Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Stapleton, R.D. Bright, N.G. Sayler, G.S. |
| Abstract | Subsurface sediments were recovered from two aquifers contaminated with petroleum hydrocarbons in order to isolate and characterize indigenous microorganisms capable of biodegrading fuel-related compounds. These sediments had been previously studied using catabolic gene probes providing putative demonstration of significant biodegradation potential. Based on 16S rDNA sequence analysis, the isolates were phylogenetically similar to common soil microorganisms, including members of the genera Pseudomonas, Ralstonia, Burkholderia, Sphingomonas, Flavobacterium, and Bacillus. A total of 26 isolates were obtained using a vapor-plate enrichment technique with the volatile aromatic hydrocarbons toluene, ethylbenzene, p-xylene, naphthalene, and JP-4 jet fuel. JP-4, toluene, and ethylbenzene served as growth substrates for more than 80% of the isolates, while less than 10% of the organisms grew on the aromatic compounds benzene and o-xylene. Subsequent assays monitoring the evolution of 14CO2 indicated that only seven isolates were able to completely mineralize target compounds. One isolate, designated CAFB-naph-5, was able to completely mineralize the monoaromatic compounds salicylate and toluene, as well as the polyaromatic compound naphthalene. Molecular probing of the isolates showed four isolates hybridized with DNA probes targeting genes commonly associated with hydrocarbon-degrading bacteria. The isolates also demonstrated broad ability to grow in the presence of the antimicrobial agents streptomycin, tetracycline rifampicin, carbenicillin, nalidixic acid, kanamycin, and ampicillin. The results of the study demonstrate the biochemical and biodegradative capabilities of microorganisms isolated from contaminated aquifer systems and provide closure for indirect molecular monitoring of degradative potential in contaminated environments. |
| Starting Page | 211 |
| Ending Page | 221 |
| Page Count | 11 |
| File Format | |
| ISSN | 00953628 |
| Journal | Microbial Ecology |
| Volume Number | 39 |
| Issue Number | 3 |
| e-ISSN | 1432184X |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2000-04-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | Subscribed |
| Content Type | Text |
| Resource Type | Article |
| Subject | Soil Science Ecology Ecology, Evolution, Behavior and Systematics |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|