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土壤微生物社区对不同新热带山林中生态虫主导的反应

Joseph D Edwards¹, Alexander H Krichels², Georgia S Seyfried³

¹Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN, USA. jedwar98@utk.edu.

|January 6, 2024

概括

肠杆菌菌 (EM) 树的占主导地位塑造了热带土壤微生物群,改变了微生物的多样性和功能. 与混合树枝状菌根 (AM) 森林相比,EM支架显示出不同的真菌和 prokaryotic 社区.

科学领域:

生态生态学生态生态学
土壤科学土壤科学
微生物学微生物学

背景情况:

脊髓菌 (EM) 的关联影响了热带森林树木的主导地位和土壤有机物循环.
电磁波相关影响对周围土壤微生物群落的影响,特别是在新热带森林中,仍然不太了解.

研究的目的:

为了研究EM主导的种群如何影响土壤微生物群落的组成,与混合状菌根 (AM) 和EM种群相比.
为了测试EM主导的支架表现出明显的微生物组合,较低的多样性和更紧密的社区对应,由于改变了碳和循环的假设.

主要方法:

在巴拿马的混合AM-EM和EM占主导地位的表面土壤中检查了真菌和 prokaryotic 社区组成.
利用了ITS2 (真菌) 和16SrRNA (核糖体) 基因区域的高通量Illumina测序.
分析了α和β多样性,以及真菌功能组和微生物种群的相对丰富性.

主要成果:

在EM主导的和混合的AM-EM站之间,真菌和 prokaryotic 社区的组成显著不同.
在EM主导的种群中, prokaryotic 多样性较低,真菌 saprotrophs 和病原体的丰富性减少.
与预测相反,EM占主导地位的群体表现出较低的真菌群体同质性比混合群体.

结论:

与多样化的森林相比,EM占主导地位的热带森林种群具有独特的土壤微生物群.
电磁真菌可以作为特定微生物功能组的过器,可能影响植物性能和生态系统功能.

关键词:

菌类病原体的真菌病原体微生物社区的微生物社区.菌根的关联菌根的关联菌根与细菌的相互作用热带雨林是一个热带雨林.

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