Evidence map›Paper›PMID 16143904›Full record

ArticlePhotosynthesis research2005

Contributions of Theodor Wilhelm Engelmann on phototaxis, chemotaxis, and photosynthesis.

Gerhart Drews

Abstract readBiographyHistorical ArticlePortrait
PubMed Publisher
In one paragraph

Article in Photosynthesis research, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

6 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Dynamics of an algae-bacteria microcosm: Photosynthesis, chemotaxis, and expulsion in inhomogeneous active matter.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Review
  4. Review
  5. Review
  6. 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

1 author at 1 institution in 1 country.

Gerhart DrewsInstitut für Biologie 2, Mikrobiologie, Albert-Ludwigs-Universität, Schänzlestr. 1, 79104, Freiburg, Germany. gerhart.drews@biologie.uni-freiburg.de
University of Freiburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Theodor Wilhelm Engelmann (1843-1909), who had a creative life in music, muscle physiology, and microbiology, developed a sensitive method for tracing the photosynthetic oxygen production of unicellular plants by means of bacterial aerotaxis (chemotaxis). He discovered the absorption spectrum of bacteriopurpurin (bacteriochlorophyll a) and the scotophobic response, photokinesis, and photosynthesis of purple bacteria.

Indexed as

ChemotaxisPhotosynthesisBacteriaGermanyHistory, 19th CenturyHistory, 20th CenturyMicrobiologyOxygenPhotochemistrySulfurOxygenSulfur

Identifiers

PMID16143904
OpenAlexW2063562710

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.