Evidence map›Paper›PMID 26747430›Full record

ArticleProtoplasma2017

Improvement in Agrobacterium-mediated transformation of chickpea (Cicer arietinum L.) by the inhibition of polyphenolics released during wounding of cotyledonary node explants.

Reena Yadav, Meenakshi Mehrotra, Aditya K Singh, Abhishek Niranjan, Rani Singh, Indraneel Sanyal, Alok Lehri, Veena Pande, D V Amla

Abstract read
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In one paragraph

Article in Protoplasma, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.9field-weighted citation impact, top 23% 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

13 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. An overview of heat stress in Chickpea (Molecular breeding : new strategies in plant improvement · 2025
    Review
  5. Drought stress inPhysiology and molecular biology of plants : an international journal of functional plant biology · 2024
    Review
  6. Review
  7. Review
  8. Chickpea (Plants (Basel, Switzerland) · 2022
    Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Viruses and Phytoparasitic Nematodes ofFrontiers in plant science · 2018
    Review
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

9 authors at 2 institutions in 1 country.

Reena YadavPlant Transgenic Lab, CSIR-National Botanical Research Institute, PO Box # 436, Rana Pratap Marg, Lucknow, 226 001, UP, India.
Meenakshi MehrotraPlant Transgenic Lab, CSIR-National Botanical Research Institute, PO Box # 436, Rana Pratap Marg, Lucknow, 226 001, UP, India.
Aditya K SinghPlant Transgenic Lab, CSIR-National Botanical Research Institute, PO Box # 436, Rana Pratap Marg, Lucknow, 226 001, UP, India.
Abhishek NiranjanCentral Instrumentation Facility (CIF), CSIR-National Botanical Research Institute, PO box # 436, Rana Pratap Marg, Lucknow, 226 001, UP, India.
Rani SinghPlant Transgenic Lab, CSIR-National Botanical Research Institute, PO Box # 436, Rana Pratap Marg, Lucknow, 226 001, UP, India.
Indraneel SanyalPlant Transgenic Lab, CSIR-National Botanical Research Institute, PO Box # 436, Rana Pratap Marg, Lucknow, 226 001, UP, India.
Alok LehriCentral Instrumentation Facility (CIF), CSIR-National Botanical Research Institute, PO box # 436, Rana Pratap Marg, Lucknow, 226 001, UP, India.
Veena PandeDepartment of Biotechnology, Faculty of Science, University of Kumaun, Bhimtal Campus, Nainital, 263 001, Uttarakhand, India.
D V AmlaPlant Transgenic Lab, CSIR-National Botanical Research Institute, PO Box # 436, Rana Pratap Marg, Lucknow, 226 001, UP, India. dvamla@rediffmail.com.
National Botanical Research Institute · INKumaun University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Agrobacterium-mediated transformation of chickpea (Cicer arietinum L.) has been performed using cotyledonary node explants (CNs), which release phenolics upon excision that are detrimental to the viability of Agrobacterium tumefaciens and result in low transformation frequency. Twelve low molecular weight phenolic compounds and salicylic acid were identified in the exudates released upon excision during the preparation of cotyledonary nodes by reverse phase high-performance liquid chromatography (RP-HPLC). Zone inhibition assays performed with the explant exudates released at periodic intervals after excision showed the inhibition of A. tumefaciens. Agroinoculation of freshly excised cotyledonary nodes of chickpea showed 98-99 % inhibition of colony forming units (cfu). Osmium tetraoxide fixation of excised tissues showed enhanced accumulation of phenolics in the sub-epidermal regions causing enzymatic browning, affecting the viability and performance of A. tumefaciens for T-DNA delivery. The periodic analysis of exudates released from excised CNs showed enhanced levels of gallic acid (0.2945 ± 0.014 μg/g), chlorogenic acid (0.0978 ± 0.0046 μg/g), and quercetin (0.0971 ± 0.0046 μg/g) fresh weight, which were detrimental to A. tumefaciens. Quantitative assays and the elution profile showed the maximum leaching of phenolics, flavonoids, and salicylic acid immediately after the excision of explants and continued till 4 to 8 h post-excision. Pre-treatment of excised explants with inhibitors of polyphenol oxidase like L-cysteine, DTT, and sodium thiosulfate before co-cultivation showed the recovery of A. tumefaciens cfu, decreased the accumulation of phenolics, and improved transformation frequency. Our results show the hypersensitive response of excision stress for the expression of defense response-related genes and synthesis of metabolites in grain legume chickpea against pathogen infestation including Agrobacterium.

Indexed as

Transformation, GeneticAgrobacterium tumefaciensAntioxidantsCatechol OxidaseChromatography, High Pressure LiquidChromatography, Reverse-PhaseCicerColony Count, MicrobialCotyledonDNA, BacterialFlavonoidsGenetic VectorsMass SpectrometryMicrobial Sensitivity TestsMicrobial ViabilityPlants, Genetically ModifiedAntioxidantsCatechol OxidaseDNA, BacterialFlavonoidsPolyphenolsSalicylic AcidT-DNAAgrobacteriumCicer arietinumCotyledonary nodeGallic acidGUSL-cysteinePolyphenol oxidaseQuercetinSalicylic aciduidA

Identifiers

PMID26747430
OpenAlexW2471491630

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.