Volatiles from the ascomycete<i>Daldinia cf. childiae</i>(Hypoxylaceae), originating from China

Lauterbach, Lukas; Wang, Tao; Stadler, Marc; Dickschat, Jeroen S.

doi:10.1039/c9md00083f

Cited by 5 publications

(4 citation statements)

References 40 publications

(60 reference statements)

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“…Moreover, this study also resulted in the recognition of Muscodor/Induratia and the related genus Emarcea as a unique phylogenetic lineage for which the new family Induratiaceae has been erected [117]. Interestingly, these fungi were never studied for the production of nonvolatile secondary metabolites and even the identity of the compounds that were detected by database aided GC-MS analytics often remains dubious [103,[118][119][120]. The Induratiaceae certainly deserve further studies of their secondary metabolome, including the identification of metabolites that show pronounced production in dual antagonist cultures.…”

Section: Benzenoids and Lactones From Xylariaceae (Fig 7)mentioning

confidence: 99%

Recent progress in biodiversity research on the Xylariales and their secondary metabolism

Becker

Stadler

2020

J Antibiot

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The families Xylariaceae and Hypoxylaceae (Xylariales, Ascomycota) represent one of the most prolific lineages of secondary metabolite producers. Like many other fungal taxa, they exhibit their highest diversity in the tropics. The stromata as well as the mycelial cultures of these fungi (the latter of which are frequently being isolated as endophytes of seed plants) have given rise to the discovery of many unprecedented secondary metabolites. Some of those served as lead compounds for development of pharmaceuticals and agrochemicals. Recently, the endophytic Xylariales have also come in the focus of biological control, since some of their species show strong antagonistic effects against fungal and other pathogens. New compounds, including volatiles as well as nonvolatiles, are steadily being discovered from these ascomycetes, and polythetic taxonomy now allows for elucidation of the life cycle of the endophytes for the first time. Moreover, recently high-quality genome sequences of some strains have become available, which facilitates phylogenomic studies as well as the elucidation of the biosynthetic gene clusters (BGC) as a starting point for synthetic biotechnology approaches. In this review, we summarize recent findings, focusing on the publications of the past 3 years.

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Section: Benzenoids and Lactones From Xylariaceae (Fig 7)mentioning

confidence: 99%

Recent progress in biodiversity research on the Xylariales and their secondary metabolism

Becker

Stadler

2020

J Antibiot

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“…Moreover, 5-hydroxy-4,6-dimethyloctan-3-one isolated from Daldinia clavata as well as 5-hydroxy-2-methyl-4-chromanone isolated from Daldinia cf. childiae were evaluated to possess a high degree of antimicrobial activity (Wang et al, 2018;Lauterbach et al, 2019).…”

Section: Strawberry Quality After Treating With Vocs Produced By the Endophytic Isolate Bp11 Or Elemicinmentioning

confidence: 99%

Antifungal properties of volatile organic compounds produced byDaldinia eschscholtziiMFLUCC 19-0493 isolated fromBarleria prionitisleaves againstColletotrichum acutatumand its post-harvest infections on strawberry fruits

