ArticleJournal of chemical ecology2010
High molecular size humic substances enhance phenylpropanoid metabolism in maize (Zea mays L.).
Article in Journal of chemical ecology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.
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Who cites it
40 citing papers in PubMed, 215 citations in OpenAlex.
- Emerging Trends in Nanotechnology and AI-Driven Valorization of Agro-Industrial Waste in Circular Bioeconomy for Production of Biostimulants.Foods (Basel, Switzerland) · 2026Review
- Leonardite-derived humic substances enhance phosphorus use efficiency in lettuce through integrated physiological and metabolic reprogramming.Frontiers in plant science · 2026Article
- Sustainable eggplant cultivation: Distinct effects of foliar and root applications of alkaline-extracted bioproducts from digestate.iScience · 2025Article
- Humic Substances from Different Sources Modulate Salicylic Acid-Mediated Defense in Plants Infected by Powdery Mildew.Plants (Basel, Switzerland) · 2025Article
- Protein hydrolysates derived from residual after polysaccharide extraction of Chlorella vulgaris biomass improves yield and quality of baby leaf lettuce.Scientific reports · 2025Article
- Lettuce (Plants (Basel, Switzerland) · 2024Article
- Mitigation of drought stress in maize and sorghum by humic acid: differential growth and physiological responses.BMC plant biology · 2024Article
- Impact ofPeerJ · 2024Article
- Investigation into the role of carboxylic acid and phenolic hydroxyl groups in the plant biostimulant activity of a humic acid purified from an oxidized sub-bituminous coal.Frontiers in plant science · 2024Article
- Humic substances increase tomato tolerance to osmotic stress while modulating vertically transmitted endophytic bacterial communities.Frontiers in plant science · 2024Article
- Phosphorus Acquisition Efficiency and Transcriptomic Changes in Maize Plants Treated with Two Lignohumates.Plants (Basel, Switzerland) · 2023Article
- Humic Substances Isolated from Recycled Biomass Trigger Jasmonic Acid Biosynthesis and Signalling.Plants (Basel, Switzerland) · 2023Article
- Evaluation of Sustainable Recycled Products to Increase the Production of Nutraceutical and Antibacterial Molecules in Basil Plants by a Combined Metabolomic Approach.Plants (Basel, Switzerland) · 2023Article
- Enhancing crop resilience by harnessing the synergistic effects of biostimulants against abiotic stress.Frontiers in plant science · 2023Review
- Changes in Metabolic Profile of Rice Leaves Induced by Humic Acids.Plants (Basel, Switzerland) · 2022Article
- Effects of Chlorella extracts on growth of Capsicum annuum L. seedlings.Scientific reports · 2022Article
- Ginger Extract and Fulvic Acid Foliar Applications as Novel Practical Approaches to Improve the Growth and Productivity of Damask Rose.Plants (Basel, Switzerland) · 2022Article
- Regulation of salt tolerance in the roots ofFrontiers in plant science · 2022Article
- Variable humic product effects on maize structural biochemistry across annual weather patterns and soil types in two Iowa (U.S.A.) production fields.Frontiers in plant science · 2022Article
- Review
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A high molecular weight humic fraction (>3,500 Da) was characterized chemically by DRIFT and 1H NMR spectroscopy, and was applied to Zea mays L. plants to evaluate its effect on phenylpropanoid metabolism. The activity and gene expression of phenylalanine (tyrosine) ammonia-lyase (PAL/TAL), and the concentrations of phenolics and their amino acid precursors phenylalanine and tyrosine were assayed. Maximum induction of PAL/TAL activity and expression was obtained when the concentration of added humic substance was 1 mg C/l hydroponic solution. Phenylalanine and tyrosine significantly decreased (-16% and -22%, respectively), and phenolic compounds increased in treated plants. The effects of the humic substance could be ascribed partly to indoleacetic acid (27 nmol/mg C) in the humic fraction. Our results suggest that this humic fraction induces changes in phenylpropanoid metabolism. This is the first study that shows a relationship between humic substances and the phenylpropanoid pathway.
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Registered trials
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.