Response of the sesquiterpene synthesis in submerged cultures of the Basidiomycete Tyromyces floriformis to the medium composition

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Authors

  • Miriam Grosse
  • Elisa Strauss
  • Ulrich Krings
  • Ralf G. Berger

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Original languageEnglish
Pages (from-to)885-894
Number of pages10
JournalMYCOLOGIA
Volume111
Issue number6
Publication statusPublished - 17 Oct 2019

Abstract

Tyromyces floriformis, a potent fungal sesquiterpene producer, was grown Cerrena unicolor, as a model organism in submerged culture to search for chemicals affecting sesquiterpene biosynthesis in vitro. Thirty-one sesquiterpenes and sesquiterpenoids were identified in the supernatant, among them the fruity α-ylangene as the main volatile. Additives, such as some polysaccharides or lipids, did not affect the qualitative product spectrum but strongly affected the quantitative synthesis. Rye arabinoxylan and other polysaccharides, such as chitin, starch, and agarose, almost blocked the synthesis of α-ylangene. Single addition of the building blocks of arabinoxylan, arabinose, xylose, or ferulic acid showed no inhibitory effect, whereas 0.05% (w/v) 32-α-l-arabinofuranosyl-xylobiose and larger oligosaccharides resulted in a significant suppression. In contrast, addition of acetyl donors boosted the α-ylangene concentration by 1 order of magnitude up to >40 mg L−1. Both increased as well as decreased α-ylangene concentrations correlated with the intracellular sesquiterpene cyclase activity. Similar experiments using submerged cultured Cerrena unicolor, Postia placenta, and Coprinopsis cinerea showed that the additives affected fungal sesquiterpenoid synthesis differently. Whereas the addition of acetyl donors boosted the synthesis in all biphasic cultures, it was inhibited by polysaccharides in fungi preferably interacting with lignified plants. In contrast, Cerrena unicolor, known for a symbiotic lifestyle with wasps, responded by forming higher concentrations of the possibly insect-attracting sesquiterpenes.

Keywords

    Arabinoxylan, sesquiterpene synthesis, tegosoft, Tyromyces floriformis, volatilome, α-ylangene

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Cite this

Response of the sesquiterpene synthesis in submerged cultures of the Basidiomycete Tyromyces floriformis to the medium composition. / Grosse, Miriam; Strauss, Elisa; Krings, Ulrich et al.
In: MYCOLOGIA, Vol. 111, No. 6, 17.10.2019, p. 885-894.

Research output: Contribution to journalArticleResearchpeer review

Grosse M, Strauss E, Krings U, Berger RG. Response of the sesquiterpene synthesis in submerged cultures of the Basidiomycete Tyromyces floriformis to the medium composition. MYCOLOGIA. 2019 Oct 17;111(6):885-894. doi: 10.1080/00275514.2019.1668740
Grosse, Miriam ; Strauss, Elisa ; Krings, Ulrich et al. / Response of the sesquiterpene synthesis in submerged cultures of the Basidiomycete Tyromyces floriformis to the medium composition. In: MYCOLOGIA. 2019 ; Vol. 111, No. 6. pp. 885-894.
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title = "Response of the sesquiterpene synthesis in submerged cultures of the Basidiomycete Tyromyces floriformis to the medium composition",
abstract = "Tyromyces floriformis, a potent fungal sesquiterpene producer, was grown Cerrena unicolor, as a model organism in submerged culture to search for chemicals affecting sesquiterpene biosynthesis in vitro. Thirty-one sesquiterpenes and sesquiterpenoids were identified in the supernatant, among them the fruity α-ylangene as the main volatile. Additives, such as some polysaccharides or lipids, did not affect the qualitative product spectrum but strongly affected the quantitative synthesis. Rye arabinoxylan and other polysaccharides, such as chitin, starch, and agarose, almost blocked the synthesis of α-ylangene. Single addition of the building blocks of arabinoxylan, arabinose, xylose, or ferulic acid showed no inhibitory effect, whereas 0.05% (w/v) 32-α-l-arabinofuranosyl-xylobiose and larger oligosaccharides resulted in a significant suppression. In contrast, addition of acetyl donors boosted the α-ylangene concentration by 1 order of magnitude up to >40 mg L−1. Both increased as well as decreased α-ylangene concentrations correlated with the intracellular sesquiterpene cyclase activity. Similar experiments using submerged cultured Cerrena unicolor, Postia placenta, and Coprinopsis cinerea showed that the additives affected fungal sesquiterpenoid synthesis differently. Whereas the addition of acetyl donors boosted the synthesis in all biphasic cultures, it was inhibited by polysaccharides in fungi preferably interacting with lignified plants. In contrast, Cerrena unicolor, known for a symbiotic lifestyle with wasps, responded by forming higher concentrations of the possibly insect-attracting sesquiterpenes.",
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note = "Funding Information: We are grateful to the Lower Saxony Ministry of Science and Arts for support through the research cluster “Bioeconomy 2.0: Innovation potentials of side-streams of food processing.” The authors thank Franziska Ersoy for careful reading of the manuscript. All data are available upon request from the corresponding author.",
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T1 - Response of the sesquiterpene synthesis in submerged cultures of the Basidiomycete Tyromyces floriformis to the medium composition

AU - Grosse, Miriam

AU - Strauss, Elisa

AU - Krings, Ulrich

AU - Berger, Ralf G.

N1 - Funding Information: We are grateful to the Lower Saxony Ministry of Science and Arts for support through the research cluster “Bioeconomy 2.0: Innovation potentials of side-streams of food processing.” The authors thank Franziska Ersoy for careful reading of the manuscript. All data are available upon request from the corresponding author.

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N2 - Tyromyces floriformis, a potent fungal sesquiterpene producer, was grown Cerrena unicolor, as a model organism in submerged culture to search for chemicals affecting sesquiterpene biosynthesis in vitro. Thirty-one sesquiterpenes and sesquiterpenoids were identified in the supernatant, among them the fruity α-ylangene as the main volatile. Additives, such as some polysaccharides or lipids, did not affect the qualitative product spectrum but strongly affected the quantitative synthesis. Rye arabinoxylan and other polysaccharides, such as chitin, starch, and agarose, almost blocked the synthesis of α-ylangene. Single addition of the building blocks of arabinoxylan, arabinose, xylose, or ferulic acid showed no inhibitory effect, whereas 0.05% (w/v) 32-α-l-arabinofuranosyl-xylobiose and larger oligosaccharides resulted in a significant suppression. In contrast, addition of acetyl donors boosted the α-ylangene concentration by 1 order of magnitude up to >40 mg L−1. Both increased as well as decreased α-ylangene concentrations correlated with the intracellular sesquiterpene cyclase activity. Similar experiments using submerged cultured Cerrena unicolor, Postia placenta, and Coprinopsis cinerea showed that the additives affected fungal sesquiterpenoid synthesis differently. Whereas the addition of acetyl donors boosted the synthesis in all biphasic cultures, it was inhibited by polysaccharides in fungi preferably interacting with lignified plants. In contrast, Cerrena unicolor, known for a symbiotic lifestyle with wasps, responded by forming higher concentrations of the possibly insect-attracting sesquiterpenes.

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KW - sesquiterpene synthesis

KW - tegosoft

KW - Tyromyces floriformis

KW - volatilome

KW - α-ylangene

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U2 - 10.1080/00275514.2019.1668740

DO - 10.1080/00275514.2019.1668740

M3 - Article

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