Evidence map›Paper›PMID 22398443›Full record

ArticleNature2012

A petunia ABC protein controls strigolactone-dependent symbiotic signalling and branching.

Tobias Kretzschmar, Wouter Kohlen, Joelle Sasse, Lorenzo Borghi, Markus Schlegel, Julien B Bachelier, Didier Reinhardt, Ralph Bours, Harro J Bouwmeester, Enrico Martinoia

Abstract read
PubMed Publisher
In one paragraph

Article in Nature, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 218 papers.

0numbers the graph read from it
0cells of the map it votes in
218citing 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

218 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. Towards an integrated molecular understanding of plant hormones.Journal of integrative plant biology · 2026
    Review
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Review
  20. Article

158 more citing papers are in PubMed but not listed here.

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

10 authors.

Tobias KretzschmarInstitute of Plant Biology, University of Zurich, 8008 Zurich, Switzerland. t.kretzschmar@irri.org
Wouter Kohlen
Joelle Sasse
Lorenzo Borghi
Markus Schlegel
Julien B Bachelier
Didier Reinhardt
Ralph Bours
Harro J Bouwmeester
Enrico Martinoia

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Strigolactones were originally identified as stimulators of the germination of root-parasitic weeds that pose a serious threat to resource-limited agriculture. They are mostly exuded from roots and function as signalling compounds in the initiation of arbuscular mycorrhizae, which are plant-fungus symbionts with a global effect on carbon and phosphate cycling. Recently, strigolactones were established to be phytohormones that regulate plant shoot architecture by inhibiting the outgrowth of axillary buds. Despite their importance, it is not known how strigolactones are transported. ATP-binding cassette (ABC) transporters, however, are known to have functions in phytohormone translocation. Here we show that the Petunia hybrida ABC transporter PDR1 has a key role in regulating the development of arbuscular mycorrhizae and axillary branches, by functioning as a cellular strigolactone exporter. P. hybrida pdr1 mutants are defective in strigolactone exudation from their roots, resulting in reduced symbiotic interactions. Above ground, pdr1 mutants have an enhanced branching phenotype, which is indicative of impaired strigolactone allocation. Overexpression of Petunia axillaris PDR1 in Arabidopsis thaliana results in increased tolerance to high concentrations of a synthetic strigolactone, consistent with increased export of strigolactones from the roots. PDR1 is the first known component in strigolactone transport, providing new opportunities for investigating and manipulating strigolactone-dependent processes.

Indexed as

Abscisic AcidArabidopsisATP-Binding Cassette TransportersGene Expression Regulation, PlantGerminationLactonesMolecular Sequence DataMycorrhizaeNaphthaleneacetic AcidsPetuniaPhenotypePlant Growth RegulatorsPlant ProteinsPlant RootsSignal TransductionSymbiosis1-naphthaleneacetic acidAbscisic AcidATP-Binding Cassette TransportersGR24 compoundLactonesNaphthaleneacetic AcidsorobancholPlant Growth RegulatorsPlant Proteins

Identifiers

PMID22398443

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.