Analysis of the bacterial community changes in soil for septic tank effluent treatment in response to bio-clogging

2011 ◽  
Vol 63 (7) ◽  
pp. 1412-1417 ◽  
Author(s):  
J. Y. Nie ◽  
N. W. Zhu ◽  
K. Zhao ◽  
L. Wu ◽  
Y. H. Hu
Keyword(s):  
Bacterial Community ◽  
Denaturing Gradient Gel Electrophoresis ◽  
Soil Bacterial Community ◽  
Effluent Treatment ◽  
Septic Tank ◽  
Soil Columns ◽  
Soil Infiltration ◽  
Gradient Gel Electrophoresis ◽  
Septic Tank Effluent ◽  
Soil Bacterial

Soil columns were set up to survey the bacterial community in the soil for septic tank effluent treatment. When bio-clogging occurred in the soil columns, the effluent from the columns was in poorer quality. To evaluate changes of the soil bacterial community in response to bio-clogging, the bacterial community was characterized by DNA gene sequences from soil samples after polymerase chain reaction coupled with denaturing gradient gel electrophoresis process. Correspondence analysis showed that Proteobacteria related bacteria were the main bacteria within the soil when treating septic tank effluent. However, Betaproteobacteria related bacteria were the dominant microorganisms in the normal soil, whereas Alphaproteobacteria related bacteria were more abundant in the clogged soil. This study provided insight into changes of the soil bacterial community in response to bio-clogging. The results can supply some useful information for the design and management of soil infiltration systems.

scholarly journals Effects of novel bioorganic fertilizer application on soil enzymes and bacterial community in multi-site rice paddies in China

AMB Express ◽  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zuren Li ◽  
Jincai Han ◽  
Haodong Bai ◽  
Di Peng ◽  
Lifeng Wang ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Field Experiments ◽  
Chemical Properties ◽  
Soil Bacterial Community ◽  
General Function ◽  
Rice Paddies ◽  
Phylogenetic Groups ◽  
Total N ◽  
Bioorganic Fertilizer ◽  
Soil Bacterial

AbstractApplication of a novel bioorganic fertilizer (BIO) has been effectively used to inhibit weeds in rice paddies. To identify changes in soil bacterial community and enzymes in response to BIO treatments, field experiments were carried out in five major rice-growing areas in China. The dominant phylogenetic groups recorded included Proteobacteria, Actinobacteria, Bacteroidetes, Firmicutes and Acidobacteria. Anaeromyxobacter, Bacteroides, Bifidobacterium, Escherichia- Shigella, Geobacter and Haliangium were significantly different between BIO-treatment and untreated control and aided in general function (R), amino acid transport, metabolism (E) and transcription (K) clusters. The soil chemical properties and enzyme activities were less affected by BIO at these study sites. RDA analysis showed that soil bacterial community had a significant positive correlations among northern latitude, eastern longitude, exchangeable K, total K, total P, soil pH, and total N, except for organic matter, hydrolytic N and extractable P. Overall, our work showed that application of BIO does not alter the main community structure and functional diversity of soil bacteria in rice paddies and should be encouraged for use as a sustainable weed management strategy.

scholarly journals Soil bacterial community in potato tuberosphere following repeated applications of a common scab suppressive antagonist

2021 ◽  
Vol 167 ◽  
pp. 104096
Author(s):  
Lea H. Hiltunen ◽  
Oili Tarvainen ◽  
Jani Kelloniemi ◽  
Jaakko Tanskanen ◽  
Jouni Karhu ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Common Scab ◽  
Soil Bacterial Community ◽  
Repeated Applications ◽  
Soil Bacterial

scholarly journals Effects of Simulated Nitrogen Deposition on the Bacterial Community of Urban Green Spaces

2021 ◽  
Vol 11 (3) ◽  
pp. 918
Author(s):  
Lingzi Mo ◽  
Augusto Zanella ◽  
Xiaohua Chen ◽  
Bin Peng ◽  
Jiahui Lin ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Bacterial Diversity ◽  
Negative Impact ◽  
Bacterial Community Composition ◽  
N Deposition ◽  
Soil Bacterial Community ◽  
Rrna Gene ◽  
Soil Dna ◽  
Urban Green ◽  
Soil Bacterial

Continuing nitrogen (N) deposition has a wide-ranging impact on terrestrial ecosystems. To test the hypothesis that, under N deposition, bacterial communities could suffer a negative impact, and in a relatively short timeframe, an experiment was carried out for a year in an urban area featuring a cover of Bermuda grass (Cynodon dactylon) and simulating environmental N deposition. NH4NO3 was added as external N source, with four dosages (N0 = 0 kg N ha−2 y−1, N1 = 50 kg N ha−2 y−1, N2 = 100 kg N ha−2 y−1, N3 = 150 kg N ha−2 y−1). We analyzed the bacterial community composition after soil DNA extraction through the pyrosequencing of the 16S rRNA gene amplicons. N deposition resulted in soil bacterial community changes at a clear dosage-dependent rate. Soil bacterial diversity and evenness showed a clear trend of time-dependent decline under repeated N application. Ammonium nitrogen enrichment, either directly or in relation to pH decrease, resulted in the main environmental factor related to the shift of taxa proportions within the urban green space soil bacterial community and qualified as a putative important driver of bacterial diversity abatement. Such an impact on soil life induced by N deposition may pose a serious threat to urban soil ecosystem stability and surrounding areas.

scholarly journals Early colonizers of unoccupied habitats represent a minority of the soil bacterial community

2015 ◽  
Vol 91 (5) ◽  
Author(s):  
Alexandra B. Wolf ◽  
Max-Bernhard Rudnick ◽  
Wietse de Boer ◽  
George A. Kowalchuk
Keyword(s):  
Bacterial Community ◽  
Soil Bacterial Community ◽  
Soil Bacterial
Sign in / Sign up

Export Citation Format

Share Document