Evidence map›Paper›PMID 27146059›Full record

ArticleScientific reports2016

Silencing of sterol glycosyltransferases modulates the withanolide biosynthesis and leads to compromised basal immunity of Withania somnifera.

Gaurav Singh, Manish Tiwari, Surendra Pratap Singh, Surendra Singh, Prabodh Kumar Trivedi, Pratibha Misra

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
14.2field-weighted citation impact, top 1% 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

15 citing papers in PubMed, 48 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Natural Products fromMolecules (Basel, Switzerland) · 2022
    Review
  5. Frontiers in cellular and infection microbiology · 2022
    Review
  6. Article
  7. Frontiers in cellular and infection microbiology · 2021
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Frontiers in plant science · 2017
    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

6 authors at 3 institutions in 1 country.

Gaurav SinghCouncil of Scientific and Industrial Research-National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, Uttar Pradesh, India.
Manish TiwariCouncil of Scientific and Industrial Research-National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, Uttar Pradesh, India.
Surendra Pratap SinghCouncil of Scientific and Industrial Research-National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, Uttar Pradesh, India.
Surendra SinghBanaras Hindu University, Varanasi, Uttar Pradesh, India.
Prabodh Kumar TrivediCouncil of Scientific and Industrial Research-National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, Uttar Pradesh, India.
Pratibha MisraCouncil of Scientific and Industrial Research-National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, Uttar Pradesh, India.
Council of Scientific and Industrial Research · INNational Botanical Research Institute · INBanaras Hindu University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sterol glycosyltransferases (SGTs) catalyse transfer of glycon moiety to sterols and their related compounds to produce diverse glyco-conjugates or steryl glycosides with different biological and pharmacological activities. Functional studies of SGTs from Withania somnifera indicated their role in abiotic stresses but details about role under biotic stress are still unknown. Here, we have elucidated the function of SGTs by silencing SGTL1, SGTL2 and SGTL4 in Withania somnifera. Down-regulation of SGTs by artificial miRNAs led to the enhanced accumulation of withanolide A, withaferin A, sitosterol, stigmasterol and decreased content of withanoside V in Virus Induced Gene Silencing (VIGS) lines. This was further correlated with increased expression of WsHMGR, WsDXR, WsFPPS, WsCYP710A1, WsSTE1 and WsDWF5 genes, involved in withanolide biosynthesis. These variations of withanolide concentrations in silenced lines resulted in pathogen susceptibility as compared to control plants. The infection of Alternaria alternata causes increased salicylic acid, callose deposition, superoxide dismutase and H2O2 in aMIR-VIGS lines. The expression of biotic stress related genes, namely, WsPR1, WsDFS, WsSPI and WsPR10 were also enhanced in aMIR-VIGS lines in time dependent manner. Taken together, our observations revealed that a positive feedback regulation of withanolide biosynthesis occurred by silencing of SGTLs which resulted in reduced biotic tolerance.

Indexed as

Gene SilencingAlternariaBase SequenceBiosynthetic PathwaysGene Expression Regulation, PlantGlycosyltransferasesHost-Pathogen InteractionsIsoenzymesPhytosterolsPlant DiseasesPlant ImmunityPlant ProteinsPlants, Genetically ModifiedSequence Homology, Nucleic AcidWithaniaWithanolidesGlycosyltransferasesIsoenzymesPhytosterolsPlant ProteinsWithanolides

Identifiers

PMID27146059
PMCPMC4857139
OpenAlexW2413422574

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.