Evidence map›Paper›PMID 16514534›Full record

ArticleOecologia2006

Exogenous application of methyl jasmonate elicits defenses in Norway spruce (Picea abies) and reduces host colonization by the bark beetle Ips typographus.

Nadir Erbilgin, Paal Krokene, Erik Christiansen, Gazmend Zeneli, Jonathan Gershenzon

Abstract read
PubMed Publisher
In one paragraph

Article in Oecologia, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 1 pooled it
9.0field-weighted citation impact, top 2% 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

56 citing papers in PubMed, 1 synthesis or guideline pooled it, 186 citations in OpenAlex.

  1. Pooled it
  2. The mutualistic fungi of the bark beetleISME communications · 2026
    Article
  3. Bark beetle (Frontiers in plant science · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Two jasmonic acid carboxyl methyltransferases inFrontiers in plant science · 2023
    Article
  10. Article
  11. Article
  12. Pathophysiology and transcriptomic analysis ofFrontiers in plant science · 2022
    Article
  13. Review
  14. Insights Into the Mechanisms Implicated inFrontiers in plant science · 2021
    Article
  15. Article
  16. Article
  17. Article
  18. 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

5 authors at 2 institutions in 2 countries.

Nadir ErbilginDivision of Insect Biology Department of Environmental Science, Policy and Management University of California, 140 Mulford Hall, Berkeley, CA, 94720, USA. erbilgin@nature.berkeley.edu
Paal Krokene
Erik Christiansen
Gazmend Zeneli
Jonathan Gershenzon
Max Planck Institute for Chemical Ecology · DEUniversity of California, Berkeley · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The terpenoid and phenolic constituents of conifers have been implicated in protecting trees from infestation by bark beetles and phytopathogenic fungi, but it has been difficult to prove these defensive roles under natural conditions. We used methyl jasmonate, a well-known inducer of plant defense responses, to manipulate the biochemistry and anatomy of mature Picea abies (Norway spruce) trees and to test their resistance to attack by Ips typographus (the spruce bark beetle). Bark sections of P. abies treated with methyl jasmonate had significantly less I. typographus colonization than bark sections in the controls and exhibited shorter parental galleries and fewer eggs had been deposited. The numbers of beetles that emerged and mean dry weight per beetle were also significantly lower in methyl jasmonate-treated bark. In addition, fewer beetles were attracted to conspecifics tunneling in methyl jasmonate-treated bark. Stem sections of P. abies treated with methyl jasmonate had an increased number of traumatic resin ducts and a higher concentration of terpenes than untreated sections, whereas the concentration of soluble phenolics did not differ between treatments. The increased amount of terpenoid resin present in methyl jasmonate-treated bark could be directly responsible for the observed decrease in I. typographus colonization and reproduction.

Indexed as

AcetatesCyclopentanesPlant Growth RegulatorsAnimalsColeopteraOxylipinsPiceaPlant BarkResins, PlantTerpenesAcetatesCyclopentanesmethyl jasmonateOxylipinsPlant Growth RegulatorsResins, PlantTerpenes

Identifiers

PMID16514534
OpenAlexW2171834802

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.