Evidence map›Paper›PMID 18505841›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

Independent origins of syringyl lignin in vascular plants.

Jing-Ke Weng, Xu Li, Jake Stout, Clint Chapple

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
5.9field-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

67 citing papers in PubMed, 183 citations in OpenAlex.

  1. Article
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  5. Accessible versatility underpins the deep evolution of plant specialized metabolism.Phytochemistry reviews : proceedings of the Phytochemical Society of Europe · 2025
    Review
  6. Biotic interactions, evolutionary forces and the pan-plant specialized metabolism.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Review
  7. Plant terrestrialization: an environmental pull on the evolution of multi-sourced streptophyte phenolics.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Review
  8. Current and future perspectives for enhancing our understanding of the evolution of plant metabolism.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Article
  9. Review
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  19. Overexpression of thePlants (Basel, Switzerland) · 2022
    Article
  20. Article

7 more citing papers are in PubMed but not listed here.

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.

Jing-Ke WengDepartment of Biochemistry, Purdue University, 175 South University Street, West Lafayette, IN 47907, USA.
Xu Li
Jake Stout
Clint Chapple
Purdue University West Lafayette · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lycophytes arose in the early Silurian ( approximately 400 Mya) and represent a major lineage of vascular plants that has evolved in parallel with the ferns, gymnosperms, and angiosperms. A hallmark of vascular plants is the presence of the phenolic lignin heteropolymer in xylem and other sclerified cell types. Although syringyl lignin is often considered to be restricted in angiosperms, it has been detected in lycophytes as well. Here we report the characterization of a cytochrome P450-dependent monooxygenase from the lycophyte Selaginella moellendorffii. Gene expression data, cross-species complementation experiments, and in vitro enzyme assays indicate that this P450 is a ferulic acid/coniferaldehyde/coniferyl alcohol 5-hydroxylase (F5H), and is capable of diverting guaiacyl-substituted intermediates into syringyl lignin biosynthesis. Phylogenetic analysis indicates that the Selaginella F5H represents a new family of plant P450s and suggests that it has evolved independently of angiosperm F5Hs.

Indexed as

Amino Acid SequenceArabidopsis ProteinsCytochrome P-450 Enzyme SystemGenetic Complementation TestLigninMixed Function OxygenasesMolecular Sequence DataMutationPhylogenyPlant ProteinsSelaginellaceaeSubstrate SpecificityArabidopsis ProteinsCYP84A1 protein, ArabidopsisCytochrome P-450 Enzyme SystemLigninMixed Function OxygenasesPlant Proteins

Identifiers

PMID18505841
PMCPMC2409400
OpenAlexW2092862591

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.