Evidence map›Paper›PMID 11106370›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2000

A maize sesquiterpene cyclase gene induced by insect herbivory and volicitin: characterization of wild-type and mutant alleles.

B Shen, Z Zheng, H K Dooner

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

43 citing papers in PubMed, 108 citations in OpenAlex.

  1. Mildew-Induced Resistance in Roses AgainstMolecules (Basel, Switzerland) · 2026
    Article
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  3. The Chemical Ecology of Plant Natural Products.Progress in the chemistry of organic natural products · 2024
    Review
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  5. Identification and functional analysis ofFrontiers in plant science · 2023
    Article
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  17. Review
  18. Active role of fatty acid amino acid conjugates in nitrogen metabolism in Spodoptera litura larvae.Proceedings of the National Academy of Sciences of the United States of America · 2008
    Article
  19. Article
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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

3 authors at 1 institution in 1 country.

B ShenWaksman Institute of Microbiology, Rutgers University, Piscataway, NJ 08854, USA.
Z Zheng
H K Dooner
Rutgers, The State University of New Jersey · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plants can defend themselves from herbivorous insects by emitting volatile chemical signals that attract natural enemies of the herbivore. For example, maize seedlings attacked by beet armyworm larvae (Spodoptera exigua) produce a mixture of terpenoid and indole volatiles that serve to attract parasitic wasps. A key step in terpenoid biosynthesis is the conversion of acyclic prenyl diphosphates to terpenoid compounds by specific terpenoid synthases (cyclases). We have cloned a maize sesquiterpene cyclase gene, stc1, by transposon tagging and have identified two deletion mutations of the gene. The stc1 gene is located on chromosome 9S and does not seem to have a closely related ortholog in the maize genome. It is induced 15- to 30-fold in maize leaves by beet armyworm larvae feeding or by application of purified volicitin, the insect-derived elicitor, at a mechanically wounded site. stc1 induction is systemic, because undamaged leaves of the same plant show a similar increase in stc1 transcription. Analysis of volatiles from volicitin-treated seedlings revealed that a major naphthalene-based sesquiterpene was present in wild-type seedlings but absent in the Ac-insertion and x-ray-deletion mutants. Therefore, we have identified a maize gene that responds to caterpillar herbivory by producing a chemical defense signal that most likely serves to attract natural enemies of the herbivore.

Indexed as

AllelesGenes, PlantAmino Acid SequenceAnimalsBase SequenceCarbon-Carbon LyasesDNA, PlantEnzyme InductionFatty AcidsFeeding BehaviorGene Expression Regulation, DevelopmentalGene Expression Regulation, EnzymologicGene Expression Regulation, PlantMolecular Sequence DataMutationNaphthalenesCarbon-Carbon LyasesDNA, PlantFatty AcidsnaphthaleneNaphthalenesSesquiterpenestrichodiene synthetase

Identifiers

PMID11106370
PMCPMC19000
OpenAlexW2053202727

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.