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Soil bacteria community makeup, not diversity, drives plant yield

Xu X, Liu J, Chen S, Liu S, Dong M

Soil Health

Every nitrogen application you make reorganizes which bacteria dominate your soil; this research shows that community makeup, not species count, determines whether those plants stay productive through heat waves and drought stress.

Plants are in constant partnership with billions of bacteria living in the soil around their roots. Researchers pooled data from hundreds of experiments worldwide and found that which bacteria are present matters far more than how many different species there are. When conditions shift that bacterial community toward a stable, tightly connected mix rich in certain groups, plants tend to produce more.

Key Findings

1

Nitrogen addition had the strongest effect on plant yield and microbial community assembly among all global change factors tested across 272 experiments.

2

Plant performance correlated more strongly with shifts in microbial community composition than with changes in species diversity (alpha diversity).

3

More stable and complex microbial networks enriched with Proteobacteria and Actinobacteria were associated with higher plant yield.

chevron_right Technical Summary

Soil microbial community composition, not species count, is the stronger predictor of plant performance under environmental stress. A meta-analysis of 272 global-change experiments found nitrogen addition drives the largest shifts in both plant yield and the bacterial communities colonizing root zones.

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Abstract Preview

Original paper

Microbial Community Structure, Rather Than Diversity, Predicts Plant Yield Under Global Change.

Under global change, terrestrial plants adjust their physiological metabolism alongside adaptive restructuring of rhizosphere microbial communities, yet the mechanistic links between plant phenotyp...

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Abstract copyright held by the original publisher.

hub This connects to 10 other discoveries — soil-health, climate-adaptation, nitrogen-cycling +2 more 5 related articles

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thermostat Climate Adaptation
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thermostat

Climate adaptation in plants refers to the physiological and evolutionary mechanisms through which plants adjust to changing environmental conditions, including temperature shifts, altered precipitation patterns, and seasonal variations. Understanding these processes is essential for plant science

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