Evidence map›Paper›PMID 41125992›Full record

ArticleInternational microbiology : the official journal of the Spanish Society for Microbiology2025

Optimization of auxin production by Streptomyces californicus CLV91 for plant growth promotion.

Mariana V Franções, Guilherme Kenichi Hosaka, Luisa M Ramos, Juan Felipe Fernández Campos, Eliane R Santarém, Leandro V Astarita

Abstract read
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In one paragraph

Article in International microbiology : the official journal of the Spanish Society for Microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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

6 authors.

Mariana V FrançõesPontifical Catholic University of Rio Grande do Sul (PUCRS), School of Health and Life Sciences, Plant Biotechnology Laboratory, Av. Ipiranga, 6681, Partenon, Porto Alegre, 90619-9000, RS, Brazil. mariana.francoes@edu.pucrs.br.
Guilherme Kenichi HosakaBallagro Agro Tecnologia Ltda., Estrada Municipal Carlos Gebim, 2353, Bom Jesus Dos Perdões, 12955-405, SP, Brazil.
Luisa M RamosPontifical Catholic University of Rio Grande do Sul (PUCRS), School of Health and Life Sciences, Plant Biotechnology Laboratory, Av. Ipiranga, 6681, Partenon, Porto Alegre, 90619-9000, RS, Brazil.
Juan Felipe Fernández CamposPontifical Catholic University of Rio Grande do Sul (PUCRS), School of Health and Life Sciences, Plant Biotechnology Laboratory, Av. Ipiranga, 6681, Partenon, Porto Alegre, 90619-9000, RS, Brazil.
Eliane R SantarémPontifical Catholic University of Rio Grande do Sul (PUCRS), School of Health and Life Sciences, Plant Biotechnology Laboratory, Av. Ipiranga, 6681, Partenon, Porto Alegre, 90619-9000, RS, Brazil.
Leandro V AstaritaPontifical Catholic University of Rio Grande do Sul (PUCRS), School of Health and Life Sciences, Plant Biotechnology Laboratory, Av. Ipiranga, 6681, Partenon, Porto Alegre, 90619-9000, RS, Brazil.

Funding

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 001
6 · The paper itself

Abstract

Streptomyces spp. are widely recognized for their capacity to produce bioactive secondary metabolites, including plant growth regulators such as indole-3-acetic acid (IAA), which have promising applications in sustainable agriculture. Streptomyces californicus represents a relatively unexplored species in terms of auxin biosynthesis. This study aimed to evaluate and optimize IAA production by S. californicus CLV91, assessing its potential as a biostimulant. The isolate CLV91 was identified via whole-genome sequencing and cultivated in ISP2 medium under standard and optimized conditions. IAA quantification was performed using the Salkowski colorimetric method. The impact of culture conditions on auxin synthesis was assessed, and plant growth promotion assays were conducted using Phaseolus vulgaris seeds. Under standard conditions, S. californicus CLV91 synthesized 550 µg mL⁻

Indexed as

Indoleacetic AcidsPhaseolusPlant Growth RegulatorsStreptomycesCulture MediaPlant DevelopmentPlant RootsSeedsTryptophanCulture Mediaindoleacetic acidIndoleacetic AcidsPlant Growth RegulatorsTryptophanActinobacteriaBiostimulantPlant growth–promoting rhizobacteria (PGPR)Plant growth regulators

Identifiers

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.