scholarly journals Degradation and conversion of toxic compounds into useful bioplastics by Cupriavidus sp. CY-1: relative expression of the PhaC gene under phenol and nitrogen stress

2015 ◽  
Vol 17 (9) ◽  
pp. 4560-4569 ◽  
Author(s):  
M. Venkateswar Reddy ◽  
Yuka Yajima ◽  
Yasuteru Mawatari ◽  
Tamotsu Hoshino ◽  
Young-Cheol Chang
Keyword(s):  
Aromatic Hydrocarbons ◽  
Nitrogen Stress ◽  
Toxic Compounds ◽  
Relative Expression ◽  
Phac Gene ◽  
Different Types ◽  
Poly Aromatic Hydrocarbons

In this study different types of toxic compounds,i.e., alkylphenols, mono and poly-aromatic hydrocarbons were converted into polyhydroxybutyrate (PHB) using the isolated bacteriaCupriavidussp. CY-1.

Morphology of Cell Injury: An Approach to the EDIT Programme by the Use of Tobacco Pollen Tubes

2002 ◽  
Vol 30 (3) ◽  
pp. 323-329 ◽  
Author(s):  
Udo Kristen ◽  
Natalie Bischoff ◽  
Saskia Lisboa ◽  
Enno Schirmer ◽  
Sören Witt ◽  
...  
Keyword(s):  
Tip Growth ◽  
Cell Injury ◽  
Cytosolic Calcium ◽  
Pollen Tubes ◽  
In Vitro Cytotoxicity ◽  
Toxic Compounds ◽  
In Vitro System ◽  
Tobacco Pollen ◽  
Different Types

Tobacco pollen tubes were used as a standard in vitro system to investigate cell growth aberrations caused by some of the Multicentre Evaluation of In Vitro Cytotoxicity (MEIC) programme chemicals and other toxic compounds. Changes in cytoskeletal pattern were observed in the tube cells by using tubu-lin immunofluorescence and rhodamin–phalloidin fluorescence for the localisation of microtubules and actin filaments, respectively. Four different types of cell malformation were found: screw-like growth, isodiametric tip swelling, hook formation, and pollen grain enlargement. We suggest that these malformations resulted from an interference by the chemicals with the cytosolic calcium gradient which controls tip growth and the orientation of the pollen tube. The results may contribute to a general understanding of toxicity-based cell malformations.

scholarly journals An Environmental Friendly Perspective of Microbial Degradation

2018 ◽  
Vol 3 (2) ◽  
Keyword(s):  
Heavy Metals ◽  
Polychlorinated Biphenyls ◽  
Microbial Degradation ◽  
Aromatic Hydrocarbons ◽  
Environmental Conditions ◽  
Cost Effective ◽  
Environmental Friendly ◽  
Naturally Occurring ◽  
Degradation Of Pollutants ◽  
Poly Aromatic Hydrocarbons

In the recent years attempt to find cost-effective and ecological ways to deal with noxious waste led mankind to focus on the use of microbes for the degradation of pollutants. These environmental friendly remediation methods employs the microbial naturally occurring catabolic capabilities to alter, vitiate or accrue a large number of pollutants including poly aromatic hydrocarbons, polychlorinated biphenyls, radio nuclides ,heavy metals etc. High-through put analyses of environmentally relevant microbes provides an insight of their major degradative pathways as well as their competence to acclimate to altering environmental conditions.

scholarly journals Carbon and Hydrogen Stable Isotope Fractionation during Aerobic Bacterial Degradation of Aromatic Hydrocarbons

2002 ◽  
Vol 68 (10) ◽  
pp. 5191-5194 ◽  
Author(s):  
Barbara Morasch ◽  
Hans H. Richnow ◽  
Bernhard Schink ◽  
Andrea Vieth ◽  
Rainer U. Meckenstock
Keyword(s):  
Stable Isotope ◽  
Pseudomonas Putida ◽  
Aromatic Hydrocarbons ◽  
Isotope Fractionation ◽  
Bacterial Degradation ◽  
Aerobic Degradation ◽  
Bacterial Strains ◽  
Stable Isotope Fractionation ◽  
Substrate Degradation ◽  
Different Types

ABSTRACT 13C/12C and D/H stable isotope fractionation during aerobic degradation was determined for Pseudomonas putida strain mt-2, Pseudomonas putida strain F1, Ralstonia pickettii strain PKO1, and Pseudomonas putida strain NCIB 9816 grown with toluene, xylenes, and naphthalene. Different types of initial reactions used by the respective bacterial strains could be linked with certain extents of stable isotope fractionation during substrate degradation.

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