Evidence map›Paper›PMID 34679089›Full record

ArticlePloS one2021

Carnivorous Nepenthes x ventrata plants use a naphthoquinone as phytoanticipin against herbivory.

Alberto Dávila-Lara, Asifur Rahman-Soad, Michael Reichelt, Axel Mithöfer

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

15 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Article
  3. Phenolic Secondary Metabolites inMolecules (Basel, Switzerland) · 2025
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  4. Review
  5. External Glands ofInternational journal of molecular sciences · 2025
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  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Stellate Trichomes inInternational journal of molecular sciences · 2022
    Article
  15. 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

4 authors at 1 institution in 1 country.

Alberto Dávila-LaraResearch Group Plant Defense Physiology, Max Planck Institute for Chemical Ecology, Jena, Germany.ORCID 0000-0002-7595-8251
Asifur Rahman-SoadResearch Group Plant Defense Physiology, Max Planck Institute for Chemical Ecology, Jena, Germany.
Michael ReicheltDepartment of Biochemistry, Max Planck Institute for Chemical Ecology Jena, Germany.ORCID 0000-0002-6691-6500
Axel MithöferResearch Group Plant Defense Physiology, Max Planck Institute for Chemical Ecology, Jena, Germany.ORCID 0000-0001-5229-6913
Max Planck Institute for Chemical Ecology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Carnivorous plants feed on animal prey, mainly insects, to get additional nutrients. This carnivorous syndrome is widely investigated and reported. In contrast, reports on herbivores feeding on carnivorous plants and related defenses of the plants under attack are rare. Here, we studied the interaction of a pitcher plant, Nepenthes x ventrata, with a generalist lepidopteran herbivore, Spodoptera littoralis, using a combination of LC/MS-based chemical analytics, choice and feeding assays. Chemical defenses in N. x ventrata leaves were analyzed upon S. littoralis feeding. A naphthoquinone, plumbagin, was identified in Nepenthes defense against herbivores and as the compound mainly responsible for the finding that S. littoralis larvae gained almost no weight when feeding on Nepenthes leaves. Plumbagin is constitutively present but further 3-fold increased upon long-term (> 1 day) feeding. Moreover, in parallel de novo induced trypsin protease inhibitor (TI) activity was identified. In contrast to TI activity, enhanced plumbagin levels were not phytohormone inducible, not even by defense-related jasmonates although upon herbivory their level increased more than 50-fold in the case of the bioactive jasmonic acid-isoleucine. We conclude that Nepenthes is efficiently protected against insect herbivores by naphthoquinones acting as phytoanticipins, which is supported by additional inducible defenses. The regulation of these defenses remains to be investigated.

Indexed as

Abscisic AcidAnimalsCarnivorous PlantCyclopentanesDietHerbivoryLarvaNaphthoquinonesOxylipinsPhytochemicalsPlant Growth RegulatorsPlant LeavesProtease InhibitorsSalicylic AcidSarraceniaceaeSpodopteraAbscisic AcidCyclopentanesjasmonic acidNaphthoquinonesOxylipinsPhytochemicalsPlant Growth RegulatorsplumbaginProtease InhibitorsSalicylic Acid

Identifiers

PMID34679089
PMCPMC8535358
OpenAlexW3207716307

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.