Evidence map›Paper›PMID 19151929›Full record

ArticleJournal of chemical ecology2009

Megalanthine, a bioactive sesquiterpenoid from Heliotropium megalanthum, its degradation products and their bioactivities.

Francisco A Macías, Ana M Simonet, Brigida D'Abrosca, Claudia C Maya, Matías Reina, Azucena González-Coloma, Raimundo Cabrera, Cristina Giménez, Luis Villarroel

Abstract read
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In one paragraph

Article in Journal of chemical ecology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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

1 citing paper in PubMed.

  1. The Chemical Ecology of Plant Natural Products.Progress in the chemistry of organic natural products · 2024
    Review
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

9 authors.

Francisco A MacíasDepartamento de Química Orgánica, Universidad de Cádiz, Puerto Real, Spain. famacias@uca.es.
Ana M Simonet
Brigida D'Abrosca
Claudia C Maya
Matías Reina
Azucena González-Coloma
Raimundo Cabrera
Cristina Giménez
Luis Villarroel

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The new bioactive sesquiterpenoid (3R,6E)-2,6,10-trimethyl-3-(3-p-hydroxyphenylpropanoyloxy)-dodeca-6,11-diene-2,10-diol, named megalanthine, was isolated from the resinous exudates of Heliotropium megalanthum. The degradation products of this compound were identified. Several plant-defensive properties (insecticidal, antifungal, and phytotoxic) were evaluated after obtaining positive results in a preliminary etiolated wheat coleoptile bioassay. This bioassay showed the need to have both the phenolic and sesquiterpene moieties of the natural product present to achieve a biological effect. This result was confirmed in phytotoxicity bioassays. Megalanthine was ruled out as a significant plant-plant defense agent because of its lack of stability. The positive results recorded in the antifungal and antifeedant tests suggest, however, that this chemical is relevant in several ecological interactions involving H. megalanthum.

Indexed as

AnimalsAntifungal AgentsBiological AssayCells, CulturedCHO CellsCotyledonCricetinaeCricetulusFungiHeliotropiumInsecticidesLactucaMicrobial Sensitivity TestsOnionsPhenylpropionatesPlant Roots2,6,10-trimethyl-3-(3-p-hydroxyphenylpropanoyloxy)-dodeca-6,11-diene-2,10-diolAntifungal AgentsInsecticidesPhenylpropionates

Identifiers

What OpenQuestion holds

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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.