Molecular Insight into Toxicant Degradation by Microbial Communities
微生物群落有毒物质降解的分子洞察
基本信息
- 批准号:7596967
- 负责人:
- 金额:$ 2.96万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2007
- 资助国家:美国
- 起止时间:2007-07-01 至 2010-04-30
- 项目状态:已结题
- 来源:
- 关键词:AcademyAddressAerobicAffectAgricultureAlkane 1-monooxygenaseAlkanesAmericanAromatic HydrocarbonsAwarenessBacteriaBiochemicalBiochemical PathwayBiodegradationBiodiversityBiological MarkersBiological ModelsBioremediationsCatalogingCatalogsCategoriesCharacteristicsChemicalsCloningCommunitiesComplementCountryCytochrome P450DNADNA SequenceDependenceDiagnosticDioxinsDioxygenasesEcologyEnergy-Generating ResourcesEnvironmentEnzymesEquipment and supply inventoriesExposure toFacultyFamilyFingerprintFutureGene ExpressionGene FamilyGenesGenetic VariationGenomicsGoalsGrowthHabitatsHealthHeavy MetalsHumanHydrocarbonsInternationalInterventionInvestigationKnowledgeKyrgyzstanLeftLengthLibrariesMeasuresMetabolicMetagenomicsMethodologyMethodsMicrobiologyMixed Function OxygenasesModelingMolecularMolecular AnalysisMolecular BiologyMonitorNatureOceansOrganismOxygenasesParentsPathway interactionsPetroleumPharmacologic SubstancePhysiologyPlayPoisonPolar RegionsPollutionPolychlorinated BiphenylsPopulationRecoveryReportingResearchResearch InfrastructureRoleSalineSamplingScientistSiteSnowSoilSoil MicrobiologySourceStreamStressSuperfundSystemSystems BiologyTechniquesTechnologyTimeToxicogenomicsUnited StatesUniversitiesUrsidae Familyanthropogenesisbaseenvironmental enrichment for laboratory animalsexperienceforesthazardhigh throughput screeninginsightinterestmicrobialmicrobial communitymicroorganismparent grantrRNA Genesremediationresearch studytooltoxicant
项目摘要
DESCRIPTION (provided by applicant): Microorganisms have a large biochemical potential, with the capability to use natural and anthropogenic compounds as growth and energy sources. They possess unique adaptability to extreme environmental conditions and are found everywhere on the Earth. However, it is well known that the biodiversity of microorganisms remains relatively untapped with more than 99% of all bacteria in the environment uncharacterized. The alkane degrading bacteria are example model systems for studying microbial biodiversity with the added benefit of industrial relevance from both the environmental remediation and industrial biocatalysis standpoints: alkane degrading bacteria are active in the biodegradation of petroleum and their alkane oxidizing enzymes are valuable in performing chiral transformations of pharmaceutical relevance. Unique alkane degrading bacteria have been isolated from the ocean, from the Polar Regions, from soil, and from polluted sites. Many new genera and species have recently been described based on organisms isolated for the ability to degrade alkanes. The Kyrgyz Republic represents a region of the world with varied habitats ranging from high mountain deserts, permanently snow-capped mountains, heavily saline and alkaline soils, petroleum and heavy metal polluted sites left over from the soviet era, agricultural fields, mountain forests and streams, pristine valleys, and a large (100 miles long by 40 wide) mildly saline mountain lake (Lake Issyk-Kyl). These environments have not yet been systematically examined for the diversity of microorganisms that they possess. The present proposal aims to explore the microbial diversity of alkane degrading bacteria in the Kyrgyz Republic with the aim of finding and characterizing bacteria and alkane hydroxylase genes that are unique to the varied habitats in the Kyrgyz Republic. A molecular ecology approach will be taken, using a variety of methodologies to examine DNA directly extracted from the environment and from enrichment cultures. Microbial diversity will be monitored using the 16S rRNA gene as a biomarker and alkane degrading diversity will be examined using diiron and cytochrome P450 alkane monooxygenase genes as the target. The proposal brings together Kyrgyz Republic soil microbiology scientists with faculty at Rutgers University who have extensive experience in the molecular characterization of catabolic pathways. Fuel hydrocarbons such as alkanes are common contaminants in the environment. Exposure to these compounds can affect human health and well being. Knowledge of the microorganisms which are involved in the remediation of these chemicals and their molecular ecology in developing and remote countries like the Kyrgyz Republic plays a major role in determining the environmental fate of these and other toxic compounds. Public awareness among the people of the Kyrgyz Republic of the hazards of pollution will be raised through the interactive activities of this proposed research.
