Evidence map›Paper›PMID 11854534›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2002

Blue light-induced kinetics of H+ and Ca2+ fluxes in etiolated wild-type and phototropin-mutant Arabidopsis seedlings.

Olga Babourina, Ian Newman, Sergey Shabala

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing 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

41 citing papers in PubMed.

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  17. Calcium: The Missing Link in Auxin Action.Plants (Basel, Switzerland) · 2013
    Review
  18. Article
  19. Article
  20. 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

3 authors.

Olga BabourinaSchool of Mathematics and Physics, and School of Agricultural Science, University of Tasmania, GPO Box 252-21, Hobart, Tasmania 7001, Australia. olga.babourina@utas.edu.au
Ian Newman
Sergey Shabala

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ion flux kinetics associated with blue light (BL) treatment of two wild types (WTs) and the phot1, phot2 and phot1/phot2 mutants of Arabidopsis were studied by using the MIFE noninvasive ion-selective microelectrode technique. BL induced significant changes in activity of H(+) and Ca(2+) transporters within the first 10 min of BL onset, peaking between 3 and 5 min. In all WT plants and in phot2 mutants, BL induced immediate Ca(2+) influx. In phot1 and phot1/phot2 mutants, net Ca(2+) flux remained steady. It is suggested that PHOT1 regulates Ca(2+) uptake into the cytoplasm from the apoplast. Changes in ion fluxes were measured from cotyledons of intact seedlings and from the cut top of the hypocotyl of decapitated seedlings. Thus the photoreceptors mediating BL-induced Ca(2+) and H(+) fluxes are present in the rest of the decapitated seedling and probably in the cotyledons as well. The H(+) and Ca(2+) flux responses to BL appear not to be linked because, (i) when changes were observed for both ions, Ca(2+) flux changed almost immediately, whereas H(+) flux lagged by about 1.5 min; (ii) in the Wassilewskija ecotype, changes in H(+) fluxes were small. Finally, wave-like changes in Ca(2+) and H(+) concentrations were observed along the cotyledon-hook axis regardless of its orientation to the light.

Indexed as

Drosophila ProteinsEye ProteinsLightMutationPhotoreceptor Cells, InvertebrateArabidopsisArabidopsis ProteinsCalciumCryptochromesCytoplasmFlavoproteinsHydrogenHydrogen-Ion ConcentrationIonsKineticsPhosphoproteinsArabidopsis ProteinsCalciumCRY1 protein, Arabidopsiscry protein, DrosophilaCryptochromesDrosophila ProteinsEye ProteinsFlavoproteinsHydrogenIonsNPH1 protein, ArabidopsisPhosphoproteinsPHOT2 protein, ArabidopsisProtein Serine-Threonine KinasesReceptors, G-Protein-Coupled

Identifiers

PMID11854534
PMCPMC122382

What OpenQuestion holds

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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.