Abstract
A wines’ terroir, represented as wine traits with regional distinctiveness, is a reflection of both the biophysical and human-driven conditions in which the grapes were grown and wine made. Soil is an important factor contributing to the uniqueness of a wine produced by vines grown in specific conditions. Here, we evaluated the impact of environmental variables on the soil bacteria of 22 Barossa Valley vineyard sites based on the 16S rRNA gene hypervariable region 4. In this study, we report that both dispersal isolation by geographic distance and environmental heterogeneity (soil plant-available P content, elevation, rainfall, temperature, spacing between row and spacing between vine) contribute to microbial community dissimilarity between vineyards. Vineyards located in cooler and wetter regions showed lower beta diversity and a higher ratio of dominant taxa. Differences in soil bacterial community composition were significantly associated with differences in fruit and wine composition. Our results suggest that environmental factors affecting wine terroir, may be mediated by changes in microbial structure, thus providing a basic understanding of how growing conditions affect interactions between plants and their soil bacteria.
Document Type
Article
Publication Date
1-7-2021
Digital Object Identifier (DOI)
https://doi.org/10.3389/fmicb.2020.597944
Funding Information
This study was funded through a Pilot Program in Genomic Applications in Agriculture and Environment Sectors jointly supported by The University of Adelaide and the Australian Genome Research Facility Ltd. JZ was supported by an Adelaide Graduate Research Scholarship (The University of Adelaide). CR was supported by a The University of Adelaide Beacon Research Fellowship and is currently partially supported by the National Institute of Food and Agriculture, United States Department of Agriculture, Hatch Program number 2352987000. MG was supported by the Australian Research Council through Centre of Excellence (CE1400008) and Future Fellowship (FT130100709) funding.
Related Content
The datasets generated for this study can be found in online repositories. The names of the repository/repositories and accession number(s) can be found below: https://www.ncbi.nlm.nih.gov/, PRJNA601984.
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fmicb.2020.597944/full#supplementary-material It is also available for download as the additional file listed at the end of this record.
Repository Citation
Zhou, Jia; Cavagnaro, Timothy R.; De Bei, Roberta; Nelson, Tiffanie M.; Stephen, John R.; Metcalfe, Andrew; Gilliham, Matthew; Breen, James; Collins, Cassandra; and Rodríguez López, Carlos M., "Wine Terroir and the Soil Bacteria: An Amplicon Sequencing-Based Assessment of the Barossa Valley and Its Sub-Regions" (2021). Horticulture Faculty Publications. 48.
https://uknowledge.uky.edu/horticulture_facpub/48
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Table_1_Wine Terroir and the Soil Bacteria An Amplicon Sequencing–Based Assessment of the Barossa Valley and Its Sub-Regions.xlsx (10 kB)
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Table_2_Wine Terroir and the Soil Bacteria An Amplicon Sequencing–Based Assessment of the Barossa Valley and Its Sub-Regions.xlsx (13 kB)
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Table_3_Wine Terroir and the Soil Bacteria An Amplicon Sequencing–Based Assessment of the Barossa Valley and Its Sub-Regions.xlsx (12 kB)
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Table_4_Wine Terroir and the Soil Bacteria An Amplicon Sequencing–Based Assessment of the Barossa Valley and Its Sub-Regions.xlsx (11 kB)
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Table_5_Wine Terroir and the Soil Bacteria An Amplicon Sequencing–Based Assessment of the Barossa Valley and Its Sub-Regions.xlsx (11 kB)
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Table_6_Wine Terroir and the Soil Bacteria An Amplicon Sequencing–Based Assessment of the Barossa Valley and Its Sub-Regions.xlsx (14 kB)
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Table_7_Wine Terroir and the Soil Bacteria An Amplicon Sequencing–Based Assessment of the Barossa Valley and Its Sub-Regions.xlsx (12 kB)
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Table_8_Wine Terroir and the Soil Bacteria An Amplicon Sequencing–Based Assessment of the Barossa Valley and Its Sub-Regions.xlsx (11 kB)
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Table_9_Wine Terroir and the Soil Bacteria An Amplicon Sequencing–Based Assessment of the Barossa Valley and Its Sub-Regions.xlsx (14 kB)
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Table_10_Wine Terroir and the Soil Bacteria An Amplicon Sequencing–Based Assessment of the Barossa Valley and Its Sub-Regions.xlsx (11 kB)
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Table_12_Wine Terroir and the Soil Bacteria An Amplicon Sequencing–Based Assessment of the Barossa Valley and Its Sub-Regions.xlsx (27 kB)
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Notes/Citation Information
Published in Frontiers in Microbiology, v. 11, article 597944.
© 2021 Zhou, Cavagnaro, De Bei, Nelson, Stephen, Metcalfe, Gilliham, Breen, Collins and Rodríguez López
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.