Exploring triclosan degradation potential of Citrobacter freundii KS2003

2021 ◽  
Author(s):  
R. Kumari ◽  
S. Ghosh Sachan ◽  
A. Sachan
Keyword(s):  
Citrobacter Freundii

Detoxification of zearalenone produced by Fusarium graminearum by purified tannase from Citrobacter freundii

2015 ◽  
Vol 2 (1) ◽  
pp. 001-008
Author(s):  
Nsayef Muslim Sahira ◽  
◽  
N. Mahammed Alaa ◽  
M.S. AL_Kadmy Israa ◽  
Nsayef Muslim Sraa
Keyword(s):  
Fusarium Graminearum ◽  
Citrobacter Freundii

Exemplar Abstract for Citrobacter freundii (Braak 1928) Werkman and Gillen 1932 (Approved Lists 1980).

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
Dorothea Taylor ◽  
George M Garrity
Keyword(s):  
Citrobacter Freundii

Nomenclature Abstract for Citrobacter freundii (Braak 1928) Werkman and Gillen 1932 (Approved Lists 1980).

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
Sarah Wigley ◽  
George M Garrity ◽  
Dorothea Taylor
Keyword(s):  
Citrobacter Freundii

Increase in Thermal Stability of Phytase from Citrobacter freundii by Site-Directed Saturation Mutagenesis

2018 ◽  
Vol 34 (6) ◽  
pp. 33-42
Author(s):  
T.L. Gordeeva ◽  
◽  
L.N. Borshchevskaya ◽  
A.N. Kalinina ◽  
S.P. Sineoky ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Saturation Mutagenesis ◽  
Citrobacter Freundii ◽  
Thermal Stability Of

scholarly journals Biodegradation and metabolic pathway of fenvalerate by Citrobacter freundii CD-9

AMB Express ◽  
2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jie Tang ◽  
Dan Lei ◽  
Min Wu ◽  
Qiong Hu ◽  
Qing Zhang
Keyword(s):  
Environmental Pollution ◽  
Environmental Remediation ◽  
High Efficiency ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Citrobacter Freundii ◽  
16S Rrna Sequence ◽  
Intracellular Enzyme ◽  
Pyrethroid Insecticides ◽  
Spectrometry Analysis

Abstract Fenvalerate is a pyrethroid insecticide with rapid action, strong targeting, broad spectrum, and high efficiency. However, continued use of fenvalerate has resulted in its widespread presence as a pollutant in surface streams and soils, causing serious environmental pollution. Pesticide residues in the soil are closely related to food safety, yet little is known regarding the kinetics and metabolic behaviors of fenvalerate. In this study, a fenvalerate-degrading microbial strain, CD-9, isolated from factory sludge, was identified as Citrobacter freundii based on morphological, physio-biochemical, and 16S rRNA sequence analysis. Response surface methodology analysis showed that the optimum conditions for fenvalerate degradation by CD-9 were pH 6.3, substrate concentration 77 mg/L, and inoculum amount 6% (v/v). Under these conditions, approximately 88% of fenvalerate present was degraded within 72 h of culture. Based on high-performance liquid chromatography and gas chromatography-mass spectrometry analysis, ten metabolites were confirmed after the degradation of fenvalerate by strain CD-9. Among them, o-phthalaldehyde is a new metabolite for fenvalerate degradation. Based on the identified metabolites, a possible degradation pathway of fenvalerate by C. freundii CD-9 was proposed. Furthermore, the enzyme localization method was used to study CD-9 bacteria and determine that its degrading enzyme is an intracellular enzyme. The degradation rate of fenvalerate by a crude enzyme solution for over 30 min was 73.87%. These results showed that strain CD-9 may be a suitable organism to eliminate environmental pollution by pyrethroid insecticides and provide a future reference for the preparation of microbial degradation agents and environmental remediation.

Mutations in the gyrA and parC genes associated with fluoroquinolone resistance in clinical isolates of Citrobacter freundii

2006 ◽  
Vol 154 (2) ◽  
pp. 409-414 ◽  
Author(s):  
Yoshinori Nishino ◽  
Takashi Deguchi ◽  
Mitsuru Yasuda ◽  
Takeshi Kawamura ◽  
Masahiro Nakano ◽  
...  
Keyword(s):  
Clinical Isolates ◽  
Fluoroquinolone Resistance ◽  
Citrobacter Freundii

Cloning and Sequencing of the Gene for the Lactose Carrier of Citrobacter freundii

1994 ◽  
Vol 203 (3) ◽  
pp. 1882-1888 ◽  
Author(s):  
J.I. Lee ◽  
N. Okazaki ◽  
T. Tsuchiya ◽  
T.H. Wilson
Keyword(s):  
Citrobacter Freundii ◽  
Cloning And Sequencing

Carriage of qnrA1 and qnrB2, blaCTX-M15, and complex class 1 integron in a clinical multiresistant Citrobacter freundii isolate

2010 ◽  
Vol 67 (2) ◽  
pp. 188-190 ◽  
Author(s):  
Sónia Ferreira ◽  
Ana Paradela ◽  
Jorge Velez ◽  
Elmano Ramalheira ◽  
Timothy R. Walsh ◽  
...  
Keyword(s):  
Citrobacter Freundii ◽  
Complex Class ◽  
Class 1 Integron ◽  
Class 1
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