What does this research mean for the field?

Iprodione strongly alters soil bacterial community structure and functional profiles, while Carbendazim primarily inhibits enzymatic activity, with both fungicides exhibiting more severe negative effects in monoculture soils compared to crop rotation systems. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate the effects of the fungicides carbendazim and iprodione on soil bacterial community composition, enzymatic activities, and predictive functional profiles across conventional monoculture and crop rotation management systems.

August 27, 2026Soil Research

Fungicide-induced modifications in soil microbial profiles and enzyme activities: a controlled, plant-free soil microcosm study under contrasting agro-management systems

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Authors

RVRomina A. Verdenelli FBFlorencia M. Barbero MDMaría Florencia Dominchin

Discussion

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Overview

Controlled microcosm study demonstrates fungicide-specific disruption of bacterial communities and enzyme activities in agricultural soils, highlighting the protective role of crop rotation.

Key Points

To evaluate the effects of the fungicides carbendazim and iprodione on soil bacterial community composition, enzymatic activities, and predictive functional profiles across conventional monoculture and crop rotation management systems.
Conducted plant-free microcosm experiments using Typic Haplustoll soils from conventional monoculture and conservation crop rotation systems in Argentina exposed to recommended and higher rates of carbendazim and iprodione.
Analyzed microbial responses via high-throughput 16S rRNA gene sequencing, enzymatic assays (β-glucuronidase, β-glucosidase, xylanase), and functional inference using Tax4Fun2.
Iprodione induced greater shifts in bacterial diversity and structure, significantly reducing Proteobacteria and Acidobacteria while increasing Firmicutes, and suppressed predicted pathways for metabolism, energy production, and nitrogen cycling (nirK, nosZ).
Carbendazim caused stronger inhibition of soil enzymatic activity than iprodione, with the most severe enzyme suppression occurring in monoculture soils.
Conservation crop rotation alleviated some adverse impacts, though both fungicides altered predictive microbial functional profiles.

Cite This Study

Verdenelli et al. (2026) studied this question.

synapsesocial.com/papers/6a8fe9ad10c91c1e92621784 https://doi.org/10.1071/sr25204

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August 27, 2026Soil Research

Fungicide-induced modifications in soil microbial profiles and enzyme activities: a controlled, plant-free soil microcosm study under contrasting agro-management systems

View Full Paper

Ask AI

Bookmark

Authors

RVRomina A. Verdenelli FBFlorencia M. Barbero MDMaría Florencia Dominchin

Discussion

Member takes

Overview

Controlled microcosm study demonstrates fungicide-specific disruption of bacterial communities and enzyme activities in agricultural soils, highlighting the protective role of crop rotation.

Key Points

To evaluate the effects of the fungicides carbendazim and iprodione on soil bacterial community composition, enzymatic activities, and predictive functional profiles across conventional monoculture and crop rotation management systems.
Conducted plant-free microcosm experiments using Typic Haplustoll soils from conventional monoculture and conservation crop rotation systems in Argentina exposed to recommended and higher rates of carbendazim and iprodione.
Analyzed microbial responses via high-throughput 16S rRNA gene sequencing, enzymatic assays (β-glucuronidase, β-glucosidase, xylanase), and functional inference using Tax4Fun2.
Iprodione induced greater shifts in bacterial diversity and structure, significantly reducing Proteobacteria and Acidobacteria while increasing Firmicutes, and suppressed predicted pathways for metabolism, energy production, and nitrogen cycling (nirK, nosZ).
Carbendazim caused stronger inhibition of soil enzymatic activity than iprodione, with the most severe enzyme suppression occurring in monoculture soils.
Conservation crop rotation alleviated some adverse impacts, though both fungicides altered predictive microbial functional profiles.

Cite This Study

Verdenelli et al. (2026) studied this question.

synapsesocial.com/papers/6a8fe9ad10c91c1e92621784 https://doi.org/10.1071/sr25204

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