
Diversity, Год журнала: 2025, Номер 17(4), С. 249 - 249
Опубликована: Март 30, 2025
Understanding soil microbial community assembly in endangered mangrove ecosystems is crucial for ecological conservation. This study investigated the diversity and drivers of microbiomes across Barringtonia racemosa communities (pure: T1; associated: T2, T3) China’s Leizhou Peninsula, using SMRT sequencing phospholipid fatty acid analysis. The results reveal that pure B. (T1) harbored highest (Chao1: 2980 bacteria, 14,378 fungal OTUs), with Pseudomonadota (37.6%) Ascomycota (52.6%) as dominant phyla. Fungal exhibited 3.2-fold higher β-diversity variability than bacteria (Bray–Curtis; p < 0.01). Redundancy analysis identified organic carbon (SOC), available nitrogen (SAN), leaf manganese primary drivers, collectively explaining 72.4% variation (p = 0.003). Notably, showed an elevated SOC (74.3 mg/kg) fungal: bacterial ratio (0.19 vs. 0.13–0.14 associated communities), indicating dominance carbon-rich sediments. Conversely, rice field controls displayed distinct SAP/SAK patterns reflecting agricultural impacts. These findings demonstrate structure differentially regulates assemblages more strongly communities, providing critical insights restoration through microbial-informed management.
Язык: Английский