Evidence map›Paper›PMID 40036783›Full record

ArticleAnnals of botany2025

Drought response of the maize plant-soil-microbiome system is influenced by plant size and presence of root hairs.

Roman P Hartwig, Michael Santangeli, Henrike Würsig, María Martín Roldán, Bunlong Yim, Eva Lippold, Ariel Tasca, Eva Oburger, Mika Tarkka, Doris Vetterlein and 5 more

Abstract read
In one paragraph

Article in Annals of botany, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors.

Roman P HartwigUniversity of Hohenheim, 70599 Stuttgart, Germany.
Michael SantangeliBOKU University, 3430 Tulln an der Donau, Austria.
Henrike WürsigHelmholtz Centre for Environmental Research, 06120 Halle (Saale), Germany.
María Martín RoldánHelmholtz Centre for Environmental Research, 06120 Halle (Saale), Germany.
Bunlong YimJulius Kühn Institute, 38104 Braunschweig, Germany.
Eva LippoldHelmholtz Centre for Environmental Research, 06120 Halle (Saale), Germany.
Ariel TascaTechnical University of Munich, 85354 Freising, Germany.
Eva OburgerBOKU University, 3430 Tulln an der Donau, Austria.
Mika TarkkaHelmholtz Centre for Environmental Research, 06120 Halle (Saale), Germany.ORCID 0000-0003-4630-351X
Doris VetterleinHelmholtz Centre for Environmental Research, 06120 Halle (Saale), Germany.ORCID 0000-0003-2020-3262
Patrick BienertTechnical University of Munich, 85354 Freising, Germany.
Evgenia BlagodatskayaHelmholtz Centre for Environmental Research, 06120 Halle (Saale), Germany.ORCID 0000-0002-8284-4017
Kornelia SmallaJulius Kühn Institute, 38104 Braunschweig, Germany.ORCID 0000-0001-7653-5560
Bettina HauseLeibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany.
Monika A WimmerUniversity of Hohenheim, 70599 Stuttgart, Germany.

Funding

Deutsche Forschungsgemeinschaft
6 · The paper itself

Abstract

BACKGROUND AND

aimsWe have abundant knowledge on drought responses of plants or soil microorganisms individually. However, there is a severe lack of knowledge regarding interactions in the plant-soil-microbiome continuum, and specifically root-soil interface traits including the role of root hairs. Here we investigated how water limitation propagates in a plant-soil-microbiome system upon stopping irrigation. We used two Zea mays genotypes [rth3 and its isogenic wild type (WT), B73], differing in root hair formation, to elucidate the effect of rhizosphere extension under water limitation.

methodsFor 22 d, WT and rth3 plants were grown in a climate chamber, with irrigation stopped for drought treatment during the last 7 d. Daily measurements included soil water status, plant evapotranspiration and gas exchange. At harvest, root exudates, shoot relative water content, osmolality and nutrients, root morphological traits and transcriptomics, and soil microbial β-diversity and enzyme activity were determined. KEY

resultsIn line with a larger plant size, drought stress developed more rapidly and the number of differentially expressed genes was higher in the WT compared with rth3. Under water limitation, root exudation rates increased and soil enzyme activities decreased more strongly in the WT rhizosphere. In both genotypes, water level significantly altered microbial β-diversity in the bulk soil, particularly affecting fungi more than bacteria/archaea. The genotype affected only bacteria/archaea and was more pronounced in rhizosphere than in bulk soil.

conclusionsThis interdisciplinary study assessed how a short drought stress manifested in a plant-soil-microbiome system. Water limitation altered microbial (fungal) diversity in distance from the root surface. Genotype-specific stress-induced increases in exudation rates modified microbial activity in root proximity, possibly pointing to root hair functions under water limitation. Less intense drought responses of rth3 were confirmed at all levels of investigation and may be due at least in part to its smaller plant size.

Indexed as

DroughtsMicrobiotaPlant RootsSoil MicrobiologyZea maysGenotypeRhizosphereSoilWaterSoilWaterdroughtenzyme activitymicrobiomeroot exudationroot hairsrth3soilZea mays

Identifiers

PMID40036783
PMCPMC12682821

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.