| 查看: 242 | 回复: 1 | ||
[求助]
求助文献
|
|
Seasonal and diel distributions of denitrifying and bacterial communities in a hypersaline microbial mat (Camargue, France). Abstract Changes in spatio-temporal distribution of bacterial and denitrifying communities were qualitatively studied in a microbial mat from Camargue (France). During a diel and a seasonal cycle, patterns of 16S rRNA and nitrite reductase genes (nirS and nirK) were compared by denaturing gradient gel electrophoresis (DGGE). Statistical analysis of DGGE profiles showed a significant seasonal shift in the community structure of the nirS-containing bacteria with a winter superficial population that extended in summer, whereas the nirK-containing bacteria seemed more affected by vertical gradients rather than by month-to month-changes. Denitrifying activities remained stable during these sampling times. The bacterial community at the surface of the mat also changed according to season, but appeared stable over a day. Finally, during a diel cycle nirK populations were localized in zones with large fluctuations of environmental parameters (oxygen, pH, and sulfur levels) while nirS populations seemed more restricted to the permanent anoxic layer of the microbial mat. |
回复此楼» 猜你喜欢
职称评审没过，求安慰
已经有14人回复
-
投稿Elsevier的Neoplasia杂志，到最后选publishing options时页面空白，不能完成投稿
已经有15人回复
-
毕业后当辅导员了，天天各种学生超烦
已经有4人回复
-
EST投稿状态问题
已经有4人回复
-
聘U V热熔胶研究人员
已经有10人回复
-
求助文献
已经有3人回复
-
垃圾破二本职称评审标准
已经有10人回复
-
投稿返修后收到这样的回复，还有希望吗
已经有8人回复
-
三无产品还有机会吗
已经有6人回复
-
谈谈两天一夜的“延安行”
已经有13人回复
WSW_Alone
木虫 (著名写手)
- MicEPI: 2
- 应助: 25 (小学生)
- 金币: 7088.4
- 红花: 6
- 帖子: 1254
- 在线: 281小时
- 虫号: 821578
- 注册: 2009-08-04
- 性别: GG
- 专业: 微生物生态学
【答案】应助回帖
感谢参与，应助指数 +1