The results showed , fh6 and wj belong to rhodotorula mudlaginosa and rhodotorula sp , fj , xh3 , f2 , f1 , fj2 , f8 , fj3 belong to candida guilliermondii , candida parapsilosis , candida tropicalis and candida albicans , w2 belongs to cryptococcus neoformans , fh2 , fh3 , w3 belong to cephalosporium acremonium and cephalosporium sp , fh5 belongs to aspergillus flavus , dh3 belongs to acremonium , fh4 belongs to pleospora . in the last part of this research , elementary animal experiment were processed Fh _ 2属于头孢霉属的顶头孢霉， fh _ 3 、 w _ 3属于该属的其它种； fh _ 5属于曲霉属中的黄曲霉群；菌株dh _ 3与acremoniumalternatum关系最近，属于枝顶孢霉属；菌株fh _ 4与pleosporarudis关系最近，初步归入格孢腔菌属。
The percentage of autumn degradation bacteria was the biggest , it was 0 . 547 % . among degradation bacteria genus , the bacillus proportion in each season was the biggest , that was 44 . 44 % , 50 . 00 % , 48 . 15 % and 47 . 22 % in spring , summer , autumn and winter respectively , other bacteria genus ' s proportion were less than bacillus . this was probably related to the basic proterties of soil , the alternation of four seasons , the change of temprature and the difference of vegetation were fairly suitable to the growth of bacillus 在土壤细菌总数上，夏季的细菌数量最多，其次分别为春、秋、冬各季；在土壤中降解氧乐果的细菌数量上，夏季土壤中的降解菌株数量也最多，其次分别为春、秋、冬各季，土壤磷的含量与降解氧乐果细菌的数量之间并没有太大的相关性（ r = 0 . 494 ） ；在降解菌占细菌总数百分比上，秋季降解菌株所占百分比最大，为0 . 547 % ；在降解菌株中，芽孢杆菌属（ bacillus ）在每一季节所占的比例都是最大的，春、夏、秋、冬分别为44 . 44 % 、 50 . 00 % 、 48 . 15 % 、 47 . 22 % ，其它菌属所占比例都比较少，这可能跟土壤的基本性状有关，春夏秋冬四季的轮换，气温的变化，植被的差异，耕作的不同，比较适合抗逆性较强的芽孢杆菌属（ bacillus ）的生长。
It was observed that micro - organisms in soil treated with the herbicide at a range of 2 - 50 mg / kg grown greatly different from those in control . the results showed that bacteria , such as bacillus and pseudomonas were grown most fast ; and then staphylococcus , vibrio and escherichia were increased obviously ; but that actinomyce and fungi were seemed to be inhibited by quizalofop - p - ethyl 土壤中的细菌( bacteria )种群数量在70d培养期内与对照组相比均有不同程度增加，其中芽孢杆菌( bacillus ) 、假单胞杆菌( pseudomonas )的生长最快，弧菌属( staphylococcus ) 、埃希氏菌属( hibrio )和葡萄球菌属( escherichia )的生长速度次之。
Identification of functional bacteria showed predominant ammonifiers were shewanella , variovorax , chryseobacterium , bacillus or aeromonas ; among 4 selected nitrogen fixers , one ( azorhizobium caulinodans ) belonged to . a - proteobacteria , the other three ( serratia marcescens , klebsiella pneumoniae and citrobacter freundii ) were enterobacteriace , which belongs to - proteobacteria ; 2 nitrate reducers were aeromonas sp . and citrobacter sp . , 对各功能菌群中的优势菌的鉴定表明，优势的氨化细菌为希瓦氏菌属，产碱菌属，黄杆菌属，芽孢杆菌属或气单胞菌属；分离到的4个优势固氮细菌菌株中，一株为基瘤固氮根瘤菌，属于-变形菌亚门，而另外3株都属于肠杆菌科，归于-变形菌亚门。
