Diversity of epiphytic bacterial communities on male and female Porphyra haitanensis

Abstract

Abstract Purpose To study the structure of the epiphytic bacterial community of the male and female Porphyra haitanensis, in order to explore the similarities and differences of epiphytic bacterial community structure between dioecious macroalgae. Methods Collection of male and female Porphyra haitanensis from the intertidal zone of Niushan Island, Fujian, China. Epiphytic bacteria were collected and studied, and the community composition and diversity of epiphytic bacteria were explored using high-throughput sequencing technology. Results There was no significant difference between male and female Porphyra haitanensis on α-diversity and β-diversity. Proteobacteria and Bacteroidetes were the core microbiota in male and female Porphyra haitanensis. Bacteria from the Maribacter (male 14.87%, female 1.66%) and the Tenacibaculum (male 1.44%, female 25.78%) were the most indicative epiphytic bacterial taxa on male and female Porphyra haitanensis. Conclusions Sex differences have some influence on the construction of epiphytic bacterial communities in Porphyra haitanensis, but they are not the decisive factors affecting the construction of epiphytic bacterial communities in Porphyra haitanensis.

Keywords

• Diversity of epiphytic bacteria
• Male and female Porphyra haitanensis
• 16S rRNA high-throughput sequencing