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Thorn RG, Banwell A, Pham TH, Vidal NP, Manful CF, Nadeem M, Ivanov AG, Szyszka Mroz B, Bonneville MB, Hüner NPA, Piercey-Normore MD, Thomas R. Identification and analyses of the chemical composition of a naturally occurring albino mutant chanterelle. Sci Rep 2021; 11:20590. [PMID: 34663853 PMCID: PMC8523663 DOI: 10.1038/s41598-021-99787-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 09/28/2021] [Indexed: 11/09/2022] Open
Abstract
White chanterelles (Basidiomycota), lacking the orange pigments and apricot-like odour of typical chanterelles, were found recently in the Canadian provinces of Québec (QC) and Newfoundland & Labrador (NL). Our phylogenetic analyses confirmed the identification of all white chanterelles from NL and QC as Cantharellus enelensis; we name these forma acolodorus. We characterized carotenoid pigments, lipids, phenolics, and volatile compounds in these and related chanterelles. White mutants of C. enelensis lacked detectable β-carotene, confirmed to be the primary pigment of wild-type, golden-orange individuals, and could also be distinguished by their profiles of fatty acids and phenolic acids, and by the ketone and terpene composition of their volatiles. We detected single base substitutions in the phytoene desaturase (Al-1) and phytoene synthase (Al-2) genes of the white mutant, which are predicted to result in altered amino acids in their gene products and may be responsible for the loss of β-carotene synthesis in that form.
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Affiliation(s)
- R Greg Thorn
- Department of Biology, University of Western Ontario, 1151 Richmond St. N., London, ON, N6A 5B7, Canada.
| | - Alicia Banwell
- Department of Biology, University of Western Ontario, 1151 Richmond St. N., London, ON, N6A 5B7, Canada
| | - Thu Huong Pham
- School of Science and the Environment, Grenfell Campus, Memorial University, 20 University Drive, Corner Brook, NL, A2H 5G4, Canada
| | - Natalia P Vidal
- School of Science and the Environment, Grenfell Campus, Memorial University, 20 University Drive, Corner Brook, NL, A2H 5G4, Canada.,Department of Food Science, iFOOD Multidisciplinary Center, Aarhus University, Agro Food Park 48, 8200, Aarhus N, Denmark
| | - Charles Felix Manful
- School of Science and the Environment, Grenfell Campus, Memorial University, 20 University Drive, Corner Brook, NL, A2H 5G4, Canada
| | - Muhammad Nadeem
- School of Science and the Environment, Grenfell Campus, Memorial University, 20 University Drive, Corner Brook, NL, A2H 5G4, Canada
| | - Alexander G Ivanov
- Department of Biology, University of Western Ontario, 1151 Richmond St. N., London, ON, N6A 5B7, Canada.,Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev str. Bl. 21, 1113, Sofia, Bulgaria
| | - Beth Szyszka Mroz
- Department of Biology, University of Western Ontario, 1151 Richmond St. N., London, ON, N6A 5B7, Canada
| | - Michael B Bonneville
- Department of Biology, University of Western Ontario, 1151 Richmond St. N., London, ON, N6A 5B7, Canada
| | - Norman Peter Andrew Hüner
- Department of Biology, University of Western Ontario, 1151 Richmond St. N., London, ON, N6A 5B7, Canada
| | - Michele D Piercey-Normore
- School of Science and the Environment, Grenfell Campus, Memorial University, 20 University Drive, Corner Brook, NL, A2H 5G4, Canada
| | - Raymond Thomas
- School of Science and the Environment, Grenfell Campus, Memorial University, 20 University Drive, Corner Brook, NL, A2H 5G4, Canada
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