生物膜广泛存在于供水管网系统，生物膜为水中微生物的繁殖提供了良好的场所，许多致病微生物可聚集附着于生物膜生长。研究表明，生物膜附着的细菌数量远多于水体，细菌随生物膜老化脱落可重新进入水中，对饮用水安全具有潜在风险性。而饮用水中条件致病菌，如军团菌、非结核分支杆菌等，它们适应贫营养环境，具备较强的耐热、抗消毒剂能力，在水中存活能力强，更易于在生物膜上生长繁殖。
The biosynthesis of selenium nanoparticles (SeNPs) by Mariannaeasp.HJ was reported for the first time.Different cultural conditions,including SeO2 concentrations and pH were studied,2 mM SeO2 and pH 1
Understanding the relationship between the biodiversity of microbial communities and ecosystem functioning has been one of the grand challenges among ecologists.However,the extremely diverse of natura
Manure application is a common practice that not only adds nutrients and organic matter to arable soils for crop growth,but also introduces antibiotic resistance genes (ARGs),posing a potential risk t
Prorocentrum donghaiense blooms frequently occur in the Yangtze River Estuary and the adjacent East China Sea and have destroyed marine ecosystem and caused enormous economic losses over the past two
The phylogenetic diversity of bacterial communities in the response to environmental disturbance such as organic pollution has been well studied,but little known about how organic contaminants influen
由灰霉病菌(Botrytis cinerea)引起的水果、蔬菜及花卉等植物灰霉病在国内外广泛存在，其造成了巨大的经济损失。由于传统化学杀菌剂易导致抗性或耐受性菌株产生，有毒性且长期滥用后存在环境污染及食品安全等问题，所以人们把目光转移到了具有高效性、环境友好及安全可靠等优点的生物防治方法上。生防细菌能通过多种机制来抑制病原菌，其中产生活性次级代谢产物是最主要的机制之一，如抗菌蛋白或抗菌肽等。
Distilled grain waste (DGW) is a major waste eluted from Chinese spirit-making process.Composting can convert DGW into a sanitized,stabilized and mature product for use as fertilizer or soil amendment
5-hydroxypicolinic acid (5HPA) is a natural pyridine derivative that can be microbially degraded.However,the physiological,biochemical,and genetic foundation of the microbial catabolism of 5HPA remain
响应面法已经能够运用于发酵过程的优化,可以对发酵培养基及培养条件等因素进行考察和评价.解淀粉芽孢杆菌对棉花黄萎病致病菌大丽轮枝菌具有明显的拮抗作用,为了探明生防菌株解淀粉芽孢杆菌的最佳发酵培养条件,提高其抑菌活性,应用响应面方法对该菌株发酵培养基进行优化,以抑菌圈半径为响应值.通过单因素多水平试验方法分析,研究碳源、氮源、C/N、培养温度、培养时间、转速、接种量、初始pH等因子对抑菌活性的影响,同