好氧细菌

The aerobe of aerobic sewage liquid in summer were significant more than that in spring.②The anaerobe and anaerobe facultative of anaerobic sewage liquid in autumn were notablely significant more than that in winter.

2冬季厌氧沼液的厌氧培养和需氧培养的细菌数量，均极显著低于秋季；冬季好氧沼液中的需氧培养出的细菌数，显著低于秋季。

The aerobe of aerobic sewage liquid in autumn was significant more than that in winter.③In summer, autumn and winter, the anaerobe of anaerobic sewage liquid were significant more than that of aerobic sewage liquid.

3夏、秋季的厌氧沼液，厌氧培养出的细菌数极显著高于好氧沼液厌氧培养出的细菌；冬季厌氧沼液厌氧培养出的细菌数，显著高于好氧沼液厌氧培养出的细菌。

Good knowledge and understanding of EGB process and characteristic of anaerobic and aerobic biomass.

拥有较强的EGB生产工艺，了解厌氧、好氧细菌的特性。

The cultural condition of PGPR strains Temperature,pH,light,cultural method,acid or alkali producing,and salt tolerance of 9 PGPR strains isolated from Gramineous Forage were tested,the results showed that all the PGPR strains could grow in the temperature range from 5℃～45℃,and optimum temperature for 178,O-6,Dry6 strains was 35℃,for X5,173,Y5,C-6 strains was 30℃,for N4 strain was 25℃～35℃,for 86 strain was 25℃;most of PGPR strains prefered to neutral or alkaline condition,strains 178,O-6,N4 and X5 were preferable to alkali condition especially;light was beneficial to PGPR's growth;all of them produce alkali;most of PGPR strains were not sensitive to NaCl concentration;all the strains were aerobiotic bacteria.

结果表明：各供试菌株对温度的适应范围较广，在5℃～45℃范围内均能生长，178、O-6、Dry6 菌株的适宜生长温度为35℃，X5、173、Y5、C-6 菌株的适宜生长温度为30℃，N4 菌株的适宜生长温度为25℃～35℃，86 菌株的适宜生长温度为25℃；大部分菌株在中性或偏碱性的条件下生长好，特别是Dry6、N4 和X5 菌株对碱性环境适应性强，在pH 值8.0 时生长最好；光照有利于菌株的生长；绝大部分菌株在3%NaCl浓度下生长良好，在5%～7% NaCl 浓度下除173 和86 菌株外，其它菌株都能生长，即对盐份的耐受性较好，且9 个菌株均为产碱菌；除173 菌株是兼性厌氧细菌外，其它都是好氧性细菌。

Ammonia and nitrate, ferrous ion, sulfide, various gases and organic acids are sequentially formed, corresponding to the activities of aerobic and facultatively anaerobic bacteria, sulfate-reducing bacteria, and methane-producing bacteria with the development of reduction reactions.

在还原过程中，随着好氧细菌、兼性厌氧细菌、硫酸还原菌和甲烷菌的活动，相继形成氨、硝酸根离子、亚铁离子、硫化物、气体物质及有机酸。

UV-B radiation decreased significantly thequantity of bacteria,actinomyces and fung.UV-B rediation affected significantly the quantity of azotobacter, nitrobacter,denitrifying bacteria, cellulose decomposing bacteria and phosphate decomposing bacteria,but these effects depended ondevelopmental stages of spring wheat.The population qua...

UV－B辐射能显著降低细菌总数以及放线菌和真菌数量；UV－B辐射对好氧性自生固氮菌、亚硝酸细菌、反硝化细菌、好氧性纤维素分解菌和解磷细菌数量也有显著的影响，但这种影响具有生育期之间的差异，春小麦根际土壤微生物种群数量与土壤营养成分有关。

According to the above study result, the diversity of microorganisms population in the SUFR system is complex and the bio-community formed in the SUFR system is stable. The close relations between abundance of bacteria and nutrients were found. The correlation between heterotrophic bacteria and COD was 0.949. The correlation between organic phosphate bacteria and TP was 0.815. The correlation between nitrosobacteria and NH3-N was 0.909. The correlation between disnitrifier bacteria and TN was 0.653. These inneglectable great factors effecting on phosphorus-uptake and phosphorus-release of phosphorus accumulating organisms are the influent COD、the concentration of DO、the sludge retention time、the temperature. The diversity of organic phosphate bacteria population in the SUFR reactor was complex and there is no phosphate bacteria taking the absolute superiority in quantity. The near-native pure culture method powerfully complement the traditional pure culture technique and enrich culture technique. The sludgy bioactivity is very good in whole SUFR reactor. By the quality of being biochemistry, the anaerobic phase is higher than anoxic phase and the anoxic phase is higher than aerobic phase of SUFR.

通过以上试验内容研究发现，SUFR 系统中的微型动物种群较多，微生物生态系统稳定；系统中微生物的数量与营养盐的含量密切相关，其中总异养菌与COD的相关系数r 为0.949，有机磷细菌与TP 的相关系数r 为0.815，亚硝化菌与NH4+-N的相关系数r 为0.909，反硝化菌的数量和TN 的相关系数r 为0.653；污水生物除磷工艺中进水COD 的浓度、DO 浓度、泥龄的长短、温度都是影响聚磷菌释磷及吸磷效果的不可忽视的因素；SUFR 系统中的磷细菌呈现种群多样化的趋势，没有占绝对优势数量的磷细菌；微孔滤膜近自然培养法是对传统纯培养技术和富集培养技术的有力补充；整个SUFR 反应器系统中污泥的生物活性很好，就可生化性来讲，厌氧反应器大于缺氧反应器大于好氧反应器；按照动力学方程式求出的细胞生长动力学特征值和SUFR 脱氮除磷系统工艺的实测值结果基本吻合。

The purpose of this study is to screen microorganisms with growth inhibition against plant fungal pathogens. The plate-dilution method was used to isolate the bacteria from salt marshes at Dafeng, Jiangsu. The antifungal activity of the bacterial broth filtrates against 5 phytopathogens was determined using mycelial disk method. The antifungal compositions of four active bacteria were analyzed primarily with chromatography techniques. Two hundred and thirty-five aerobic (92) and anaerobic (143) bacterial strains have been isolated from the coast salt marsh and sixty-five strains, of which 39 are aerobic and 26 are anaerobic showed greater than 30% of inhibition rate against the growth of at least one of the phytopathogenic fungi on petri dish.

为了开发对植物病原真菌生长有抑制作用的药源微生物，本实验采用平板稀释法从江苏大丰盐沼湿地土壤中分离微生物，并通过菌丝块法检测这些微生物代谢产物对5种植物病原真菌生长的抑制活性，进而利用柱层析分析其活性成分；结果共分离得到235株细菌，其中好氧细菌92株，厌氧细菌143株；体外活性测试结果显示有65株至少对1种测试植物病原真菌的抑制率在30%以上，其中好氧菌39株，厌氧菌26株。

Aerobic decay soon depletes the water of oxygen,the aerobic organisms die off and anaerobic bacteria take over.

好氧细菌会很快耗尽水中的氧气而死，厌氧菌紧接着占据了这片植物。

Therefore, many researchers have been focusing on the biodegradations of PAHs by various aerobic bacteria.

在自然环境中，好氧细菌对PAHs的生物降解是一种很重要的方式，凸显其在清除环境PAHs污染物中具有广阔的应用前景。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。