Effects of diphenylarsinic acid on bacterial and archaeal community structures in an anaerobic paddy soil

► We investigated effects of DPAA on anaerobic soil microbial community structures. ► PCR-DGGE targeting bacterial and archaeal 16S rRNA genes was performed. ► A few bacterial DGGE bands on the DGGE gels disappeared or became weaker due to DPAA. ► Addition of DPAA had no significant effect on archaeal communities. ► Overall anaerobic microbial community structures were stable regardless of DPAA.