MP	Microplastic
ARG	Antibiotic resistance gene
TC	Tetracycline
TCHCl	Tetracycline hydrochloride
SEM	Scanning electron microscopy
TEM	Transmission electron microscopy
FISH	Fluorescence in situ hybridization
PS	Polystyrene
ASW	Artificial seawater treatment control group
LTC	Low-concentration tetracycline treatment group
HTC	High-concentration tetracycline treatment group
LMPs	Low-concentration MP treatment group
LTLP	Low-concentration tetracycline combined with low-concentration MP treatment group
HTLP	High-concentration tetracycline combined with low-concentration MP treatment group
HMPs	High-concentration MP treatment group
LTHP	Low-concentration tetracycline combined with high-concentration MP treatment group
HTHP	Low-concentration tetracycline combined with high-concentration MP treatment group
CTAB	Cetyltrimethylammonium bromide
PCR	Polymerase chain reaction
ASV	Amplicon sequence variant
NMDS	Non-metric multidimensional scaling
OTU	Operational taxonomic unit
LDA	Linear discriminant analysis
AMR	Antimicrobial resistance
PCB	Polychlorinated biphenyls