesel contaminated site were screened for their potential to produce biosurfactants and degrade diesel alkanes. Primary selection of diesel degraders was carried out by using conventional enrichment culture technique where 12 bacterial strains were isolated based on their ability to grow on minimal media supplemented with diesel as sole carbon source, which was followed by qualitative screening methods for potential biosurfactant production. Isolate B11 was the only candidate that shows positive signs for drop collapse, foaming, haemolytic test, oil displacement of more than 22 ± 0.05 mm, and emulsification (E24) of 14 ± 0.30%. The effect of various culture parameters (incubation time, diesel concentration, nitrogen source, pH and temperature) on biodegradation of diesel was evaluated. The optimum incubation time was confirmed to be 120 days for isolates B11, the optimum PH was confirmed as 8.0 for the isolate, Similarly, the optimum temperature was confirmed as 35oC. In addition, diesel oil was used as the sole carbon source for the isolates. The favourable diesel concentration was 12.5 % (v/v) for the isolate. The isolate has shown degradative ability towards Tridecane (C13), dodecane, 2, 6, 10-trimethyl- (C15), Tetradecane (C14), 2,6,10-Trimethyltridecane (C16), Pentadecane (C15). It degraded between 0.27% - 9.65% individual diesel oil alkanes. The strain has exhibited the potential of degrading diesel oil n-alkanes and was identified as Alcaligenes species strain B11 (MZ027604) using the 16S rRNA sequencing.

scholarly journals Glyphosate Utilization as the Source of Carbon: Isolation and Identification of new Bacteria

2011 ◽  
Vol 8 (4) ◽  
pp. 1582-1587 ◽  
Author(s):  
M. Mohsen Nourouzi ◽  
T. G. Chuah ◽  
Thomas S. Y. Choong ◽  
C. J. Lim
Keyword(s):  
Carbon Source ◽  
Stenotrophomonas Maltophilia ◽  
Sole Carbon Source ◽  
Enrichment Culture ◽  
Bacterial Isolates ◽  
Bacterial Strains ◽  
Isolation And Identification ◽  
Providencia Alcalifaciens ◽  
Mixed Bacteria ◽  
Aminomethyl Phosphonic Acid

Mixed bacteria from oil palm plantation soil (OPS) were isolated to investigate their ability to utilize glyphosate as carbon source. Results showed that approximately all of the glyphosate was converted to aminomethyl-phosphonic acid (AMPA) (99.5%). It is worthy to note that mixed bacteria were able to degrade only 2% of AMPA to further metabolites. Two bacterial strainsi.e. Stenotrophomonas maltophiliaandProvidencia alcalifacienswere obtained from enrichment culture. Bacterial isolates were cultured individually on glyphosate as a sole carbon source. It was observed that both isolates were able to convert glyphosate to AMPA.

BACTERIAL METABOLISM OFD-ASPARTATE INVOLVING RACEMIZATION AND DECARBOXYLATION

1966 ◽  
Vol 12 (4) ◽  
pp. 745-751 ◽  
Author(s):  
A. J. Markovetz ◽  
W. J. Cook ◽  
A. D. Larson
Keyword(s):  
Carbon Dioxide ◽  
Carbon Source ◽  
Sole Carbon Source ◽  
Bacterial Metabolism ◽  
Alanine Racemase ◽  
Whole Cells

A pseudomonad was isolated from soil with D-aspartate serving as sole carbon source. Whole cells and cellular extracts produced carbon dioxide and DL-alanine from D- and L-aspartate. The addition of oxamycin to cellular extracts inhibited the alanine racemase found to be present and it was ascertained that L-alanine was formed from both D- and L-aspartate, indicating that D-aspartate had been racemized to the L-isomer with subsequent decarboxylation to L-alanine.

Microbial electrosynthesis of butyrate from carbon dioxide

2015 ◽  
Vol 51 (15) ◽  
pp. 3235-3238 ◽  
Author(s):  
R. Ganigué ◽  
S. Puig ◽  
P. Batlle-Vilanova ◽  
M. D. Balaguer ◽  
J. Colprim
Keyword(s):  
Carbon Dioxide ◽  
Carbon Source ◽  
Sole Carbon Source ◽  
Microbial Electrosynthesis ◽  
First Time

This work proves for the first time the bioelectrochemical production of butyrate from CO2as a sole carbon source.

scholarly journals The Extracellular Polysaccharide of a Methylotrophic Culture

1978 ◽  
Vol 31 (3) ◽  
pp. 311 ◽  
Author(s):  
MN Huq ◽  
BJ Ralph ◽  
PAD Rickard
Keyword(s):  
Carbon Source ◽  
Sole Carbon Source ◽  
Enrichment Culture ◽  
Extracellular Polysaccharide ◽  
Molar Ratios ◽  
O 31

The constituent sugars of the extracellular polysaccharide produced by an enrichment culture, growing on methane as sole carbon source, were identified as glucose, galactose, mannose, fucose and rhamnose, in the approximate molar ratios of 1�00: o� 36: 0�19 : O� 31 : 0�16. When the culture was grown on methanol as sole carbon source, only glucose, galactose and mannose, in the approximate molar ratios of 1 �00 : 0�67 : 0�42, were identified as components of the extracellular polysaccharide.

scholarly journals Pandrug-resistant Pseudomonas sp. expresses New Delhi metallo-β-lactamase-1 and consumes ampicillin as sole carbon source

2020 ◽  
Author(s):  
Vivek Kumar Ranjan ◽  
Shriparna Mukherjee ◽  
Subarna Thakur ◽  
Krutika Gupta ◽  
Ranadhir Chakraborty
Keyword(s):  
Carbon Source ◽  
Sole Carbon Source ◽  
New Delhi ◽  
Pseudomonas Sp

scholarly journals Assessment of Voltage Influence in Carbon Dioxide Fixation Process by a Photo-Bioelectrochemical System under Photoheterotrophy

2021 ◽  
Vol 9 (3) ◽  
pp. 474
Author(s):  
Sara Díaz-Rullo Edreira ◽  
Silvia Barba ◽  
Ioanna A. Vasiliadou ◽  
Raúl Molina ◽  
Juan Antonio Melero ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Source ◽  
Future Development ◽  
Metabolic Pathways ◽  
Co2 Fixation ◽  
Oxygen Demand ◽  
Carbon Uptake ◽  
Bioelectrochemical System ◽  
Electron Sink ◽  
Soluble Carbon

Bioelectrochemical systems are a promising technology capable of reducing CO2 emissions, a renewable carbon source, using electroactive microorganisms for this purpose. Purple Phototrophic Bacteria (PPB) use their versatile metabolism to uptake external electrons from an electrode to fix CO2. In this work, the effect of the voltage (from −0.2 to −0.8 V vs. Ag/AgCl) on the metabolic CO2 fixation of a mixed culture of PPB under photoheterotrophic conditions during the oxidation of a biodegradable carbon source is demonstrated. The minimum voltage to fix CO2 was between −0.2 and −0.4 V. The Calvin–Benson–Bassham (CBB) cycle is the main electron sink at these voltages. However, lower voltages caused the decrease in the current intensity, reaching a minimum at −0.8 V (−4.75 mA). There was also a significant relationship between the soluble carbon uptake in terms of chemical oxygen demand and the electron consumption for the experiments performed at −0.6 and −0.8 V. These results indicate that the CBB cycle is not the only electron sink and some photoheterotrophic metabolic pathways are also being affected under electrochemical conditions. This behavior has not been tested before in photoheterotrophic conditions and paves the way for the future development of photobioelectrochemical systems under heterotrophic conditions.

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