Evidence map›Paper›PMID 33656286›Full record

ArticleCurrent protocols2021

Automated Laboratory Growth Assessment and Maintenance of Azotobacter vinelandii.

Brooke M Carruthers, Amanda K Garcia, Alex Rivier, Betul Kacar

Erratum issuedAbstract read
PubMed Publisher
In one paragraph

Article in Current protocols, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Sentinel plants enable quantitative monitoring of bioavailable nitrate in soils and microbial environments.Proceedings of the National Academy of Sciences of the United States of America · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Brooke M CarruthersDepartment of Molecular and Cellular Biology, University of Arizona, Tucson, Arizona.
Amanda K GarciaDepartment of Molecular and Cellular Biology, University of Arizona, Tucson, Arizona.
Alex RivierDepartment of Molecular and Cellular Biology, University of Arizona, Tucson, Arizona.
Betul KacarDepartment of Molecular and Cellular Biology, University of Arizona, Tucson, Arizona.

Funding

NASA Early Career Faculty 80NSSC19K1617NSF Emerging Frontiers Program 1724090University of Arizona Foundation Small Grants Program
6 · The paper itself

Abstract

Azotobacter vinelandii (A. vinelandii) is a commonly used model organism for the study of aerobic respiration, the bacterial production of several industrially relevant compounds, and, perhaps most significantly, the genetics and biochemistry of biological nitrogen fixation. Laboratory growth assessments of A. vinelandii are useful for evaluating the impact of environmental and genetic modifications on physiological properties, including diazotrophy. However, researchers typically rely on manual growth methods that are oftentimes laborious and inefficient. We present a protocol for the automated growth assessment of A. vinelandii on a microplate reader, particularly well-suited for studies of diazotrophic growth. We discuss common pitfalls and strategies for protocol optimization, and demonstrate the protocol's application toward growth evaluation of strains carrying modifications to nitrogen-fixation genes. © 2021 The Authors. Basic Protocol 1: Preparation of A. vinelandii plate cultures from frozen stock Basic Protocol 2: Preparation of A. vinelandii liquid precultures Basic Protocol 3: Automated growth rate experiment of A. vinelandii on a microplate reader.

Indexed as

Azotobacter vinelandiiLaboratoriesNitrogenaseNitrogen FixationNitrogenaseAzotobacter vinelandiibacterial growthmicroplate readernitrogenasenitrogen fixation

Identifiers

PMID33656286

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.