Abstract. Maritime pine forests are a major ecosystem throughout the Portuguese coast and are severely affected by the invasion of Acacia longifolia. The presented study investigated the diversity of ectomycorrhizal fungi (ECM) of major plant species in these ecosystems to find possible links between Pinus pinaster, three native Cistaceae shrubs and the Acacia invasive species. We successfully identified 13 ECM fungal taxa. Within those, two species from the order Helotiales were found in all plant species, and over half of the fungal ECM species found in Pinus pinaster were also common to the Cistaceae shrubs. Network analysis points to the Cistaceae shrubs having a central role in these below-ground communities, therefore enforcing the idea that they are key to these communities and should not be underestimated. Our results also point to the evolving role of invasive plant species in the ecosystem dynamics in the rhizosphere, which host fungal species that are common to native plants, although it is not yet clear whether these fungal taxa are native or a consequence of the presence of Acacia longifolia.

中文翻译：

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菌根真菌是否在本地植物和<i>长叶金合欢</i>之间建立了地下联系？葡萄牙沿海沿海松林的案例研究

摘要。沿海松林是整个葡萄牙海岸的主要生态系统，受到长叶金合欢入侵的严重影响。所提出的研究调查了这些生态系统中主要植物物种的外生菌根真菌 (ECM) 的多样性，以寻找松树、三种原生 Cistaceae 灌木和金合欢入侵物种之间的可能联系。我们成功鉴定了 13 个 ECM 真菌类群。其中，在所有植物物种中都发现了 Helotiales 目的两个物种，在松树中发现的超过一半的真菌 ECM 物种在 Cistaceae 灌木中也很常见。网络分析表明 Cistaceae 灌木在这些地下群落中起着核心作用，因此强化了它们是这些群落的关键并且不应被低估的想法。