【摘 要】
:
A novel biphenyl-degrading bacterial strain LA-4 was isolated from activated sludge. It was identified as Dyella ginsengisoli according to phylogenetic similari
【机 构】
:
School of Environmental and Biological Science and Technology, Key Laboratory of Industrial Ecology
论文部分内容阅读
A novel biphenyl-degrading bacterial strain LA-4 was isolated from activated sludge. It was identified as Dyella ginsengisoli according to phylogenetic similarity of 16S rRNA gene sequence. This isolate could utilize biphenyl as sole source of carbon and energy, which degraded over 95 mg/L biphenyl within 36 h. The major metabolites formed from biphenyl, such as 2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoic acid (HOPDA) and benzoic acid, were identified by LC-MS. The crude cell extract of strain LA-4 exhibited the activity of 2,3-dihydroxybiphenyl 1,2-dioxygenase (2,3-DHBD) and the kinetic parameters were Km= 26.48 μmol/L and Vmax= 8.12 μmol/mg protein. A conserved region of the biphenyl dioxygenase gene bphA1 of strain LA-4 was amplified by PCR and confirmed by DNA sequencing.
其他文献
The topical issues of computational and experimental studies of wind effects of residential complexes in Moscow are reviewed on the examples of project building
广西地处亚热带区域,温光、物种资源丰富,特色农业条件得天独厚,如何让资源优势变市场优势,广西工商部门以培育帮扶地理证明标志为抓手,推进“商标富农”,引领特色品牌农业.r
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
摘 要:部分地区的生态平衡破坏造成严重的水土流失问题,给当地的发展造成阻碍,因此水土流失治理是我国发展中的一项重要工作。在现阶段的水土流失治理工作过程中治理方式逐渐趋于多元化,林业技术则是最经济和有效的水土流失治理方式,其在部分地区的水土流失治理工作中取得显著成果。本文就水土流失治理中林业技术措施的应用进行分析,促进水土流失治理工作稳步持续推进。 关键词:水土流失;农业技术;运用 我国是一个地
This study quantifies the influence of green spaces on microclimate and PM10 concentration in a typical residential district of Nanjing (China) by employing the
本文针对装饰装修工程管理的相关制约因素及管理应对措施,结合理论实践,在简要阐述加强装饰装修工程管理必要性的基础上,分析了制约装饰装修工程管理水平提升的主要因素,并提
随着近些年我国经济的进步和科技的发展,建筑行业也得到了飞速的发展.随着人们生活水平的提升,人们对于建筑质量的要求逐渐升高,同时也更加关注生态环保.绿色建筑工程在施工
前不久,我到乡下办事,在一个老乡家停留了一会儿.老乡家正在盖房子,一个小伙子在用自制的吊机往二楼吊水泥.突然吊机一下子把小伙子从二楼的窗户弹了下来,导致肋骨骨折.这使
本文首先阐述了节能环保技术应用对于建筑工程的重要性,接着分析了现阶段房屋建筑工程施工中节能环保技术应用存在的主要问题,最后对房屋建筑工程施工中的节能环保技术进行了
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