Evidence map›Paper›PMID 15660269›Full record

ArticlePlant cell reports2005

Genetic transformation of Tylophora indica with Agrobacterium rhizogenes A4: growth and tylophorine productivity in different transformed root clones.

Kuntal Narayan Chaudhuri, Biswajit Ghosh, David Tepfer, Sumita Jha

Abstract read
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In one paragraph

Article in Plant cell reports, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.4field-weighted citation impact, top 21% 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

18 citing papers in PubMed, 92 citations in OpenAlex.

  1. Enhancement of Rosmarinic Acid Production in Hairy Root Cultures ofInternational journal of molecular sciences · 2025
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  4. Natural Products in Renal-Associated Drug Discovery.Antioxidants (Basel, Switzerland) · 2023
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  6. Influence of different3 Biotech · 2018
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  16. 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

4 authors at 2 institutions in 2 countries.

Kuntal Narayan ChaudhuriCentre of Advanced Study in Cell and Chromosome Research, Department of Botany, University of Calcutta, 35 Ballygunge Circular Road, Calcutta 700019, India.
Biswajit Ghosh
David Tepfer
Sumita Jha
University of Calcutta · INInstitut National de la Recherche Agronomique du Niger · NE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have developed an efficient transformation system for Tylophora indica, an important medicinal plant in India, using Agrobacterium rhizogenes strains LBA9402 and A4 to infect excised leaf and stem explants and intact shoots at different sites. The induction of callus and transformed roots was dependent on the bacterial strain, explant type and inoculation site used. Transformed roots were induced only in explants infected with A. rhizogenes strain A4, while an optimal transformation frequency of up to 60% was obtained with intact shoots inoculated at the nodes. The presence of the left-hand transferred DNA (T(L)-DNA) in the genome of T. indica roots induced by A. rhizogenes was confirmed by PCR amplification of the rooting locus genes of A. rhizogenes. Root growth and the production of tylophorine, the major alkaloid of the plant, varied substantially among the nine root clones studied. Both parameters increased over time in liquid cultures, with maximum biomass and tylophorine accumulation occurring within 4-6 weeks of growth in fresh medium. Interestingly, in liquid culture, the culture medium also accumulated tylophorine up to concentrations of 9.78+/-0.21 mg l(-1).

Indexed as

RhizobiumTransformation, GeneticAlkaloidsGenetic EngineeringIndolizinesPhenanthrenesPlant RootsPlants, Genetically ModifiedTime FactorsTissue Culture TechniquesTylophoraAlkaloidsIndolizinesPhenanthrenestylophorine

Identifiers

PMID15660269
OpenAlexW2028493859

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.