葡萄藤细菌群落在加利福尼亚中央山谷的空间和时间上显示出特定的动态。

IF 6.2 2区 环境科学与生态学 Q1 GENETICS & HEREDITY
Joel F Swift, Zoë Migicovsky, Grace E Trello, Allison J Miller
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引用次数: 0

摘要

背景:植物器官(室室)寄主不同的微生物群,这些微生物群随着发育和气候的变化而变化。葡萄藤是一种多年生木本作物,在广阔的地理区域进行无性繁殖和栽培,因此,它们的微生物群落也可能反映出特定地点的影响。这些特定地点的影响以及不同地点之间的微生物差异构成了“风土”,即环境对特定地区生产的葡萄酒的影响。商品葡萄藤通常由遗传上不同的根(砧木)嫁接到茎系统(接穗)上,通过基因组与基因组的相互作用增加了额外的复杂性。结果:为了了解嫁接葡萄藤中细菌多样性的时空格局,我们使用16S rRNA扩增子测序技术,在连续两个生长季节对加州中央山谷三个县的商业葡萄园嫁接葡萄藤的土壤和隔室微生物群(浆果、叶子和根)进行了量化。群落组成揭示了区室特有的动态。根系聚集的特定位点细菌群落反映了砧木基因型和环境的影响,而叶片和浆果的细菌群落则与时间有关。结论:这些结果为葡萄藤根系内的微生物风土提供了进一步的证据,但也揭示了在加利福尼亚中央山谷,地上隔室的微生物群与当地土壤微生物群的关系很弱。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Grapevine bacterial communities display compartment-specific dynamics over space and time within the Central Valley of California.

Background: Plant organs (compartments) host distinct microbiota which shift in response to variation in both development and climate. Grapevines are woody perennial crops that are clonally propagated and cultivated across vast geographic areas, and as such, their microbial communities may also reflect site-specific influences. These site-specific influences along with microbial differences across sites compose 'terroir', the environmental influence on wine produced in a given region. Commercial grapevines are typically composed of a genetically distinct root (rootstock) grafted to a shoot system (scion) which adds an additional layer of complexity via genome-to-genome interactions.

Results: To understand spatial and temporal patterns of bacterial diversity in grafted grapevines, we used 16S rRNA amplicon sequencing to quantify soil and compartment microbiota (berries, leaves, and roots) for grafted grapevines in commercial vineyards across three counties in the Central Valley of California over two successive growing seasons. Community composition revealed compartment-specific dynamics. Roots assembled site-specific bacterial communities that reflected rootstock genotype and environment influences, whereas bacterial communities of leaves and berries displayed associations with time.

Conclusions: These results provide further evidence of a microbial terroir within the grapevine root systems but also reveal that the microbiota of above-ground compartments are only weakly associated with the local soil microbiome in the Central Valley of California.

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来源期刊
Environmental Microbiome
Environmental Microbiome Immunology and Microbiology-Microbiology
CiteScore
7.40
自引率
2.50%
发文量
55
审稿时长
13 weeks
期刊介绍: Microorganisms, omnipresent across Earth's diverse environments, play a crucial role in adapting to external changes, influencing Earth's systems and cycles, and contributing significantly to agricultural practices. Through applied microbiology, they offer solutions to various everyday needs. Environmental Microbiome recognizes the universal presence and significance of microorganisms, inviting submissions that explore the diverse facets of environmental and applied microbiological research.
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