scholarly journals Kinetics of batch microbial degradation of phenols by indigenous Pseudomonas fluorescence

2008 ◽  
Vol 5 (2) ◽  
pp. 223-232 ◽  
Author(s):  
S. E. Agarry ◽  
B. O. Solomon
Keyword(s):  
Microbial Degradation ◽  
Kinetics Of

Microbial degradation characteristics and kinetics of novel pyrimidynyloxybenzoic herbicide ZJ0273 by a newly isolated Bacillus sp. CY

2013 ◽  
Vol 20 (12) ◽  
pp. 8831-8838 ◽  
Author(s):  
Zhiqiang Cai ◽  
Sai Shi ◽  
Shanshan Li ◽  
Baike Yang ◽  
Qiaoli Chen ◽  
...  
Keyword(s):  
Microbial Degradation ◽  
Bacillus Sp ◽  
Kinetics Of

Kinetics of microbial degradation of vascular plant material in two wetland ecosystems

Oecologia ◽  
1989 ◽  
Vol 79 (2) ◽  
pp. 158-167 ◽  
Author(s):  
Mary Ann Moran ◽  
Ronald Benner ◽  
Robert E. Hodson
Keyword(s):  
Microbial Degradation ◽  
Plant Material ◽  
Vascular Plant ◽  
Wetland Ecosystems ◽  
Kinetics Of

scholarly journals Biodegradation of Allethrin by a Novel Fungus Fusarium proliferatum Strain CF2, Isolated from Contaminated Soils

2020 ◽  
Vol 8 (4) ◽  
pp. 593 ◽  
Author(s):  
Pankaj Bhatt ◽  
Wenping Zhang ◽  
Ziqiu Lin ◽  
Shimei Pang ◽  
Yaohua Huang ◽  
...  
Keyword(s):  
Microbial Degradation ◽  
Contaminated Soils ◽  
Degradation Kinetics ◽  
Fusarium Proliferatum ◽  
Minimal Salt Medium ◽  
Optimum Conditions ◽  
Uninoculated Control ◽  
High Concentrations ◽  
Continuous Use ◽  
Kinetics Of

Continuous use of allethrin has resulted in heavy environmental contamination and has raised public concern about its impact on human health, yet little is known about the kinetics and microbial degradation of this pesticide. This study reported the degradation kinetics in a novel fungal strain, Fusarium proliferatum CF2, isolated from contaminated agricultural fields. Strain CF2 utilized 50 mg·L−1 of allethrin as the sole carbon source for growth in minimal salt medium and tolerated high concentrations of allethrin of up to 1000 mg·L−1. The optimum degradation conditions for strain CF2 were determined to be a temperature of 26 °C and pH 6.0 using response surface methodology. Under optimum conditions, strain CF2 completely degraded allethrin within 144 hours. The degradation kinetics of allethrin followed first order reaction kinetics. Kinetics analysis showed that its half-life was substantially reduced by 507.1 hours, as compared to the uninoculated control. This study provides new insights into the microbial degradation of allethrin with fungal F. proliferatum CF2.

Microbial degradation kinetics of solid alkane dissolved in nondegradable oil phase

1999 ◽  
Vol 3 (1) ◽  
pp. 71-78 ◽  
Author(s):  
Dong Hyuk Choi ◽  
Katsutoshi Hori ◽  
Yasunori Tanji ◽  
Hajime Unno
Keyword(s):  
Microbial Degradation ◽  
Degradation Kinetics ◽  
Kinetics Of

scholarly journals Biochemistry of Microbial Degradation of Hexachlorocyclohexane and Prospects for Bioremediation

2010 ◽  
Vol 74 (1) ◽  
pp. 58-80 ◽  
Author(s):  
Rup Lal ◽  
Gunjan Pandey ◽  
Pooja Sharma ◽  
Kirti Kumari ◽  
Shweta Malhotra ◽  
...  
Keyword(s):  
Structure Function ◽  
20Th Century ◽  
Microbial Degradation ◽  
Field Trials ◽  
Aerobic Degradation ◽  
Residence Times ◽  
Sequence Structure ◽  
Major Pathway ◽  
Hch Isomers ◽  
Kinetics Of

SUMMARY Lindane, the γ-isomer of hexachlorocyclohexane (HCH), is a potent insecticide. Purified lindane or unpurified mixtures of this and α-, β-, and δ-isomers of HCH were widely used as commercial insecticides in the last half of the 20th century. Large dumps of unused HCH isomers now constitute a major hazard because of their long residence times in soil and high nontarget toxicities. The major pathway for the aerobic degradation of HCH isomers in soil is the Lin pathway, and variants of this pathway will degrade all four of the HCH isomers although only slowly. Sequence differences in the primary LinA and LinB enzymes in the pathway play a key role in determining their ability to degrade the different isomers. LinA is a dehydrochlorinase, but little is known of its biochemistry. LinB is a hydrolytic dechlorinase that has been heterologously expressed and crystallized, and there is some understanding of the sequence-structure-function relationships underlying its substrate specificity and kinetics, although there are also some significant anomalies. The kinetics of some LinB variants are reported to be slow even for their preferred isomers. It is important to develop a better understanding of the biochemistries of the LinA and LinB variants and to use that knowledge to build better variants, because field trials of some bioremediation strategies based on the Lin pathway have yielded promising results but would not yet achieve economic levels of remediation.

Sign in / Sign up

Export Citation Format

Share Document