Rhizosphere Microbiome Shifts for Summer Legume Cover Crops

18.7 KB of tabular data details functional and taxonomic shifts in rhizosphere bacterial communities associated with three summer legume cover crops. The dataset, created by Sri Kiran Reddy Alla and last updated in May 2026, compares cowpea, tepary bean, and sunn hemp rhizospheres to fallow soils using 16S rRNA amplicon sequencing. Weighted UniFrac analyses indicated clear separation between cover-cropped and fallow soils, accounting for approximately 54% of community variation.

Use Cases

• Analyzing shifts in bacterial community composition based on relative abundance data for taxa like Proteobacteria and Actinobacteriota.
• Investigating species-specific recruitment patterns, such as higher Rhizobiales abundance in tepary bean rhizospheres.
• Comparing predicted functional pathways, like those for carbon metabolism and nitrogen fixation, between legume and fallow soils.
• Modeling relationships between cover crop species and microbial groups linked to organic matter turnover and plant growth.

Strengths

• Data is derived from 16S rRNA amplicon sequencing, a standard method for microbial community profiling.
• Includes functional predictions using PICRUSt2 for pathways related to central carbon metabolism, amino acid biosynthesis, and siderophore production.
• Clear separation between cover-cropped and fallow soils was quantified, accounting for approximately 54% of community variation.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is very small at 18.7 KB, indicating limited scope.

Provenance

Source

figshare

Collection Method

16S rRNA amplicon sequencing and PICRUSt2 functional prediction from an organic production system study.

Time Range

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Freshness

Last updated 2026-05-01 15:41:57; freshness should be verified.

Geography

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