Monoterpenoids constitute a significant subclass of terpenoids, known for their volatility and strong aromatic properties. These compounds are extensively employed across multiple sectors, including pharmaceuticals, foods, flavors, cosmetics, agriculture, and energy, due to their diverse pharmacological and biological activities. Currently, monoterpenoids are primarily sourced from plant extracts or chemical synthesis. However, low yield and high cost associated with plant extracts as well as low purity and high energy consumption with chemical synthesis cannot address the growing demand. As a result, the heterologous synthesis of monoterpenoids using microorganisms presents an alternative pathway that is efficient, sustainable, and eco-friendly. Yeasts show promise as hosts for monoterpenoid biosynthesis due to their fast growth, inherent mevalonate (MVA) pathway, and robust post-translational modification systems. Currently, the industrial production of the artemisinin precursor artemisinic acid and the sesquiterpene farnesene has been achieved using Saccharomyces cerevisiae. Advances in synthetic biology have enabled the construction of microbial cell factories for monoterpenoid synthesis. However, challenges remain in scaling up production due to limited precursor availability and monoterpene cytotoxicity. This review first introduces the foundational pathways of monoterpenoid biosynthesis in yeast, followed by discussion on engineering strategies and advancements in yeast-mediated monoterpenoid synthesis, which include enhancing the supply and utilization of acetyl coenzyme A and geranyl pyrophosphate (GPP), regulating and modifying key enzymes such as GPP synthase and monoterpene synthase, optimizing subcellular organelle localization and compartmentalization of MVA pathway genes and monoterpenoid synthases, and implementing exocytosis and tolerance engineering to mitigate monoterpene cytotoxicity. Future directions and strategies to overcome bottlenecks in microbial synthesis are explored to guide research in yeast synthesis of monoterpenoids.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |