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地中海生物多样性热点地区（智利拉坎帕纳国家公园）土壤的微生物多样性

Microbial Diversity of Soil in a Mediterranean Biodiversity Hotspot: Parque Nacional La Campana, Chile.

作者信息

Quinteros-Urquieta Carolina, Francois Jean-Pierre, Aguilar-Muñoz Polette, Orellana Roberto, Villaseñor Rodrigo, Moreira-Muñoz Andres, Molina Verónica

机构信息

Programa de Doctorado Interdisciplinario en Ciencias Ambientales, Universidad de Playa Ancha, Valparaíso 2340000, Chile.

Departamento de Ciencias y Geografía, Universidad de Playa Ancha, Valparaíso 2340000, Chile.

出版信息

Microorganisms. 2024 Jul 31;12(8):1569. doi: 10.3390/microorganisms12081569.

DOI:10.3390/microorganisms12081569
PMID:39203411
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11356564/
Abstract

Parque Nacional La Campana (PNLC) is recognized worldwide for its flora and fauna, rather than for its microbial richness. Our goal was to characterize the structure and composition of microbial communities (bacteria, archaea and fungi) and their relationship with the plant communities typical of PNLC, such as sclerophyllous forest, xerophytic shrubland, hygrophilous forest and dry sclerophyllous forest, distributed along topoclimatic variables, namely, exposure, elevation and slope. The plant ecosystems, the physical and chemical properties of organic matter and the soil microbial composition were characterized by massive sequencing (iTag-16S rRNA, V4 and ITS1-5F) from the DNA extracted from the soil surface (5 cm, = 16). A contribution of environmental variables, particularly related to each location, is observed. Proteobacteria (35.43%), Actinobacteria (32.86%), Acidobacteria (10.07%), Ascomycota (76.11%) and Basidiomycota (15.62%) were the dominant phyla. The beta diversity (~80% in its axes) indicates that bacteria and archaea are linked to their plant categories, where the xerophytic shrub stands out with the most particular microbial community. More specifically, Crenarchaeote, Humicola and Mortierella were dominant in the sclerophyllous forest; Chloroflexi, Cyanobacteria and Alternaria in the xerophytic shrubland; Solicoccozyma in the dry sclerophyllous forest; and Cladophialophora in the hygrophilous forest. In conclusion, the structure and composition of the microbial consortia is characteristic of PNLC's vegetation, related to its topoclimatic variables, which suggests a strong association within the soil microbiome.

摘要

拉坎帕纳国家公园（PNLC）因其动植物群而闻名于世，而非其微生物丰富度。我们的目标是描述微生物群落（细菌、古菌和真菌）的结构和组成，以及它们与PNLC典型植物群落的关系，这些植物群落如硬叶林、旱生灌木丛、喜湿林和干燥硬叶林，沿着地形气候变量分布，即暴露度、海拔和坡度。通过对从土壤表层（5厘米，n = 16）提取的DNA进行大规模测序（iTag-16S rRNA、V4和ITS1-5F），对植物生态系统、有机质的物理和化学性质以及土壤微生物组成进行了表征。观察到环境变量的贡献，特别是与每个位置相关的变量。变形菌门（35.43%）、放线菌门（32.86%）、酸杆菌门（10.07%）、子囊菌门（76.11%）和担子菌门（15.62%）是优势门类。β多样性（其轴上约80%）表明细菌和古菌与它们的植物类别相关联，其中旱生灌木丛以最独特的微生物群落脱颖而出。更具体地说，奇古菌门、腐质霉属和被孢霉属在硬叶林中占主导地位；绿弯菌门、蓝细菌和链格孢属在旱生灌木丛中占主导地位； Solicoccozyma在干燥硬叶林中占主导地位；以及枝顶孢属在喜湿林中占主导地位。总之，微生物群落的结构和组成是PNLC植被的特征，与其地形气候变量相关，这表明土壤微生物组内部存在强烈关联。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/c386a167fb28/microorganisms-12-01569-g014.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/90850df6383f/microorganisms-12-01569-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/6ebaf20c7b22/microorganisms-12-01569-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/c386a167fb28/microorganisms-12-01569-g014.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/49cb2d88df0e/microorganisms-12-01569-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/a459c2261d9c/microorganisms-12-01569-g006a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/3bede1d2a38b/microorganisms-12-01569-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/f55466d5965b/microorganisms-12-01569-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/90850df6383f/microorganisms-12-01569-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/e7e0c63c1691/microorganisms-12-01569-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/12d74b567471/microorganisms-12-01569-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/e7fa4b0356c9/microorganisms-12-01569-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/6ebaf20c7b22/microorganisms-12-01569-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78bb/11356564/c386a167fb28/microorganisms-12-01569-g014.jpg

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