scholarly journals Identification of Critical Members in a Sulfidogenic Benzene-Degrading Consortium by DNA Stable Isotope Probing

2008 ◽  
Vol 74 (20) ◽  
pp. 6476-6480 ◽  
Author(s):  
A. R. Oka ◽  
C. D. Phelps ◽  
L. M. McGuinness ◽  
A. Mumford ◽  
L. Y. Young ◽  
...  

ABSTRACT Stable isotope probing (SIP) was used to identify the active members in a benzene-degrading sulfidogenic consortium. SIP-terminal restriction fragment length polymorphism analysis indicated that a 270-bp peak incorporated the majority of the 13C label and is a sequence closely related to that of clone SB-21 (GenBank accession no. AF029045). This target may be an important biomarker for anaerobic benzene degradation in the field.

2010 ◽  
Vol 76 (5) ◽  
pp. 1695-1698 ◽  
Author(s):  
Erin M. Gallagher ◽  
Lily Y. Young ◽  
Lora M. McGuinness ◽  
Lee J. Kerkhof

ABSTRACT 2,4,6-Trinitrotoluene (15N or 13C labeled) was added to Norfolk Harbor sediments to test whether anaerobic bacteria use TNT for growth. Stable-isotope probing (SIP)-terminal restriction fragment length polymorphism (TRFLP) detected peaks in the [15N]TNT cultures (60, 163, and 168 bp). The 60-bp peak was also present in the [13C]TNT cultures and was related to Lysobacter taiwanensis.


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