Evolution of plant heterotrophy from autotrophy in plant-arbuscular mycorrhizal fungi mutualistic systems.

在本研究中，我们重点关注真菌异养植物-丛枝菌根真菌相互作用中的植物-真菌关系、伙伴关系变化以及碳转移的生理机制，并对植物异养进化进行了全面分析。分子鉴定表明，真菌异养植物和龙胆具有A类球囊菌的菌根真菌，在一些光合植物中也发现了相同的真菌，尤其是定殖率较高的麦冬科植物。菌类异养植物和G的菌根真菌的碳氢化合物转运蛋白基因的部分序列。佐林格里没有与营养模式相关的分化。然而，异养植物和自养植物之间的基因表达水平可能存在差异。

In this study, we focused on plant-fungal relationships, partnership changes, and physiological mechanisms of carbon transfer in myco-heterotrophic plant-arbuscular mycorrhizal fungi interactions and conducted comprehensive analyses of the evolution of heterotrophy in plants. Molecular identifications showed that myco-heterotrophic plants and Gentiana zollingeri have mycorrhizal fungi of Glomus group A and the same fungi were found from some photosynthetic plant, especially plants belonging to Ophioglossaceae with high colonization rates. Partial sequences of hydrocarbon transporter genes from mycorrhizal fungi of myco-heterotrophic plants andG. zollingeri had no differentiations associated with trophic modes. However, there were possible differentiations in expression level of the genes between heterotrophic and autotrophic plants.