Evidence map›Paper›PMID 41672946›Full record

ArticlePlant signaling & behavior2026

Synergistic application of melatonin and methyl jasmonate mitigates drought-induced oxidative and photosynthetic impairment in

Hamzeh Amiri, Parvaneh Hemmati Hassan Gavyar

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Article in Plant signaling & behavior, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

2 authors.

Hamzeh AmiriDepartment of Biology, Faculty of Basic Science, Lorestan University, Khorramabad, Iran.
Parvaneh Hemmati Hassan GavyarDepartment of Biology, Faculty of Basic Science, Lorestan University, Khorramabad, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Drought stress severely limits rapeseed (Brassica napus L.) growth and productivity by disrupting photosynthetic efficiency and inducing oxidative damage. This study investigated the potential of melatonin (MT) and methyl jasmonate (MJ), individually and in combination, to mitigate drought-induced toxicity in rapeseed. Plants were subjected to drought stress (15% Polyethylene glycol 6000), followed by foliar application of MT (100 μM), MJ (100 μM), or their combination. Under drought stress, rapeseed exhibited significantly reduced chlorophyll content (by 33.72% for chl a and 54.59% for chl b), impaired photosystem II efficiency (Fv/Fm decreased by 16.08%), and elevated oxidative stress markers (H₂O₂ increased by 54.79%, MDA by 144.6%, ROS by 43.96%). The combined application of MT and MJ conferred the highest level of drought tolerance, increasing shoot fresh weight by 92.33% and root dry weight by 405% compared to the stressed control. This synergistic treatment effectively enhanced stomatal conductance by 76.25%, increased net photosynthetic rate (Pn) by 71.45%, and boosted key antioxidant enzyme activities (e.g., POD by 216%). The enhanced efficacy of the dual treatment compared to individual applications strongly indicates coordinated signaling between MT and MJ pathways in stress response modulation. These results demonstrate that simultaneous application of these plant growth regulators offers an effective physiological strategy to improve rapeseed performance under water deficit conditions.

Indexed as

AcetatesBrassica napusCyclopentanesDroughtsMelatoninOxidative StressOxylipinsPhotosynthesisAntioxidantsChlorophyllDrought ResistanceDrug SynergismPlant Growth RegulatorsReactive Oxygen SpeciesAcetatesAntioxidantsChlorophyllCyclopentanesMelatoninmethyl jasmonateOxylipinsPlant Growth RegulatorsReactive Oxygen SpeciesAbiotic stressBrassica napusoxidative damagephytohormonesreactive oxygen speciesstomatal conductance

Identifiers

PMID41672946
PMCPMC12915857

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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.