秘鲁亚马逊康多尔坎基受石油泄漏影响地区具有生物修复潜力的细菌分离和细菌群落分析。

IF 0.6 Q3 MULTIDISCIPLINARY SCIENCES
Rosita T. Castillo Rogel, Francis J. More Calero, Melitza Cornejo La Torre, Jaime N. Fernández Ponce, Eric L. Mialhe Matonnier
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En este trabajo se aislaron e identificaron cepas bacterianas con potencial biorremediador en medios de cultivo suplementados con petroleo, a partir de una zona contaminada por derrame de petroleo en la Amazonia peruana; tambien se realizo la caracterizacion de la comunidad bacteriana por analisis independiente de cultivo mediante secuenciamiento de proxima generacion dirigido al gen ARNr 16S. Las cepas bacterianas aisladas se identificaron como: Acinetobacter rudis, Enterobacter cloacae, Klebsiella oxytoca, Morganella morganii, Proteus hauseri, Proteus terrae, Proteus vulgaris (2) , Pseudomonas koreensis, Pseudomonas moraviensis, Pseudomonas prosekii y Serratia marcescens (2). 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The culture-independent analysis detected the Proteobacteria and Bacteroidetes phylum as predominant in water and soil contaminated with hydrocarbons; Likewise, the taxonomic allocation at the family level highlighted the groups Flavobacteriaceae , Moraxellaceae , Verrucomicrobia and Acetobacteraceae as the most abundant, in addition to the genera Acinetobacter , Flavobacterium and Geobacter present in both samples. In this way, the main groups involved in the degradation of petroleum hydrocarbons were determined using culture-dependent and independent techniques. 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引用次数: 2

