alexa Composition of soil microbial communities enriched on a mixture of aromatic hydrocarbons.
Agri and Aquaculture

Agri and Aquaculture

Journal of Aquaculture Research & Development

Author(s): Greene EA, Kay JG, Jaber K, Stehmeier LG, Voordouw G

Abstract Share this page

Abstract Soil contaminated with C5+, which contained benzene (45\%, wt/wt), dicyclopentadiene (DCPD) plus cyclopentadiene (together 20\%), toluene (6\%), styrene (3\%), xylenes (2\%), naphthalene (2\%), and smaller quantities of other compounds, served as the source for isolation of 55 genomically distinct bacteria (standards). Use of benzene as a substrate by these bacteria was most widespread (31 of 44 standards tested), followed by toluene (23 of 44), xylenes (14 of 44), styrene (10 of 44), and naphthalene (10 of 44). Master filters containing denatured genomic DNAs of all 55 standards were used to analyze the community compositions of C5+ enrichment cultures by reverse sample genome probing (RSGP). The communities enriched from three contaminated soils were similar to those enriched from three uncontaminated soils from the same site. The compositions of these communities were time dependent and showed a succession of Pseudomonas and Rhodococcus spp. before convergence on a composition dominated by Alcaligenes spp. The dominant community members detected by RSGP were capable of benzene degradation at all stages of succession. The enrichments effectively degraded all C5+ components except DCPD. Overall, degradation of individual C5+ hydrocarbons followed first-order kinetics, with the highest rates of removal for benzene.
This article was published in Appl Environ Microbiol and referenced in Journal of Aquaculture Research & Development

Relevant Expert PPTs

Relevant Speaker PPTs

  • Muhamed Fakhri Omer
    Cathodoluminescence petrography for provenance studies of the sandstones of Ora Formation (Devonian-Carboniferous), Iraqi Kurdistan Region, Northern Iraq
    PPT Version | PDF Version
  • Mustafa M Hariri
    Importance of methods’ selection in the geosciences studies and exploration
    PPT Version | PDF Version
  • Lavanya Rayapu
    EVALUATION OF ANTI-DIABETIC PROPERTIES OF THE COMPOUNDS ISOLATED FROM MARINE MACROALGAE
    PPT Version | PDF Version
  • Afsar Rahbar
    Studies of the importance of Cytomegalovirus infection in breast cancer
    PPT Version | PDF Version
  • Jim Polarine
    Case studies of human fl ora and spore contamination in clean rooms
    PPT Version | PDF Version
  • Gulay Yelken Demirel
    Challenges in parenteral formulation development studies and an evaluation from QbD point of view
    PPT Version | PDF Version
  • Jianfeng Hong
    Extractable and leachable studies of parenteral infusion and transfusion products
    PPT Version | PDF Version
  • Yosef Yarden
    Classically, the 3’untranslated region (3’UTR) is that region in eukaryotic protein-coding genes from the translation termination codon to the polyA signal. It is transcribed as an integral part of the mRNA encoded by the gene. However, there exists another kind of RNA, which consists of the 3’UTR alone, without all other elements in mRNA such as 5’UTR and coding region. The importance of independent 3’UTR RNA (referred as I3’UTR) was prompted by results of artificially introducing such RNA species into malignant mammalian cells. Since 1991, we found that the middle part of the 3’UTR of the human nuclear factor for interleukin-6 (NF-IL6) or C/EBP gene exerted tumor suppression effect in vivo. Our subsequent studies showed that transfection of C/EBP 3’UTR led to down-regulation of several genes favorable for malignancy and to up-regulation of some genes favorable for phenotypic reversion. Also, it was shown that the sequences near the termini of the C/EBP 3’UTR were important for its tumor suppression activity. Then, the C/EBP 3’UTR was found to directly inhibit the phosphorylation activity of protein kinase CPKC in SMMC-7721, a hepatocarcinoma cell line. Recently, an AU-rich region in the C/EBP 3’UTR was found also to be responsible for its tumor suppression. Recently we have also found evidence that the independent C/EBP 3’UTR RNA is actually exists in human tissues, such as fetal liver and heart, pregnant uterus, senescent fibroblasts etc. Through 1990’s to 2000’s, world scientists found several 3’UTR RNAs that functioned as artificial independent RNAs in cancer cells and resulted in tumor suppression. Interestingly, majority of genes for these RNAs have promoter-like structures in their 3’UTR regions, although the existence of their transcribed products as independent 3’UTR RNAs is still to be confirmed. Our studies indicate that the independent 3’UTR RNA is a novel non-coding RNA species whose function should be the regulation not of the expression of their original mRNA, but of some essential life activities of the cell as a whole.
    PPT Version | PDF Version
  • Arny L Blanchard
    Long-term environmental studies and stewardship in Alaska: A case study from Port Valdez
    PPT Version | PDF Version
  • Soha M Hamdy
    Biochemical studies on the effect of turmeric on breast cancer of rats
    PPT Version | PDF Version
  • Adel Nefzi
    “Adel Nefzi-Torrey-Pines-Institute-for-Molecular-Studies-USA-Diversity-Oriented-Synthesis-of-low-Molecular-Weight-Acyclic-and-Heterocyclic-Compounds-from-Resin-bound-Polyamides-Application-for-Drug-Discovery”
    PPT Version | PDF Version
  • Dalia Hussein Soliman
    “Dalia Hussein Soliman-Al-Azhar-University-Egypt-Design-synthesis-docking-and-QSAR-studies-of-novel-3-5-diaryl-pyrazole-derivatives-and-their-evaluation-as-antioxidants-and-as-Immunomodulators-inhibitors-of-TNF-α-IL-2-IL-6”
    PPT Version | PDF Version
  • Xiaomei Lu
    Ocean subsurface studies with the CALIPSO spaceborne lidar
    PPT Version | PDF Version
  • S Catherine Alexander
    Immunotoxicity of industrial effluents in fin fish: An alternative animal model for immunotoxicological studies
    PPT Version | PDF Version
  • Ferdinand N Mbagwu
    Ethnomedical studies of plants used for treatment of diseases in eastern part of Nigeria
    PPT Version | PDF Version

Recommended Conferences

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords