J 2018

Influx and concentration of triazine pesticides in the Amaterska cave system, Moravian Karst, Czech Republic.

MODRÁ, Helena, E. GRUBEROVÁ, O. KONEČNÝ, Vít ULMANN, Petra KAUCKÁ et. al.

Basic information

Original name

Influx and concentration of triazine pesticides in the Amaterska cave system, Moravian Karst, Czech Republic.

Authors

MODRÁ, Helena (203 Czech Republic), E. GRUBEROVÁ (203 Czech Republic), O. KONEČNÝ (203 Czech Republic), Vít ULMANN (203 Czech Republic), Petra KAUCKÁ (203 Czech Republic), Markéta VLKOVÁ (203 Czech Republic, belonging to the institution), A. TŮMA (203 Czech Republic), T. HALEŠOVÁ (203 Czech Republic), Jan KUDĚLKA (203 Czech Republic), Milan GERŠL (203 Czech Republic) and Ivo PAVLÍK (203 Czech Republic)

Edition

Journal of Soils and Sediments, HEIDELBERG, GERMANY, SPRINGER HEIDELBERG, 2018, 1439-0108

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10606 Microbiology

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.669

RIV identification code

RIV/00216224:14310/18:00102447

Organization unit

Faculty of Science

DOI

UT WoS

000422913000030

Keywords in English

Atrazine; Degradation; Karst; Microbiom; Mycobacterium; Sediment; Soil

Tags

Změněno: 23/4/2024 11:08, Mgr. Michal Petr

Abstract

V originále

Purpose The aim of this study was to detect three triazine pesticides and their metabolites in the drip water and the sediment of the Amaterska cave system. Diversity of the bacterial community in the sediment was also assessed, and the potential role of bacteria in degradation of these pesticides was evaluated. Materials and methods Triazines and their metabolites were analyzed in the soil, drip water, and sediment of the Amaterska cave system area in seven sampling sites (S1–S7) based on the above ground cover that included forest, permanent grassland, and agriculture cropland. The bacterial community in the cave sediments (S1–S6) was also analyzed using the Illumina sequencing of the V3 and V4 regions of 16S rDNA. Results and discussion Triazines were present in the soil and drip water in all sites below grassland and agricultural land but not under the forest area. Only atrazine metabolites were detected in the surface soil. In contrast, atrazine was detected in all cave sediments regardless of above ground cover, and this is likely due to the occasional alluvial influx. The overall prevalence of bacteria potentially capable of atrazine degradation in the cave sediment ranged from 13.4 to 64.0% of the entire bacterial community. The concentrations of atrazine in the cave sediment were 16 to 70 times higher than in those in drip water. Conclusions High concentrations of atrazine in the cave sediment indicate a slow degradation rate of triazines in the cave likely due to low temperatures and absence of photolysis. The main source of atrazine in the Amaterska cave system is likely not drip water but the alluvial influx. Bacteria potentially capable of triazine degradation in the cave sediment were detected; however, their role in this process remains to be investigated.