Evidence map›Paper›PMID 10890899›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2000

Calcium release from the endoplasmic reticulum of higher plants elicited by the NADP metabolite nicotinic acid adenine dinucleotide phosphate.

L Navazio, M A Bewell, A Siddiqua, G D Dickinson, A Galione, D Sanders

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing 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

49 citing papers in PubMed.

  1. Article
  2. Article
  3. Monitoring calcium handling by the plant endoplasmic reticulum with a low-CaThe Plant journal : for cell and molecular biology · 2022
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. The Hydrophobin HYTLO1 Secreted by the Biocontrol FungusInternational journal of molecular sciences · 2018
    Article
  13. Endoplasmic reticulum-localized CCX2 is required for osmotolerance by regulating ER and cytosolic CaProceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Calcium Signals from the Vacuole.Plants (Basel, Switzerland) · 2013
    Review
  20. Article
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.

L NavazioThe Plant Laboratory, Biology Department, University of York, P.O. Box 373, York YO10 5YW, United Kingdom.
M A Bewell
A Siddiqua
G D Dickinson
A Galione
D Sanders

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Higher plants share with animals a responsiveness to the Ca(2+) mobilizing agents inositol 1,4,5-trisphosphate (InsP(3)) and cyclic ADP-ribose (cADPR). In this study, by using a vesicular (45)Ca(2+) flux assay, we demonstrate that microsomal vesicles from red beet and cauliflower also respond to nicotinic acid adenine dinucleotide phosphate (NAADP), a Ca(2+)-releasing molecule recently described in marine invertebrates. NAADP potently mobilizes Ca(2+) with a K(1/2) = 96 nM from microsomes of nonvacuolar origin in red beet. Analysis of sucrose gradient-separated cauliflower microsomes revealed that the NAADP-sensitive Ca(2+) pool was derived from the endoplasmic reticulum. This exclusively nonvacuolar location of the NAADP-sensitive Ca(2+) pathway distinguishes it from the InsP(3)- and cADPR-gated pathways. Desensitization experiments revealed that homogenates derived from cauliflower tissue contained low levels of NAADP (125 pmol/mg) and were competent in NAADP synthesis when provided with the substrates NADP and nicotinic acid. NAADP-induced Ca(2+) release is insensitive to heparin and 8-NH(2)-cADPR, specific inhibitors of the InsP(3)- and cADPR-controlled mechanisms, respectively. However, NAADP-induced Ca(2+) release could be blocked by pretreatment with a subthreshold dose of NAADP, as previously observed in sea urchin eggs. Furthermore, the NAADP-gated Ca(2+) release pathway is independent of cytosolic free Ca(2+) and therefore incapable of operating Ca(2+)-induced Ca(2+) release. In contrast to the sea urchin system, the NAADP-gated Ca(2+) release pathway in plants is not blocked by L-type channel antagonists. The existence of multiple Ca(2+) mobilization pathways and Ca(2+) release sites might contribute to the generation of stimulus-specific Ca(2+) signals in plant cells.

Indexed as

BrassicaCalciumChenopodiaceaeEndoplasmic Reticulum, RoughIntracellular MembranesMicrosomesNADPPlant RootsCalciumNAADPNADP

Identifiers

PMID10890899
PMCPMC27010

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.