Microbial Diversity of Chromium-Contaminated Soils and Characterization of Six Chromium-Removing Bacteria

2016 ◽  
Vol 57 (6) ◽  
pp. 1319-1328 ◽  
Author(s):  
Zhiguo He ◽  
Yuting Hu ◽  
Zhen Yin ◽  
Yuehua Hu ◽  
Hui Zhong
Keyword(s):  
Microbial Diversity ◽  
Contaminated Soils

scholarly journals Characterization of the microbial diversity in yacon spontaneous fermentation at 20°C

2015 ◽  
Vol 203 ◽  
pp. 35-40 ◽  
Author(s):  
L.D. Reina ◽  
I.M. Pérez-Díaz ◽  
F. Breidt ◽  
M.A. Azcarate-Peril ◽  
E. Medina ◽  
...  
Keyword(s):  
Microbial Diversity ◽  
Spontaneous Fermentation

scholarly journals Isolation and characterization of arsenic resistant soil bacteria and their effects on germination of rice under arsenic contamination

2015 ◽  
Vol 2 (2) ◽  
pp. 229-237
Author(s):  
Istiaq Ahmed ◽  
Md Tofazzal Islam ◽  
Md Akhter Hossain Chowdhury ◽  
Md Kamruzzaman
Keyword(s):  
Contaminated Soils ◽  
Sodium Arsenite ◽  
Agar Plate ◽  
Rice Seedling ◽  
Resistant Bacteria ◽  
Gram Staining ◽  
Isolation And Characterization ◽  
Resistant Strains

This study was carried out to isolate, screen and characterize arsenic (As) resistant bacteria from As contaminated soils of Dumrakandi and Matlab under Faridpur and Chandpur districts and to evaluate their efficiency in reducing As toxicity against rice seedlings during germination. Thirteen strains were isolated from the soils which showed resistance to different levels of sodium arsenite (viz. 5, 10, 20 and 40 mM) in both agar plate and broth assay using BSMY I media. Among the isolates, BTL0011, BTL0012, BTL0015 and BTL0022 showed highest resistance to 40 mM sodium arsenite. Gram staining and KOH solubility test revealed that five strains were gram positive and rest eight was gram negative. They grew well in the liquid media at pH 5.5 to 8.5. In-vitro rice seedling bioassay with two superior isolates (BTL0011 and BTL0022) revealed that As resistant strains significantly enhanced seed germination of BRRI dhan29 and BRRI dhan47 at 60 ppm As. This study was laid out in CRD with three replications. The performance of BTL 0022 was superior to BTL0011. The overall results suggest that BTL0011 and BTL0022 can be used for bioremediation of As contaminated soils and to increase the germination and seedling growth of rice in As contaminated soils.Res. Agric., Livest. Fish.2(2): 229-237, August 2015

scholarly journals Microbial diversity characterization of seawater in a pilot study using Oxford Nanopore Technologies long-read sequencing

2020 ◽  
Author(s):  
Michael Liem ◽  
Tonny Regensburg-Tuïnk ◽  
Christiaan Henkel ◽  
Hans Jansen ◽  
Herman Spaink
Keyword(s):  
Microbial Diversity ◽  
Environmental Samples ◽  
Sea Water ◽  
Flow Cells ◽  
Oxford Nanopore ◽  
Challenging Tasks ◽  
Long Read ◽  
Close Relatives ◽  
Oxford Nanopore Technologies

Abstract Objective: Currently the majority of non-culturable microbes in sea water are yet to be discovered, Nanopore offers a solution to overcome the challenging tasks to identify the genomes and complex composition of oceanic microbiomes. In this study we evaluate the utility of Oxford Nanopore Technologies (ONT) sequencing to characterize microbial diversity in seawater from multiple locations. We compared the microbial species diversity of retrieved environmental samples from two different locations and time points.Results: With only three ONT flow cells we were able to identify thousands of organisms, including bacteriophages, from which a large part at species level. It was possible to assemble genomes from environmental samples with Flye. In several cases this resulted in >1 Mbp contigs and in the particular case of a Thioglobus singularis species it even produced a near complete genome. k-mer analysis reveals that a large part of the data represents species of which close relatives have not yet been deposited to the database. These results show that our approach is suitable for scalable genomic investigations such as monitoring oceanic biodiversity and provides a new platform for education in biodiversity.

Isolation and Characterization of Biosurfactant Producing and Crude Oil Degrading Bacteria from Oil Contaminated Soils

2017 ◽  
Vol 42 (3) ◽  
pp. 1149-1156 ◽  
Author(s):  
Ali Ebadi ◽  
Mohsen Olamaee ◽  
Nayer Azam Khoshkholgh Sima ◽  
Reza Ghorbani Nasrabadi ◽  
Maryam Hashemi
Keyword(s):  
Crude Oil ◽  
Contaminated Soils ◽  
Isolation And Characterization ◽  
Degrading Bacteria

scholarly journals Selective Isolation and Phenotypic Characterization of Bacteria and Actinomycetes from Oil-contaminated Soils

2018 ◽  
Vol 151 ◽  
pp. 012039
Author(s):  
C A Rodríguez ◽  
T C Gavilánez ◽  
J P Chamorro ◽  
A G Vinueza ◽  
D M Salazar ◽  
...  
Keyword(s):  
Contaminated Soils ◽  
Phenotypic Characterization ◽  
Selective Isolation

Identification and characterization of o-xylene-degrading Rhodococcus spp. which were dominant species in the remediation of o-xylene-contaminated soils

2006 ◽  
Vol 18 (1) ◽  
pp. 17-26 ◽  
Author(s):  
Hironori Taki ◽  
Kazuaki Syutsubo ◽  
Richard G. Mattison ◽  
Shigeaki Harayama
Keyword(s):  
Contaminated Soils ◽  
Dominant Species ◽  
Identification And Characterization
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