Distributed across both the tropical Atlantic and Pacific oceans, the seagrass Halophilia ovalis stabilizes coastal sediment, thereby preventing shoreline erosion and is also an important food source for megaherbivores such as dugongs. However, seagrass meadows globally are under severe duress due to both climate change and anthropogenic activities. We characterized the mycobiome of Halophilia ovalis at seven sites in the Malay Peninsula using ITS1 rDNA amplicon sequences and investigated differences in fungal community structure. We found that geographic location was a significant factor shaping fungal communities and that marine sediment harboured significantly higher diversity when compared to H. ovalis leaves, roots and rhizomes. Taken together, it is likely that locality rather than specific plant structure determines fungal community structure in H. ovalis. Because the plant mycobiome is known to exert a strong effect on plant health, to maximize the success of future seagrass transplantation and restoration work we propose that these efforts consider the importance of seagrass mycobiomes at all stages.

中文翻译：

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马来半岛海草嗜盐藻真菌群落的生物地理结构

海草嗜盐藻分布在热带大西洋和太平洋，稳定沿海沉积物，从而防止海岸线侵蚀，也是儒艮等大型食草动物的重要食物来源。然而，由于气候变化和人为活动，全球海草草甸正处于严重的胁迫之下。我们使用 ITS1 rDNA 扩增子序列对马来半岛七个地点的嗜盐菌的真菌生物群进行了表征，并研究了真菌群落结构的差异。我们发现地理位置是塑造真菌群落的重要因素，与H. ovalis相比，海洋沉积物具有显着更高的多样性叶、根和根茎。综上所述，很可能是地点而不是特定的植物结构决定了椭圆菌中的真菌群落结构。因为已知植物菌群对植物健康产生强烈影响，为了最大限度地提高未来海草移植和恢复工作的成功，我们建议这些努力考虑海草菌群在各个阶段的重要性。