肝肠胞虫对凡纳滨对虾肠道和肝胰腺菌群的影响OACSTPCD

The composition,diversity,microbial predicted functions and interspecific interactions of the intestinal and hepatopancreatic flora between healthy shrimp and diseased shrimp infected with Hepatocystis hepatica were investi-gated comparatively using 16S rRNA high-throughput sequencing.The results showed that the diversity of bacterial communities in the intestinal and hepatopancreas was higher in healthy shrimp compared to affected shrimp.At the genus level,the composition and abundance of the dominant bacteria differed significantly in the intestine and hepato-pancreas of healthy and diseased shrimp.In the intestine of healthy shrimp,Escherichia-Shigella and Spongiimonas were the dominant genera,while Shewanella,Megasphaera,Klebsiella,Pseudomonas and Halomonas were the domi-nant genera in the intestine of diseased shrimp.In the hepatopancreas of diseased shrimp Cupriavidus were the domi-nant genus.Tax4Fun2 predicted that the main functions of the intestinal and hepatopancreatic flora of healthy shrimp differed significantly from those of diseased shrimp.This study provides valuable insights into the effects of hepatic in-testinal cysts on bacterial communities in the intestine and hepatopancreas of Litopenaeus vannameis,facilitating healthy management and culture of this shrimp species.