Vineyard soil bacterial diversity and composition revealed by 16S rRNA genes: Differentiation by geographic features

By K. N. Burns, D. Kluepfel, S. Strauss, Nicholas A. Bokulich, D. Cantu, K. Steenwerth. 2015

149 citations recorded by the source corpus.

Abstract Here, we examine soil-borne microbial biogeography as a function of the features that define an American Viticultural Area (AVA), a geographically delimited American wine grape-growing region, defined for its distinguishing features of climate, geology, soils, physical features (topography and water), and elevation. In doing so, we lay a foundation upon which to link the terroir of wine back to the soil-borne microbial communities. The objective of this study is to elucidate the hierarchy of drivers of soil bacterial community structure in wine grape vineyards in Napa Valley, California. We measured differences in the soil bacterial and archaeal community composition and diversity by sequencing the fourth variable region of the small subunit ribosomal RNA gene (16S V4 rDNA). Soil bacterial communities were structured with respect to soil properties and AVA, demonstrating the complexity of soil microbial biogeography at the landscape scale and within the single land-use type. Location and edaphic variables that distinguish AVAs were the strongest explanatory factors for soil microbial community structure. Notably, the relationship with TC and TN of the terroir should be examined further.

Subfields: Food Science, Plant Science, Tourism, Leisure and Hospitality Management

View Paper: https://www.semanticscholar.org/paper/28fe80dae9270b235fdcf08c40488efe98369f8c

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In Plant Science

  1. S. Strauss
  2. D. Kluepfel

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