"Specific"
Dechlorinating Bacteria
|
| Target |
MI Code
|
Contaminant
|
Environmental
Relevance |
| Dehalococcoides
spp. |
qDHC
|
PCE, TCE, DCE,
VC
|
Only "known" group of bacteria
capable of dechlorinating PCE and/or TCE to ethene. Capabilities vary
depending upon the strain. |
| BAV1 R-Dase |
qBAV1
|
VC
|
Functional gene found within the DHC
strain BAV1 which encodes for the reductive dehalogenase that catlyzes
the direct dechlorination of VC. |
| TCE R-Dase |
qTCE
|
-
|
Functional gene for strains 195 and
FL2, that encodes for the TCE reductive dehalogenase (TCE R-Dase) which
catlyzes the dechorination of TCE to VC. |
| Dehalobacter
spp. |
qDHB
|
PCA, TCA, PCE,
TCE
|
Capable of dechlorinating PCE and TCE
to cis-DCE. Also capable of converting TCA to chloroethane. |
| Desulfuromonas
spp. |
qDSM
|
PCE, TCE
|
Capable of dechlorinating PCE and TCE
to cis-DCE using acetate as it's electron donor. |
| |
|
|
|
Bacterial Groups
|
| Target |
MI Code
|
Contaminant
|
Environmental Relevance |
| Total
Eubacteria |
qEBAC
|
-
|
Used as a broad index at the domain
level for the amount of total bacterial biomass |
| SRB/IRB |
qSRB/IRB
|
-
|
Estimates the abundance of sulfate
and iron reducing reducing by targeting bacteria within the
deltaproteobacteria group including Geobacter, Pelobacter,
Desulfovibrio, Desulfomicrobium, Desulforomusa, and Desulfuromonas.
|
| Methanogens |
qMGN
|
-
|
Quantifies the abundance of
methanogens which compete with dechlorinating bacteria for available
hydrogen (to produce methane). |
| Methanotrophs |
qMOB
|
Co-Metabolic
oxidation of TCE & DCE
|
Methanotrophic bacteria possess the
methane monooxygenase (MMO) enzyme which can oxidize or metabolize
compounds such as TCE and DCE |
| sMMO |
qsMMO
|
Co-Metabolic
oxidation of TCE & DCE
|
Functional gene which targets the
enzyme soluble methane monooxygenase (sMMO) which is found in
methanotrophic bacteria |
| Dentrifying
Bacteria |
qDNF
|
-
|
- |
| Ammonia
Oxidizing Bacteria |
qAOB
|
-
|
- |
| |
|
|
|
Petroleum
Hydrocarbon Utilizing Bacteria
|
| MTBE utilizing PM1 |
qPM1
|
MTBE
|
Primary organism that has been shown
to degrade MTBE aerobically. |
| PAH utilizing Bacteria |
qPAH
|
BTEX
|
Targets genes which encode for the
intial breakdown of aromatic compounds |
| Alkane utilizing Bacteria |
qALK
|
Alkanes
|
Targets genes which encode for the
intial breakdown of alkanes. |
| Napthalene Utilizing Bacteria |
qNAH
|
Creosote,
Napthalene
|
Targets a gene which encodes for the
intial enzyme (naphthalene diooxygenase) involved in the breakdown of
naphthalene. |
| Anaerobic BTEX |
qBSS
|
Toluene, Xylene
|
Provides and index on the abundance
of bacteria which are capable of breaking down toluene and xylene
anaerobically. |