摘要

由于目前的高能源需求,石油及其衍生物的使用有所增加;这导致了对生态系统产生负面影响的燃料泄漏等环境事故的增加。在这些环境中,存在能够在这些条件下生存并利用石油碳氢化合物作为碳和能源的微生物;以生态友好和成本效益高的方式在生物修复中提出。在这项工作中,从秘鲁亚马逊地区受石油泄漏污染的地区分离并鉴定了在补充石油的培养基中具有生物修复潜力的细菌菌株;还通过针对16S mRNA基因的下一代测序,通过独立培养分析对细菌群落进行了表征。分离的细菌菌株被鉴定为:不动杆菌Rudis、阴沟肠杆菌、尖克雷伯菌、Morganella Morganii、Proteus Hauseri、Proteus Terrae、Proteus vulgaris(2)、Koreensis假单胞菌、Moraviensis假单胞菌、Prosekii假单胞菌和粘质沙雷氏菌(2)。在独立培养分析中,他们发现在受碳氢化合物污染的水和土壤中,蛋白质细菌和类杆菌占主导地位;同样,家族一级的分类归属强调了黄杆菌科、莫拉菌科、疣菌科和醋杆菌科的种类最丰富,以及这两个样本中存在的不动杆菌、黄杆菌和土杆菌属。通过这种方式,利用依赖和独立的培养技术确定了参与碳氢化合物降解的主要群体。关键词:水,细菌,碳氢化合物,甲烷,土壤。摘要:当前的高能源需求加剧了石油及其衍生物的使用,但随之而来的是负面影响生态系统的燃料泄漏等环境事故的增加。在这些环境中,有能够生存这种条件并使用石油碳氢化合物作为碳和能源的微生物;这些可以用于生物修复,采用生态友好和成本效益高的方法。在这项工作中,从秘鲁亚马逊漏油污染地区添加石油的培养基中分离和鉴定了具有生物修复潜力的细菌菌株;还通过针对16S rRNA基因的下一代测序对培养物进行独立分析,对细菌群落进行了表征。分离到的菌株被鉴定为不动杆菌Rudis、阴沟肠杆菌、尖克雷伯菌、Morganella Morganii、Proteus Hauseri、Proteus Terrae、Proteus vulgaris(2)、Koreensis假单胞菌、Moraviensis假单胞菌、Prosekii假单胞菌和粘质沙雷氏菌(2)。文化独立分析发现,蛋白质细菌和类杆菌科在受碳氢化合物污染的水和土壤中占主导地位;同样,家庭一级的分类学分配强调,除了这两个样本中存在的不动杆菌属、黄杆菌属和地杆菌属外,黄杆菌科、莫拉菌科、疣菌科和醋杆菌科是最丰富的类群。通过这种方式,使用依赖文化和独立技术确定了参与石油碳氢化合物降解的主要群体。关键词:水,细菌,碳氢化合物,宏基因组学,土壤。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Aislamiento de bacterias con potencial biorremediador y análisis de comunidades bacterianas de zona impactada por derrame de petróleo en Condorcanqui – Amazonas – Perú.
El uso del petroleo y sus derivados se ha visto intensificado por la alta demanda energetica actual; esto ha traido consigo el incremento de accidentes ambientales como los derrames de combustibles que afectan negativamente los ecosistemas. En estos ambientes existen microrganismos capaces de sobrevivir a dichas condiciones y utilizar los hidrocarburos de petroleo como fuente de carbono y energia; siendo propuestos en la biorremediacion con un enfoque ecoamigable y costo-efectivo. En este trabajo se aislaron e identificaron cepas bacterianas con potencial biorremediador en medios de cultivo suplementados con petroleo, a partir de una zona contaminada por derrame de petroleo en la Amazonia peruana; tambien se realizo la caracterizacion de la comunidad bacteriana por analisis independiente de cultivo mediante secuenciamiento de proxima generacion dirigido al gen ARNr 16S. Las cepas bacterianas aisladas se identificaron como: Acinetobacter rudis, Enterobacter cloacae, Klebsiella oxytoca, Morganella morganii, Proteus hauseri, Proteus terrae, Proteus vulgaris (2) , Pseudomonas koreensis, Pseudomonas moraviensis, Pseudomonas prosekii y Serratia marcescens (2). En el analisis independiente de cultivo detectaron los filos Proteobacteria y Bacteroidetes como predominantes en agua y suelo contaminados con hidrocarburos; asi mismo, la asignacion taxonomica a nivel de familia destaco los grupos Flavobacteriaceae , Moraxellaceae , Verrucomicrobia y Acetobacteraceae como mas abundantes, ademas de los generos Acinetobacter , Flavobacterium y Geobacter presentes en ambas muestras. De esta manera, se determinaron los principales grupos implicados en la degradacion de hidrocarburos haciendo uso de tecnicas dependientes e independientes de cultivo. Palabras clave: Agua, Bacterias, Hidrocarburos, Metagenomica, Suelo. Abstract: The use of oil and its derivatives has been intensified by the current high energy demand, but brought with it the increase in environmental accidents such as fuel spills that negatively affect ecosystems. In those environments there are microorganisms capable of surviving such conditions and using petroleum hydrocarbons as a source of carbon and energy; those can be used in bioremediation, with an eco-friendly and cost-effective approach. In this work, bacterial strains with bioremediation potential were isolated and identified in culture media supplemented with oil from an area contaminated from an oil spill in the Peruvian Amazon; also was done out the characterization of the bacterial community   by independent analysis of culture by means of next generation sequencing directed to the 16S rRNA gene. The isolated bacterial strains were identified as Acinetobacter rudis, Enterobacter cloacae, Klebsiella oxytoca, Morganella morganii, Proteus hauseri, Proteus terrae, Proteus vulgaris (2) , Pseudomonas koreensis, Pseudomonas moraviensis, Pseudomonas prosekii y Serratia marcescens (2). The culture-independent analysis detected the Proteobacteria and Bacteroidetes phylum as predominant in water and soil contaminated with hydrocarbons; Likewise, the taxonomic allocation at the family level highlighted the groups Flavobacteriaceae , Moraxellaceae , Verrucomicrobia and Acetobacteraceae as the most abundant, in addition to the genera Acinetobacter , Flavobacterium and Geobacter present in both samples. In this way, the main groups involved in the degradation of petroleum hydrocarbons were determined using culture-dependent and independent techniques. Key Words: Water, Bacteria, Hydrocarbons, Metagenomics, Soil.
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