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Pregled bibliografske jedinice broj: 693948

Časopis

Autori: Jurina, Tamara; Terzić, Senka; Ahel, Marijan; Stipičević, Sanja; Kontrec, Darko; Kurtanjek, Želimir; Udiković-Kolić, Nikolina
Naslov: Catabolism of terbuthylazine by mixed bacterial culture originating from s-triazine contaminated soil
( Catabolism of terbuthylazine by mixed bacterial culture originating from s-triazine contaminated soil )
Izvornik: Applied microbiology and biotechnology (0175-7598) 98 (2014), 16; 7223-7232
Vrsta rada: članak
Ključne riječi: terbuthylazine; biodegradation; bacterial culture; s-triazines
( terbuthylazine; biodegradation; bacterial culture; s-triazines )
Sažetak:
The s-triazine herbicide terbuthylazine (TERB) has been used as the main substitute of atrazine in many EU countries for more than ten years. However, the ecological consequences of this substitution are still not fully understood. Since the fate of triazine herbicides is primarily dependent on microbial degradation, in this paper we investigated the ability of a mixed bacterial culture, M3-T, originating from s-triazine contaminated soil, to degrade TERB in liquid culture and soil microcosms. The M3-T culture grown in mineral medium with TERB as the N source and citrate as the C source degraded 50 mg L-1 of TERB within 3 days of incubation. The culture was capable of degrading TERB as the sole C and N source, though at slower degradation kinetics. A thorough LC-MS analysis of the biodegradation media showed the formation of hydroxyterbuthylazine (TERB-OH) and N-t-butylammelide (TBA) as major metabolites and desethylterbuthylazine (DET), hydroxydesethylterbuthylazine (DET-OH) and cyanuric acid (CA) as minor metabolites in the TERB degradation pathway. TBA was identified as a bottleneck in the catabolic pathway leading to its transient accumulation in culture media. The supplementation of glucose as the exogenous C source had no effect on TBA degradation, whereas citrate inhibited its disappearance. The addition of M3-T to sterile soil artificially contaminated with TERB at 3 mg kg-1 soil resulted in an accelerated TERB degradation with t1/2 value being about 40 times shorter than that achieved by the native microbial community. Catabolic versatility of M3-T culture makes it a promising seed culture for accelerating biotransformation processes in s-triazine-contaminated environment.
Projekt / tema: 098-0982934-2712
Izvorni jezik: eng
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Geologija,Biotehnologija
Puni text rada: 693948.Jurina2014_amb.pdf (tekst priložen 27. Kol. 2014. u 17:03 sati)
URL Internet adrese: http://link.springer.com/article/10.1007%2Fs00253-014-5774-8
Broj citata:
Altmetric:
DOI: 10.1007/S00253-014-5774-8
URL cjelovitog teksta:
Google Scholar: Catabolism of terbuthylazine by mixed bacterial culture originating from s-triazine contaminated soil
Upisao u CROSBI: Nikolina Udiković Kolić (Nikolina.Udikovic.Kolic@irb.hr), 14. Tra. 2014. u 09:26 sati



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