期刊
FRONTIERS IN MOLECULAR BIOSCIENCES
卷 9, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fmolb.2022.967945
关键词
secondary metabolites; halophytic endophyte; Salinivibrio costicola; Suaeda maritima (L.) dumort.; polyhydroxybuthyrate (PHB)
资金
- National Research Foundation of Korea
- Ministry of Education, Science and Technology, Republic of Korea
- [NRF-2018R1A6A1A03023718]
- [NRF-2020R1A2C1012632]
In this study, a strain of Salinivibrio costicola was isolated from Suaeda maritima collected in Sinan, Republic of Korea, and its endophytic characteristics and metabolites were analyzed. The results showed that the strain produced polyhydroxybutyrate derivatives in the host plant, and the chemical structures and clustering relationships of these derivatives were elucidated.
In this study, the Salinivibrio costicola strain was isolated from Suaeda maritima (L.) Dumort. collected in Sinan, Republic of Korea. The endophytic characteristics of the Gram-negative bacterium S. costicola were verified with metagenomics sequencing of S. maritima. S. costicola was cultivated for 3 days in a liquid medium with 3.3% sea salt and analyzed the metabolites produced by the strain cultured in five different bacterial cultivation media. From the bacterial cultures, polyhydroxybutyrate derivatives were detected using high-resolution mass spectrometry, and three major compounds were isolated by high-performance liquid chromatography. The chemical structures of the compounds were elucidated using nuclear magnetic resonance and MS analyses. The relationship between the compounds was confirmed with Global Natural Product Social Molecular Networking, which showed clustering of the compounds. From the S. maritima extract, polyhydroxybutyrate derivatives produced by S. costicola were detected as being accumulated in the host plant.
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