Pubblicazione scientifica

Host-Specific Bacteroides Markers-Based Microbial Source Tracking in Aquaculture Areas

FILONE TECNOLOGICO	TEMA
economia circolare e sostenibilità
produzione e raccolta
trasformazione e commercializzazione

RIASSUNTO

Various waterborne pathogens originate from human or animal feces and may cause severe gastroenteric outbreaks. Bacteroides spp. that exhibit strong host- or group-specificities are promising markers for identifying fecal sources and their origins. In the present study, 240 water samples were collected from two major aquaculture areas in Republic of Korea over a period of approximately 1 year, and the concentrations and occurrences of four host-specific Bacteroides markers (human, poultry, pig, and ruminant) were evaluated in the study areas. Host-specific Bacteroides markers were detected widely in the study areas, among which the poultry-specific Bacteroides marker was detected at the highest concentration (1.0–1.2 log10 copies L−1). During the sampling period, high concentrations of host-specific Bacteroides markers were detected between September and December 2015. The host-specific Bacteroides marker-combined geospatial map revealed the up-to-downstream gradient of fecal contamination, as well as the effects of land-use patterns on host-specific Bacteroides marker concentrations. In contrast to traditional bacterial indicators, the human-specific Bacteroides marker correlated with human specific pathogens, such as noroviruses (r=0.337; P<0.001). The present results indicate that host-specific Bacteroides genetic markers with an advanced geospatial analysis are useful for tracking fecal sources and associated pathogens in aquaculture areas.

DATA

Data di pubblicazione: 01/06/2018

AUTORI

KO HYE YOUNG
CHO KYUSEON
PARK SUNGJUN
KIM JIN HWI
KANG JOO-HYON
JEONG YONG SEOK
CHOI JONG DUCK
SIN YONGSIK
LEE CHEONGHOON
KO GWANGPYO

ENTE DI AFFERENZA

DEPT ENVIRONMENTAL HEALTH SCIENCES GRADUATE SCHOOL OF PUBLIC HEALTH SEOUL NATL UNIV
N BIO SEOUL NATL UNIV
DEPT CIVIL & ENVIRONMENTAL ENG DONGGUK UNIV
DEPT BIOLOGY COLLEGE OF SCIENCES KYUNG HEE UNIV
DEPT SEAFOOD SCIENCE & TECH GYEONGSANG NATL UNIV
DEPT ENVIRONMENTAL ENG & BIOTECHNOLOGY MOKPO NATL MARITIME UNIV
INST HEALTH & ENVIRONMENT GRADUATE SCHOOL OF PUBLIC HEALTH SEOUL NATL UNIV
CTR HUMAN & ENVIRONMENTAL MICROBIOME SEOUL NATL UNIV

RIVISTA

Microbes and Environments, 33(2), 151-161

IMPACT FACTOR

2,390

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