Evidence map›Paper›PMID 26450705›Full record

ArticlePlant physiology2015

Abscisic Acid Regulation of Root Hydraulic Conductivity and Aquaporin Gene Expression Is Crucial to the Plant Shoot Growth Enhancement Caused by Rhizosphere Humic Acids.

Maite Olaetxea, Verónica Mora, Eva Bacaicoa, María Garnica, Marta Fuentes, Esther Casanova, Angel M Zamarreño, Juan C Iriarte, David Etayo, Iñigo Ederra and 3 more

Open access · greenAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Plant physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
8.8field-weighted citation impact, top 3% of its field
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

29 citing papers in PubMed, 73 citations in OpenAlex.

  1. Review
  2. The Influence of Humic Substances and Auxin-Producing Bacteria onInternational journal of molecular sciences · 2026
    Article
  3. Article
  4. The Effect of Plant Growth-Promoting BacteriaInternational journal of molecular sciences · 2024
    Article
  5. Effects of aMembranes · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Root ABA and HPlant direct · 2019
    Article
  19. Article
  20. Article
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

13 authors at 2 institutions in 1 country.

Maite OlaetxeaDepartment of Environmental Biology (Agricultural Chemistry and Biology Group), Faculty of Sciences, University of Navarra, 31080 Pamplona, Spain (M.O., V.M., E.B., M.G., M.F., E.C., A.M.Z., R.B., J.M.G.-M.); andAntenna Group, Electrical and Electronic Engineering Department, Public University of Navarra, 31006 Pamplona, Spain (J.C.I., D.E., I.E., R.G.).ORCID http://orcid.org/0000-0001-9858-4910
Verónica MoraDepartment of Environmental Biology (Agricultural Chemistry and Biology Group), Faculty of Sciences, University of Navarra, 31080 Pamplona, Spain (M.O., V.M., E.B., M.G., M.F., E.C., A.M.Z., R.B., J.M.G.-M.); andAntenna Group, Electrical and Electronic Engineering Department, Public University of Navarra, 31006 Pamplona, Spain (J.C.I., D.E., I.E., R.G.).ORCID http://orcid.org/0000-0001-8255-4792
Eva BacaicoaDepartment of Environmental Biology (Agricultural Chemistry and Biology Group), Faculty of Sciences, University of Navarra, 31080 Pamplona, Spain (M.O., V.M., E.B., M.G., M.F., E.C., A.M.Z., R.B., J.M.G.-M.); andAntenna Group, Electrical and Electronic Engineering Department, Public University of Navarra, 31006 Pamplona, Spain (J.C.I., D.E., I.E., R.G.).
María GarnicaDepartment of Environmental Biology (Agricultural Chemistry and Biology Group), Faculty of Sciences, University of Navarra, 31080 Pamplona, Spain (M.O., V.M., E.B., M.G., M.F., E.C., A.M.Z., R.B., J.M.G.-M.); andAntenna Group, Electrical and Electronic Engineering Department, Public University of Navarra, 31006 Pamplona, Spain (J.C.I., D.E., I.E., R.G.).
Marta FuentesDepartment of Environmental Biology (Agricultural Chemistry and Biology Group), Faculty of Sciences, University of Navarra, 31080 Pamplona, Spain (M.O., V.M., E.B., M.G., M.F., E.C., A.M.Z., R.B., J.M.G.-M.); andAntenna Group, Electrical and Electronic Engineering Department, Public University of Navarra, 31006 Pamplona, Spain (J.C.I., D.E., I.E., R.G.).
Esther CasanovaDepartment of Environmental Biology (Agricultural Chemistry and Biology Group), Faculty of Sciences, University of Navarra, 31080 Pamplona, Spain (M.O., V.M., E.B., M.G., M.F., E.C., A.M.Z., R.B., J.M.G.-M.); andAntenna Group, Electrical and Electronic Engineering Department, Public University of Navarra, 31006 Pamplona, Spain (J.C.I., D.E., I.E., R.G.).
Angel M ZamarreñoDepartment of Environmental Biology (Agricultural Chemistry and Biology Group), Faculty of Sciences, University of Navarra, 31080 Pamplona, Spain (M.O., V.M., E.B., M.G., M.F., E.C., A.M.Z., R.B., J.M.G.-M.); andAntenna Group, Electrical and Electronic Engineering Department, Public University of Navarra, 31006 Pamplona, Spain (J.C.I., D.E., I.E., R.G.).ORCID http://orcid.org/0000-0003-1966-0239
