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Comparison in structure and predicted function of epiphytic bacteria on neopyropia yezoensis and neopyropia katadae

Journal of Oceanology and Limnology 2023年第6期41卷 2232-2248页

作者： Xinran WANG Junhao WANG Yunke ZHU Xinyu ZHU Hong QIN Ka BIAN Xianghai TANG Key Laboratory of Marine Genetics and Breeding(Ministry of Education) College of Marine Life SciencesOcean University of ChinaQingdao 266003China

The economic alga neopyropia,which holds significant value in China for its edibility and economic potential,harbors diverse epiphytic bacteria on its *** epiphytic bacteria on neopyropia yezoensis and neopyropia katadae,two nori species of neopyropia living at the same tidal level but with distinct physiological states and living habits,were investigated to understand the differences between them and the effects of epiphytic bacteria on their differential *** of 16S rRNA gene sequences and real-time quantitative PCR(qPCR)of thalli and seawater samples(n=24)revealed notable differences in microbial diversity and community structure between the two *** dominated the bacterial communities in association with ***,whereas Proteobacteria were predominant in *** Investigation of Communities by Reconstruction of Unobserved States(PICRUSt2)analysis revealed enriched genes that related to the ABC transport system,iron complex outer membrane receptor proteins,and proliferation in ***,whereas *** exhibited enrichment of genes that related to energy supply as well as cell wall and cell membrane *** results of qPCR indicate a higher abundance of epiphytic bacteria on surface of *** than those on surface of *** findings indicate that differences in the living environments of *** and *** may result in distinct structural composition and abundance of epiphytic bacteria on their surfaces,thereby conferring specific biological functionalities to each microbial community,and the epiphytic bacteria may shape the living habits of hosts to some *** study provided a basis for understanding the close association between surface microorganisms and algal bodies,and the physiological and ecological characteristics of nori species.

关键词： neopyropia yezoensis neopyropia katadae epiphytic bacteria 16 S rRNA quantitative PCR(qPCR)

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