Margesin Rosa, Ludwikowski Thomas Marek, Kutzner Andrea, Wagner Andreas Otto
Department of Microbiology, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria.
Microorganisms. 2022 Feb 26;10(3):515. doi: 10.3390/microorganisms10030515.
The contribution of cold-adapted yeasts to the emerging field of lignin biovalorization has not yet been studied. The red-pigmented basidiomycetous yeast strain DBVPG 10655 was examined for its potential to degrade five selected lignin-derived aromatic monomers (syringic acid, -coumaric acid, 4-hydroxybenzoic acid, ferulic acid, and vanillic acid). The strain utilized -coumaric acid, 4-hydroxybenzoic acid, and ferulic acid not only as the sole carbon source; full biodegradation occurred also in mixtures of multiple monomers. Vanillic acid was not utilized as the sole carbon source, but was degraded in the presence of -coumaric acid, 4-hydroxybenzoic acid, and ferulic acid. Syringic acid was utilized neither as the sole carbon source nor in mixtures of compounds. Biodegradation of lignin-derived aromatic monomers was detected over a broad temperature range (1-25 °C), which is of ecological significance and of biotechnological relevance.
冷适应酵母对新兴的木质素生物转化领域的贡献尚未得到研究。对红色色素担子菌酵母菌株DBVPG 10655降解五种选定的木质素衍生芳香单体（丁香酸、对香豆酸、4-羟基苯甲酸、阿魏酸和香草酸）的潜力进行了研究。该菌株不仅将对香豆酸、4-羟基苯甲酸和阿魏酸用作唯一碳源；在多种单体的混合物中也发生了完全生物降解。香草酸未被用作唯一碳源，但在对香豆酸、4-羟基苯甲酸和阿魏酸存在的情况下被降解。丁香酸既未被用作唯一碳源，也未在化合物混合物中被利用。在较宽的温度范围（1-25°C）内检测到了木质素衍生芳香单体的生物降解，这具有生态意义和生物技术相关性。
