Effect of the epiphytic bacterium Bacillus sp. WPySW2 on the metabolism of Pyropia haitanensis

Journal of Applied Phycology
Yuqin XiongHaimin Chen

Abstract

A variety of different symbiotic microbial communities are harbored on the surface of seaweeds, the interactions of which depend upon nutritional exchanges between the microbes and the hosts. Metabolomic profiling is able to provide a comprehensive and unbiased snapshot of the metabolites associated with seaweed-microbe interactions. In this study, the relationships between phycosphere bacteria and the red alga Pyropia haitanensis were investigated on a metabolomic basis using gas chromatography-mass spectrometry, and the pathways of the interactions between the seaweed and its associated phycospheric microbes were revealed. Bacillus sp. WPySW2, one bacterial species isolated from the phycosphere of Pyropia species, had a significant influence on the metabolomic profile of the algae. Some of the intracellular metabolites such as phenylalanine, leucine, isoleucine, valine, proline, tyrosine, threonine, octadecanoic acid, hexadecanoic acid, and citric acid were downregulated in the thalli of P. haitanensis when it was co-cultured with Bacillus sp. WPySW2, while several special metabolites including melibiose, serine, glycerol-3-phosphate, galactosylglycerol, and alanine were upregulated. The results demonstrated that P. haitanens...Continue Reading

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Citations

Apr 29, 2021·Briefings in Functional Genomics·Zubaida P PatwaryScott F Cummins
Jun 12, 2021·Biotechnology Reports·Natalia Beatriz Comba GonzálezJosé Salvador Montaña Lara

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Datasets Mentioned

BETA
EU863221

Methods Mentioned

BETA
PCA
deamination
environmental stress

Software Mentioned

Cytoscape
Automatic Mass Spectral Deconvolution and Identification Syste...
xcmsSet
XCMS
Excel
R
Simca
Agilent GC / 5975 Data Analysis

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