Exploration of Fungal Metabolic Interactions Using Imaging Mass Spectrometry on Nanostructured Silicon

Pi Yu Chen, Chi Ying Hsieh, Chao Jen Shih, Yuan Jing Lin, Chia Wen Tsao, Yu Liang Yang

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Application of matrix-assisted laser desorption/ionization imaging mass spectrometry to microbiology and natural product research has opened the door to the exploration of microbial interactions and the consequent discovery of new natural products and their functions in the interactions. However, several drawbacks of matrix-assisted laser desorption/ionization imaging mass spectrometry have limited its application especially to complicated and uneven microbial samples. Here, we applied nanostructured silicon as a substrate for surface-assisted laser desorption/ionization mass spectrometry for microbial imaging mass spectrometry to explore fungal metabolic interactions. We chose Phellinus noxius and Aspergillus strains to evaluate the potential of microbial imaging mass spectrometry on nanostructured silicon because both fungi produce a dense mass of aerial mycelia, which is known to complicate the collection of high-quality imaging mass spectrometry data. Our simple and straightforward sample imprinting method and low background interference resulted in an efficient analysis of small metabolites from the complex microbial interaction samples.

Original languageEnglish
Pages (from-to)1527-1533
Number of pages7
JournalJournal of Natural Products
Volume81
Issue number7
DOIs
StatePublished - 27 Jul 2018

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