Bacterial Volatile Compounds as Mediators of Airborne Interactions 2020
DOI: 10.1007/978-981-15-7293-7_3
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Structural Diversity of Bacterial Volatiles

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Cited by 8 publications
(12 citation statements)
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“…These key compounds all originate from primary metabolic pathways ( Weisskopf et al, 2021 ). 3-methylbutyric acid is derived from the metabolism of amino acids (leucine) while acetic acid, ethyl 2-methylbutyrate and acetoin arise from different stages of the fermentation process in glucose metabolism ( Schulz et al, 2020 ; Weisskopf et al, 2021 ). The different primary metabolic pathways from which these compounds are derived are reflected in Figure 3 , as in the glucose-free LB medium, acetic acid, ethyl 2-methylbutyrate and acetoin abundances are significantly lower than abundances observed in TSB and BHI while 3-methylbutyric acid emission was comparable across the media due to presence of amino acid substrates in all media.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…These key compounds all originate from primary metabolic pathways ( Weisskopf et al, 2021 ). 3-methylbutyric acid is derived from the metabolism of amino acids (leucine) while acetic acid, ethyl 2-methylbutyrate and acetoin arise from different stages of the fermentation process in glucose metabolism ( Schulz et al, 2020 ; Weisskopf et al, 2021 ). The different primary metabolic pathways from which these compounds are derived are reflected in Figure 3 , as in the glucose-free LB medium, acetic acid, ethyl 2-methylbutyrate and acetoin abundances are significantly lower than abundances observed in TSB and BHI while 3-methylbutyric acid emission was comparable across the media due to presence of amino acid substrates in all media.…”
Section: Discussionmentioning
confidence: 99%
“…Growth parameters such as growth media ( Jenkins and Bean, 2019 , 2020 ), growth phase ( Filipiak et al, 2012b ; Chen et al, 2016 ), oxygen content ( Insam and Seewald, 2010 ), temperature ( Misztal et al, 2018 ) and pH ( Schulz-Bohm et al, 2017 ), all influence microbial volatilomes. Another less studied factor in the overall variation seen across the volatilomes of microbial species is the occurrence of strain-level specificity in volatilomic emission within a given species ( Schulz et al, 2020 ; Weisskopf et al, 2021 ). In addition to this, the variation in sampling [SPME ( Timm et al, 2018 ; Fitzgerald et al, 2020 ), thermal desorption tubes ( Filipiak et al, 2012a , b ), direct syringe ( Ashrafi et al, 2018a , b )] and analytical techniques [gas chromatography–mass spectrometry (GC-MS) ( Filipiak et al, 2012b ; Timm et al, 2018 ; Fitzgerald et al, 2020 ), selected ion-flow-tube (SIFT) MS ( Shestivska et al, 2015 ), proton transfer reaction (PTR) MS ( Bunge et al, 2008 )] employed across the field also have a direct influence on the VOC profiles reported in the literature.…”
Section: Introductionmentioning
confidence: 99%
“…The collection and measurement of microbially-derived volatile organic compounds (mVCs) shows promise as a non-destructive, surrogate measurement of in situ microbial metabolism ( Netzker et al, 2020 ). These mVCs are produced by a broad range of biosynthetic pathways (primary metabolism, fermentation, fatty acid biosynthesis) which gives rise to high structural diversity ( Schulz et al, 2020 ; Weisskopf et al, 2021 ). Identification of different mVCs can be made through comparison to existing databases of microbial primary and secondary metabolisms (e.g., KEGG).…”
Section: Development and Implementation Of Novel Toolsmentioning
confidence: 99%
“…For this reason, in order to obtain comprehensive data for a specific microbe or microbial group, it is necessary to track species- and strain-level volatilomic diversity across the genus. Many metabolites are commonly emitted across microbial species [ 8 ]; however, the whole array of compounds that are emitted, and the abundances by which they are emitted are species-specific and are collectively referred to as its volatilome. The composition of volatilomes depends on multiple factors, such as nutritional substrates [ 8 , 9 , 10 ], strain-to-strain metabolic variation [ 11 , 12 ], growth phase of cells [ 13 ], and pH [ 14 ].…”
Section: Introductionmentioning
confidence: 99%
“…Many metabolites are commonly emitted across microbial species [ 8 ]; however, the whole array of compounds that are emitted, and the abundances by which they are emitted are species-specific and are collectively referred to as its volatilome. The composition of volatilomes depends on multiple factors, such as nutritional substrates [ 8 , 9 , 10 ], strain-to-strain metabolic variation [ 11 , 12 ], growth phase of cells [ 13 ], and pH [ 14 ]. As a result, broad characterisation of microbial volatilomes is one of the major challenges of the field.…”
Section: Introductionmentioning
confidence: 99%