Khruengsai

Pripdeevech

Tanapichatsakul

et al. 2021

PeerJ

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Fungal endophytes are microorganisms living symbiotically with a host plant. They can produce volatile organic compounds (VOCs) that have antimicrobial activity. This study aimed to isolate endophytic fungi from Barleria prionitis plants grown in Thailand and to investigate the antifungal properties of their VOCs against Colletotrichum acutatum, a causal agent of anthracnose disease on post-harvest strawberry fruits. A total of 34 endophytic fungi were isolated from leaves of B. prionitis. The VOCs produced from each individual isolate were screened for their antifungal activity against C. acutatum using a dual-culture plate method. From this in vitro screening experiment, the VOCs produced by the endophytic isolate BP11 were found to have the highest inhibition percentage (80.3%) against the mycelial growth of C. acutatum. The endophytic isolate BP11 was molecularly identified as Daldinia eschscholtzii MFLUCC 19-0493. This strain was then selected for an in vivo experiment. Results from the in vivo experiment indicated that the VOCs produced by D. eschscholtzii MFLUCC 19-0493 were able to inhibit infections by C. acutatum on organic fresh strawberry fruits with an average inhibition percentage of 72.4%. The quality of the pathogen-inoculated strawberry fruits treated with VOCs produced by D. eschscholtzii MFLUCC 19-0493 was evaluated. Their fruit firmness, total soluble solids, and pH were found to be similar to the untreated strawberry fruits. Solid phase microextraction-gas chromatographic-mass spectrometric analysis of the VOCs produced by D. eschscholtzii MFLUCC 19-0493 led to the detection and identification of 60 compounds. The major compounds were elemicin (23.8%), benzaldehyde dimethyl acetal (8.5%), ethyl sorbate (6.8%), methyl geranate (6.5%), trans-sabinene hydrate (5.4%), and 3,5-dimethyl-4-heptanone (5.1%). Each major compound was tested for its antifungal activity against C. acutatum using the in vitro assay. While all these selected VOCs showed varying degrees of antifungal activity, elemicin was found to possess the strongest antifungal activity. This work suggests that D. eschscholtzii MFLUCC 19-0493 could be a promising natural preservative for controlling C. acutatum associated anthracnose disease in strawberry fruits during the post-harvest period.

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“…16 However, due to discrepancies in nomenclature, D childiae has been used interchangeably with D concentrica, leading some publications on D childiae to be erroneously categorized under D concentrica. [18][19][20] Daldinia concentrica is a European species and does not appear to be endemic to North America. 15 The crusty outer stroma of D concentrica releases purple pigments when finely ground and soaked in potassium hydroxide, while the D childiae stroma releases only brown pigments.…”

Section: Introductionmentioning

confidence: 99%

“…Although typically regarded as an inedible mushroom, historically it was believed that the fungus could ward off stomach cramping, thus affording its common name, ‘Cramp Balls’ 16 . However, due to discrepancies in nomenclature, D childiae has been used interchangeably with D concentrica , leading some publications on D childiae to be erroneously categorized under D concentrica 18‐20 . Daldinia concentrica is a European species and does not appear to be endemic to North America 15 .…”

Section: Introductionmentioning

confidence: 99%

Key Odorants from Daldinia childiae

Moore

Wickramasinghe

Munafo

2020

Flavour & Fragrance J

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An investigation to identify odorants responsible for a pleasant woody perfumelike aroma produced in the fermentation broth of the fungus Daldinia childiae (JD Rogers & YM Ju) was conducted. Thirty odorants were identified from 30-day-old fermentations employing solvent-assisted flavour evaporation (SAFE) and aroma extract dilution analysis (AEDA). Eleven odorants with flavour dilution (FD) factors ≥16 were quantitated using stable isotope dilution assays (SIDA), and odour activity values (OAV) determined. Odorants with the highest OAVs included guai-11-en-10-ol (woody, OAV 102689), 1-octen-3-one (mushroom, OAV 9025), sotolon (maple, OAV 458), and (2E)-non-2-enal (fatty, OAV 70). An odour simulation model formulated using odorants with OAV ≥ 1 closely matched the sensory attributes of natural D childiae fermentations. Guai-11-en-10-ol, a component of patchouli essential oil used widely in perfumery and cosmetics, was identified as the key impact odorant driving the pleasant woody perfume-like aroma in D childiae fermentations. The findings from this investigation lay the groundwork for future studies on D childiae as a source for the sustainable biotechnological production of guai-11-en-10-ol with potential applications in the flavour and fragrance industry.

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Volatiles from the ascomyceteDaldinia cf. childiae(Hypoxylaceae), originating from China

Abstract: The volatiles from an isolate of the fungus Daldinia cf. childiae, obtained from a specimen collected in China, were collected by use of a closed-loop stripping apparatus and analysed by GC-MS.

Cited by 5 publications

References 40 publications

Recent progress in biodiversity research on the Xylariales and their secondary metabolism

Recent progress in biodiversity research on the Xylariales and their secondary metabolism

Antifungal properties of volatile organic compounds produced byDaldinia eschscholtziiMFLUCC 19-0493 isolated fromBarleria prionitisleaves againstColletotrichum acutatumand its post-harvest infections on strawberry fruits

Key Odorants from Daldinia childiae

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