描述(由申请人提供):微生物具有很大的生化潜力,具有使用天然和人为化合物作为生长和能量来源的能力。它们对极端环境条件具有独特的适应性,在地球上随处可见。然而,众所周知,微生物的生物多样性仍然相对未开发,环境中超过99%的细菌尚未被表征。从环境修复和工业生物催化的角度来看,烷烃降解细菌是研究微生物生物多样性的范例模型系统,具有工业相关性:烷烃降解细菌在石油的生物降解中具有活性,它们的烷烃氧化酶在进行药物相关性的手性转化方面具有价值。独特的烷烃降解细菌已经从海洋、极地、土壤和污染场所分离出来。许多新的属和种最近被描述为基于生物分离的能力,降解烷烃。吉尔吉斯共和国代表了世界上一个拥有各种栖息地的地区,从高山沙漠,永久积雪覆盖的山脉,重盐和碱性土壤,苏联时代遗留下来的石油和重金属污染地点,农田,山林和溪流,原始山谷,以及一个大的(100英里长,40英里宽)轻度含盐的山地湖泊(伊塞克-凯尔湖)。这些环境中微生物的多样性还没有被系统地研究过。本提案旨在探索吉尔吉斯共和国烷烃降解细菌的微生物多样性,目的是发现和表征细菌和烷烃羟化酶基因,这些基因是吉尔吉斯共和国不同栖息地所特有的。将采用分子生态学方法,使用各种方法来检查直接从环境中提取的DNA和从富集培养物中提取的DNA。微生物多样性将以16S rRNA基因为生物标志物进行监测,烷烃降解多样性将以双铁和细胞色素P450烷烃单加氧酶基因为靶标进行检测。该提案将吉尔吉斯共和国土壤微生物科学家与罗格斯大学的教师聚集在一起,他们在分解代谢途径的分子表征方面拥有丰富的经验。燃料碳氢化合物如烷烃是环境中常见的污染物。接触这些化合物会影响人类的健康和福祉。在像吉尔吉斯共和国这样的发展中国家和偏远国家,对参与这些化学品修复的微生物及其分子生态学的了解在决定这些和其他有毒化合物的环境命运方面起着重要作用。将通过这项拟议研究的互动活动,提高吉尔吉斯共和国人民对污染危害的公众认识。
项目成果
期刊论文数量(0)
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{{ truncateString('GERBEN J ZYLSTRA', 18)}}的其他基金
Molecular Insight into Toxicant Degradation by Microbial Communities
微生物群落有毒物质降解的分子洞察
- 批准号:
7459914 - 财政年份:2007
- 资助金额:
$ 2.96万 - 项目类别:
Molecular Insight into Toxicant Degradation by Microbial Communities
微生物群落有毒物质降解的分子洞察
- 批准号:
7290870 - 财政年份:2007
- 资助金额:
$ 2.96万 - 项目类别:
ELECTRON TRANSFER BETWEEN TOLUENE DIOXYGENASE COMPONENTS
甲苯双加氧酶组分之间的电子转移
- 批准号:
3044120 - 财政年份:1989
- 资助金额:
$ 2.96万 - 项目类别:
ELECTRON TRANSFER BETWEEN TOLUENE DIOXYGENASE COMPONENTS
甲苯双加氧酶组分之间的电子转移
- 批准号:
3044121 - 财政年份:1988
- 资助金额:
$ 2.96万 - 项目类别:
Project 5: Molecular Insight into Dioxin Degradation by Microbes and Microbial
项目 5:微生物和微生物降解二恶英的分子洞察
- 批准号:
8564240 - 财政年份:
- 资助金额:
$ 2.96万 - 项目类别:
Project 5: Molecular Insight into Dioxin Degradation by Microbes and Microbial
项目 5:微生物和微生物降解二恶英的分子洞察
- 批准号:
8695355 - 财政年份:
- 资助金额:
$ 2.96万 - 项目类别:
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