Sniffing fungi - phenotyping of volatile chemical diversity in Trichoderma species

The New Phytologist
Yuan GuoMaaria Rosenkranz

Abstract

Volatile organic compounds (VOCs) play vital roles in the interaction of fungi with plants and other organisms. A systematic research on the global fungal VOC profiles is still lacking, though it is a prerequisite for elucidating the mechanisms of VOCs-mediated interactions. Here we present a versatile system enabling a high-throughput screening of fungal VOCs under controlled temperature. In a proof-of-principle experiment, we characterized the volatile metabolic fingerprints of four Trichoderma spp. over 48h growth period. The developed platform allows automated and fast detection of VOCs from up to 14 simultaneously growing fungal cultures in real-time. The comprehensive analysis of fungal odors is achieved by employing proton transfer reaction - time of flight - mass spectrometry and gas chromatography-mass spectrometry. The data mining strategy based on multivariate data analysis and machine learning allows uncovering the volatile metabolic fingerprints. Our data revealed dynamic, development-dependent and extremely species-specific VOC profiles from the biocontrol genus Trichoderma. The two mass spectrometric approaches were highly complementary to each other, together revealing a novel, dynamic view to the fungal VOC rel...Continue Reading

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Citations

Jun 5, 2021·Communications Biology·Yuan GuoMaaria Rosenkranz

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