After further purifing the isoloated bacteria , we classified and characterized them , according to their individual form , physiological and biochemical to characterize , characterize to bacteria genus . calculated the total of aerobic bacteria in soil of each senson , the total of bacteria of degrading omethoate , as well as the percentage of each degradation bacteria genus , and measured the physico chemical nature of each seasonal soil sample 将分离到的菌株进一步纯化后，按其个体形态、生理生化特征，进行分类鉴定，鉴定到菌属；计算出各季节土壤中的细菌总数、降解有机磷农药氧乐果的细菌总数以及各降解菌属的百分比，测出各季节土壤样品的物理化学性质。
The genetic analysis of the mechanism of magnetosome biosynthesis in magnetospirillum gryphiswaldense msr - 1 has been hampered by the lack of an appropriate genetic manipulation system . here reported on the establishment of a genetic manipulation system that can be used more readily than that of the others for magnetospirillum 格瑞菲斯瓦尔德磁螺菌( magnetospirillumgryphiswaldensemsr - 1 )为趋磁螺菌属( magnetospirillum )的模式菌株，能够在胞内合成大小约为42am的磁小体( magnetosome ) 。
The results of the experimental tests show that nh4cl and k2hpo4 , kh2po4 are the most available nutrents to our isolates when they are degrading oils . the most suitable experinment condition is : temperature being 30 c , initial ph being 7 - 8 , the shaking rate of the culture flasks is 180 r / min , the concentration of nacl is 1 % . the biodegradation results have shown that our 6 isolates have the effective degradation capability to crude oil ; within 6 days the transforing rate of oil by each single strain is more than 60 % 本研究分离出的6株菌，初步鉴定结果为： sy1为微杆菌属、 sy2为诺卡氏菌属、 sy3和sy5为假单胞菌属、 sy4和sy6为芽孢杆菌属；实验结果表明， 6菌株的最佳氮源为氯化铵( nh _ 4cl ) ，最佳磷源为磷酸氢二钾和磷酸二氢钾的混合物，最适生长条件为：温度为30 ，初始ph值为7 8 ，摇床转速为180r min ，盐( nacl )浓度为1 ；通过降解实验得出6株菌对原油都有较强的降解能力，单一菌株在5天后的原油降解率都高于60 ， 6株菌对原油的生物降解反应符合一级反应动力学特征。
Strain 05002 was another halotolerant fungus . it grew in 5 - 10 % nacl condition but best at 0 - 5 % . it optimally grew at ph 7 . 0 and 4 - 10 . so it belong to psychrophiles . on the basis of the above results of polyphasic taxonomy , the phylogenetic structure and classification of unknown strains were exactly defined 菌株10001为纤维单胞菌科( cellulomonadaceae )一新属，菌株10035为链霉菌属(凡尸印to恻ces )一新种，菌株10002和菌株10010 ，菌株10036和菌株10030可能为拟诺卡氏菌属(肠cardiop : l ’ s )的新种。
Three phenanthrene - degrading bacteria were isolated from soil samples contaminated by oil , which are capable of using phenanthrene as sole carbon and energy sources , and were identified to be belonged to sphingomonas , strain zx4 as s . paucimobilis , strain zx6 as s . aromaticivorans and strain eva 17 not being identified to species , respectively , based on the results of physio - biochemical tests and the phylogenetical analyses of 16s rdna sequence 实验结果分述如下： 1 、本研究从石油污染土壤中分离到3株菲降解细菌( zx4 、 zx6和eva17 ) ，它们都能以菲为唯一碳源和能源生长。经鉴定3菌株都归于鞘氨醇单胞菌属( sphingomonas ) ，其中zx4菌株为少动鞘氨醇单胞菌( sphingomonaspaucimobolis ) ， zx6菌株为溶芳烃鞘氨醇单胞菌( sphingomonasaromatics ) ， eva17菌株比较独特，尚未能鉴定到种。
