Department of Biology, University of Fribourg, Route Albert-Gockel 3, 1700 Fribourg, Switzerland.
Department of Biology, University of Fribourg, Route Albert-Gockel 3, 1700 Fribourg, Switzerland; Present address: Agroécologie, AgroSupDijon, Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA), Université de Bourgogne Franche-Comté, 21000 Dijon, France.
Trends Plant Sci. 2017 Aug;22(8):652-660. doi: 10.1016/j.tplants.2017.05.008. Epub 2017 Jun 13.
Most plants entertain mutualistic interactions known as arbuscular mycorrhiza (AM) with soil fungi (Glomeromycota) which provide them with mineral nutrients in exchange for reduced carbon from the plant. Mycorrhizal roots represent strong carbon sinks in which hexoses are transferred from the plant host to the fungus. However, most of the carbon in AM fungi is stored in the form of lipids. The absence of the type I fatty acid synthase (FAS-I) complex from the AM fungal model species Rhizophagus irregularis suggests that lipids may also have a role in nutrition of the fungal partner. This hypothesis is supported by the concerted induction of host genes involved in lipid metabolism. We explore the possible roles of lipids in the light of recent literature on AM symbiosis.
大多数植物与土壤真菌（Glomeromycota）形成互利共生的关系，称为丛枝菌根（AM），真菌为植物提供矿物质营养，而植物则为真菌提供来自植物的减少的碳。菌根根代表强大的碳汇，其中己糖从植物宿主转移到真菌中。然而，丛枝菌根真菌中的大部分碳以脂质的形式储存。丛枝菌根真菌模式种 Rhizophagus irregularis 中不存在 I 型脂肪酸合酶（FAS-I）复合物，这表明脂质也可能在真菌伙伴的营养中发挥作用。这一假说得到了涉及脂质代谢的宿主基因的协同诱导的支持。我们根据 AM 共生关系的最新文献探讨了脂质的可能作用。
