Evidence map›Paper›PMID 42323532›Full record

ArticleBMC plant biology2026

Zinc oxide nanoparticles mitigate drought stress and enhance secondary metabolite production in Hypericum perforatum.

Siba Mouid Al-Haliem, Muthanna Jasim Mohammed, Amera Mahmood Al-Rawi, Heidar Meftahizade

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Siba Mouid Al-HaliemDepartment of Dental Basic Sciences, College of Dentistry, University of Mosul, Mosul, Iraq.
Muthanna Jasim MohammedDepartment of Environmental Sciences, College of Environmental Sciences, University of Mosul, Mosul, Iraq.
Amera Mahmood Al-RawiDepartment of Biology, College of Science, University of Mosul, Mosul, Iraq. amesbio5@uomosul.edu.iq.
Heidar MeftahizadeDepartment of Horticultural Sciences, Faculty of Agriculture and Natural Resources, Ardakan University, P.O. Box 184, Ardakan, Iran. hmeftahizade@ardakan.ac.ir.ORCID http://orcid.org/0000-0003-2806-4551

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Drought stress represents a major abiotic factor responsible for reducing the growth, yield and quality of important plants. This research was investigated the potential of ZnO Nano particles (ZnO NPs) to alleviate drought stress in Hypericum perforatum (common St. John's Wort). A factorial experiment using randomized complete block design (RCBD) was performed with 3 replications and 4 different irrigation treatments (100%, 70%, 40%, and 25% of field capacity) combined with 4 different concentrations of ZnO NPs (0, 10, 50, and 100 mg L

Indexed as

HypericumNanoparticlesSecondary MetabolismZinc OxideAntioxidantsChlorophyllDrought ResistanceDroughtsPhenolsPhotosynthesisPlant LeavesStress, PhysiologicalAntioxidantsChlorophyllPhenolsZinc OxideEssential oilHypericinMedicinal plantsNanoparticlePhenolic compoundsPlant stress

Identifiers

PMID42323532
PMCPMC13536548

What OpenQuestion holds

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Registered trials

None linked

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.