Juan C IriarteDepartment of Environmental Biology (Agricultural Chemistry and Biology Group), Faculty of Sciences, University of Navarra, 31080 Pamplona, Spain (M.O., V.M., E.B., M.G., M.F., E.C., A.M.Z., R.B., J.M.G.-M.); andAntenna Group, Electrical and Electronic Engineering Department, Public University of Navarra, 31006 Pamplona, Spain (J.C.I., D.E., I.E., R.G.).ORCID http://orcid.org/0000-0002-2860-5138
David EtayoDepartment of Environmental Biology (Agricultural Chemistry and Biology Group), Faculty of Sciences, University of Navarra, 31080 Pamplona, Spain (M.O., V.M., E.B., M.G., M.F., E.C., A.M.Z., R.B., J.M.G.-M.); andAntenna Group, Electrical and Electronic Engineering Department, Public University of Navarra, 31006 Pamplona, Spain (J.C.I., D.E., I.E., R.G.).
Iñigo EderraDepartment of Environmental Biology (Agricultural Chemistry and Biology Group), Faculty of Sciences, University of Navarra, 31080 Pamplona, Spain (M.O., V.M., E.B., M.G., M.F., E.C., A.M.Z., R.B., J.M.G.-M.); andAntenna Group, Electrical and Electronic Engineering Department, Public University of Navarra, 31006 Pamplona, Spain (J.C.I., D.E., I.E., R.G.).
Ramón GonzaloDepartment of Environmental Biology (Agricultural Chemistry and Biology Group), Faculty of Sciences, University of Navarra, 31080 Pamplona, Spain (M.O., V.M., E.B., M.G., M.F., E.C., A.M.Z., R.B., J.M.G.-M.); andAntenna Group, Electrical and Electronic Engineering Department, Public University of Navarra, 31006 Pamplona, Spain (J.C.I., D.E., I.E., R.G.).
Roberto BaigorriDepartment of Environmental Biology (Agricultural Chemistry and Biology Group), Faculty of Sciences, University of Navarra, 31080 Pamplona, Spain (M.O., V.M., E.B., M.G., M.F., E.C., A.M.Z., R.B., J.M.G.-M.); andAntenna Group, Electrical and Electronic Engineering Department, Public University of Navarra, 31006 Pamplona, Spain (J.C.I., D.E., I.E., R.G.) rbaigorri@timacagro.es jgmina@unav.es.ORCID http://orcid.org/0000-0002-9197-5895
Jose M García-MinaDepartment of Environmental Biology (Agricultural Chemistry and Biology Group), Faculty of Sciences, University of Navarra, 31080 Pamplona, Spain (M.O., V.M., E.B., M.G., M.F., E.C., A.M.Z., R.B., J.M.G.-M.); andAntenna Group, Electrical and Electronic Engineering Department, Public University of Navarra, 31006 Pamplona, Spain (J.C.I., D.E., I.E., R.G.) rbaigorri@timacagro.es jgmina@unav.es.ORCID http://orcid.org/0000-0001-6352-9612
Universidad de Navarra · ESUniversidad Publica de Navarra · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The physiological and metabolic mechanisms behind the humic acid-mediated plant growth enhancement are discussed in detail. Experiments using cucumber (Cucumis sativus) plants show that the shoot growth enhancement caused by a structurally well-characterized humic acid with sedimentary origin is functionally associated with significant increases in abscisic acid (ABA) root concentration and root hydraulic conductivity. Complementary experiments involving a blocking agent of cell wall pores and water root transport (polyethylenglycol) show that increases in root hydraulic conductivity are essential in the shoot growth-promoting action of the model humic acid. Further experiments involving an inhibitor of ABA biosynthesis in root and shoot (fluridone) show that the humic acid-mediated enhancement of both root hydraulic conductivity and shoot growth depended on ABA signaling pathways. These experiments also show that a significant increase in the gene expression of the main root plasma membrane aquaporins is associated with the increase of root hydraulic conductivity caused by the model humic acid. Finally, experimental data suggest that all of these actions of model humic acid on root functionality, which are linked to its beneficial action on plant shoot growth, are likely related to the conformational structure of humic acid in solution and its interaction with the cell wall at the root surface.

Indexed as

Humic SubstancesPlant TranspirationAbscisic AcidAquaporinsBiological TransportCucumis sativusPlant Growth RegulatorsPlant RootsPlant ShootsRhizosphereWaterAbscisic AcidAquaporinsHumic SubstancesPlant Growth RegulatorsWater

Identifiers

PMID26450705
PMCPMC4677878
OpenAlexW2277067747

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.