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. 2022 Jun 9;13:924533. doi: 10.3389/fmicb.2022.924533

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Copyright © 2022 Zhang, Zhuang, Huang and Zhang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Identification of metabolites packaged in virus particles. (A) Purification of virions. The purity of purified GVE2 virions was examined with transmission electron microscopy. Scale bar, 100 nm. (B) GC-MS analysis of the metabolites extracted from the purified virions and the virus-infected bacteria. Geobacillus sp. E263 was infected by its bacteriophage GVE2. At 1 h post-infection, the bacteria were subjected to compound extraction. The compounds extracted from the purified GVE2 virions and the GVE2-infected E263 were analyzed by GC-MS. Relative abundance of the compounds was plotted with retention time in minute. (C) LC-MS analysis of the metabolites packaged in GVE2 virions. The compounds extracted from the purified GVE2 virions and the virus-infected bacteria were identified by LC-MS. (D) The compounds of GVE2 virions identified by GC-MS. The retention time was indicated in minutes. (E) The compounds of GVE2 virions identified by LC-MS. (F) The GC-MS analysis of the standards and the samples (the compounds from the purified GVE2 virions). The retention time was indicated in minutes. (G) The LC-MS analysis of the standards and the samples (the compounds from the purified GVE2 virions).