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Title: Characterization of phthalate-degrading bacteria from Asian carp microbiomes and riverine sediments

Journal Article · · International Biodeterioration and Biodegradation
 [1];  [2];  [1]
  1. Governors State Univ., University Park, IL (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
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Phthalates are ubiquitous in the environment due to widespread production and distribution. The carcinogenic compounds dimethyl phthalate (DMP), diethyl phthalate (DEP), and dibutyl phthalate (DBP) are non-covalently bonded to plastics; thus prone to dispersal in various environments. Phthalates not only sorb to riverine sediments, but are also taken up by a variety of aquatic organisms. Asian carp species silver (Hypophthalmichthys molitrix) and bighead (Hypophthaltnichthys nobilis) are exposed to phthalates by ingestion and absorption.,The biodegradation of phthalates has been extensively investigated; however, no studies have isolated phthalate degrading bacteria from aquatic species. The purpose of this study was to characterize the growth and biodegradation kinetics of phthalate-degrading bacteria isolated from the gut, gill, and scale microbiomes of Asian carp, and riverine sediments. 16S rRNA sequencing identified similar genera in sediment and H. molitrix gut microbiome inoculated phthalate enrichments. Achromobacter aegrifaciens strain SKTGEO1 and Pseudomonas japonica strain SKEO1 were enriched from sediments; Bacillus subtilis strain SK18, Pseudomonas putida strain SKTG1, and Consortium SK-1 were enriched from Asian carp microbiomes. Each bacteria isolated was shown to eliminate phthalates from experimental systems. This is the first study documenting the biodegradation of phthalates by bacteria isolated from Asian carp gut and H. molitrix scale microbiomes.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23). Subsurface Biogeochemical Research; USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1574796
Alternate ID(s):
OSTI ID: 1702872
Journal Information:
International Biodeterioration and Biodegradation, Vol. 143, Issue C; ISSN 0964-8305
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

Figures / Tables (14)

Fig. 1(p. 35)figure Fig. 1
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Fig. 5(p. 38)figure Fig. 5
Table 1(p. 38)table Table 1
Table 2(p. 39)table Table 2
Table S1(p. 41)table Table S1
Fig. S1(p. 42)figure Fig. S1
Fig. S2(p. 43)figure Fig. S2
Fig. S3(p. 44)figure Fig. S3
Fig. S4(p. 45)figure Fig. S4
Fig. S5(p. 46)figure Fig. S5
Fig. S6(p. 47)figure Fig. S6

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Related Subjects

59 BASIC BIOLOGICAL SCIENCES
Asian carp
bacteria
biodegradation
isolation
microbiomes
phthalates