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Cited by 428

The DOI matches its Crossref record; 50 of the 50 references it cites were found in a registry or an index.

Receptor-Mediated Increase in Cytoplasmic Free Calcium Required for Activation of Pathogen Defense in Parsley

Open access
Blume, Beatrix, Nürnberger, Thorsten, Nass, Norbert, Scheel, Dierk·2000·The Plant Cell

Abstract

Transient influx of Ca(2+) constitutes an early element of signaling cascades triggering pathogen defense responses in plant cells. Treatment with the Phytophthora sojae-derived oligopeptide elicitor, Pep-13, of parsley cells stably expressing apoaequorin revealed a rapid increase in cytoplasmic free calcium ([Ca(2+)](cyt)), which peaked at approximately 1 microM and subsequently declined to sustained values of 300 nM. Activation of this biphasic [Ca(2+)](cyt) signature was achieved by elicitor concentrations sufficient to stimulate Ca(2+) influx across the plasma membrane, oxidative burst, and phytoalexin production. Sustained concentrations of [Ca(2+)](cyt) but not the rapidly induced [Ca(2+)](cyt) transient peak are required for activation of defense-associated responses. Modulation by pharmacological effectors of Ca(2+) influx across the plasma membrane or of Ca(2+) release from internal stores suggests that the elicitor-induced sustained increase of [Ca(2+)](cyt) predominantly results from the influx of extracellular Ca(2+). Identical structural features of Pep-13 were found to be essential for receptor binding, increases in [Ca(2+)](cyt), and activation of defense-associated responses. Thus, a receptor-mediated increase in [Ca(2+)](cyt) is causally involved in signaling the activation of pathogen defense in parsley.

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Metadata

Authors
Blume, B., Nürnberger, T., Nass, N., & Scheel, D.
Venue
The Plant Cell
Published
2000-08
Volume
12
Issue
8
Pages
1425-1440
ISSN
  • 1040-4651 (ISSN-L)
  • 1532-298X
OpenAlex
W2119003709
Cited by
428
References
50
FWCI
33.23
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Receptor-Mediated Increase in Cytoplasmic Free Calcium Required for Activation of Pathogen Defense in Parsley. https://app.cochat.ai/papers/10.1105/tpc.12.8.1425
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Blume, B., Nürnberger, T., Nass, N., & Scheel, D. (2000). Receptor-Mediated Increase in Cytoplasmic Free Calcium Required for Activation of Pathogen Defense in Parsley. The Plant Cell. https://doi.org/10.1105/tpc.12.8.1425

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