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热带海草的植物生长和发育确定了根茎沉积及其相关微生物群落

Xia Zhang¹, Yunchao Wu¹, Songlin Liu²

¹Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China; Guangdong Provincial Key Laboratory of Applied Marine Biology, Guangzhou 510301, China.

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|December 27, 2023

概括

海草根排泄物季节性地变化,影响树根球微生物. 这些微生物群落,包括细菌和真菌,在关键发育阶段支持海草生长和营养循环.

科学领域:

海洋生物学海洋生物学
微生物生态学微生物生态学
植物科学植物科学

背景情况:

海草是重要的海洋生态系统工程师.
草圈相互作用对于海草的健康和生产力至关重要.
了解海草根层的季节性动态对于海洋生态系统管理至关重要.

研究的目的:

为了研究Enhalus acoroides根排泄的季节性变化.
分析海草根层中细菌和真菌群落的结构.
确定根排泄物和海草生长阶段对微生物组合的影响.

主要方法:

在南中国海,季节性采样Enhalus acoroides.
根排液的量化和表征,包括溶解有机物 (DOM).
Illumina NovaSeq测序用于细菌和真菌社区分析.

主要成果:

根排泄的数量和质量因季节而异,春季和夏季的排泄量和生物可用性较高.
微生物多样性和组成受到根排泄物特征和海草生物质的显著影响.
特定的细菌群 (如Ruegeria,Sulfurovum) 和真菌类 (如Astraeus,Alternaria) 与根排泄和植物发育有关.

结论:

恩哈卢斯 (Enhalus acoroides) 根排泄物在整个发育阶段发生变化,塑造了树根球微生物群.
根排液的季节性变化在支持海草生长和营养循环方面发挥着至关重要的作用.
已识别的微生物种群可能有助于海草生态系统中重要的生物地球化学过程.

关键词:

微生物社区的微生物社区.植物生长植物生长里索斯菲尔是什么意思里索斯菲尔是什么意思根部排泄根部排泄海草是一种海草.

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