Pulse Brain · Growing Health Evidence Index
Tier 4 — Narrative / commentaryPeer-reviewed

Harnessing Green Helpers: Nitrogen-Fixing Bacteria and Other Beneficial Microorganisms in Plant–Microbe Interactions for Sustainable Agriculture

Luisa Liu-Xu, Ana Isabel González-Hernández, Gemma Camañes, Begonya Vicedo, Loredana Scalschi, Eugenio Llorens

Horticulturae · 2024

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Summary

This review examines the contribution of beneficial soil microorganisms—particularly nitrogen-fixing bacteria and mycorrhizal fungi—to sustainable horticultural systems. The authors synthesise evidence on plant–microbe symbioses that enhance nutrient availability, crop resilience, and productivity whilst reducing chemical fertiliser dependency. The paper acknowledges practical constraints to microbial inoculant adoption, including competition from indigenous strains and environmental variability, but argues that deepening understanding of these interactions remains essential for food security.

UK applicability

The review's principles are broadly applicable to UK horticulture and sustainable farming policy, though adoption barriers such as soil microbial competition and climate variability will require site-specific validation under UK soil and weather conditions. The emphasis on reducing synthetic fertiliser inputs aligns with UK environmental policy goals, but implementation guidance specific to UK growing regions would strengthen practical utility.

Key measures

Narrative assessment of microbial mechanisms in nutrient provision, growth promotion, stress tolerance, and fertiliser reduction potential

Outcomes reported

The paper reviews the roles of nitrogen-fixing bacteria, mycorrhizal fungi, and plant growth-promoting bacteria in enhancing crop productivity, nutrient cycling, and stress tolerance. It assesses how these beneficial microorganisms can reduce reliance on chemical fertilizers whilst identifying challenges to their universal application.

Theme
Farming systems, soils & land use
Subject
Soil biology & microbiology
Study type
Narrative Review
Study design
Narrative review
Source type
Peer-reviewed study
Status
Published
System type
Horticulture
DOI
10.3390/horticulturae10060621
Catalogue ID
SNmoqqt1lb-ai3g3f

Topic tags

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