The factors shaping endophytic fungal assemblages in reproductive organs have been less evaluated than in vegetative organs. Here, the temporal dynamics of fungal endophytes in inflorescences and fruits of olive tree cultivars with contrasting anthracnose susceptibilities was assessed, starting before flowers open until fruit ripening. Fungal diversity assessed by rRNA sequencing of cultivable isolates revealed a higher richness and abundance of endophytes in inflorescences than in fruits. Endophytes from Sordariomycetes were dominant in inflorescences, while in fruits they were from Dothideomycetes. The overall assemblages of inflorescences and fruits were shaped mainly by the plant organ, followed by the phenological stage and lastly, by the plant cultivar. The importance of cultivar as a shaping factor varied according to the plant organ, being only significant in inflorescence-associated endophytes. A set of fungal taxa were positively associated with a particular cultivar and phenological stage, likely contributing to the plant anthracnose resistance.

与生殖器官相比，对生殖器官内生真菌组合的形成因素的评估较少。在这里，从花开放到果实成熟前，评估了炭疽病对橄榄树品种的花序和果实中真菌内生菌的时空动态。通过可培养分离株的rRNA测序评估的真菌多样性显示，与水果相比，花序中内生菌的丰富度和丰度更高。来自Sordariomycetes的内生菌在花序中占优势，而在果实中则来自Dothideomycetes。花序和果实的整体组合主要由植物器官形成，然后由物候阶段决定，最后由植物品种决定。栽培品种作为塑造因子的重要性因植物器官而异，仅在与花序相关的内生植物中有意义。一组真菌分类群与特定的品种和物候期呈正相关，可能有助于植物炭疽病的抵抗。