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Bach, M.* ; Schnitzler, J.-P. ; Seitz, H.U.*

Elicitor-induced changes in Ca2+ influx, K+ efflux, and 4-hydroxybenzoic acid synthesis in protoplasts of Daucus carota L.

Plant Physiol. 103, 407-412 (1993)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
Suspension-cultured carrot cells (Daucus carota) and their protoplasts respond to a fungal elicitor prepared from the culture medium of Pythium aphanidermatum by accumulating 4-hydroxybenzoic acid (4-HBA). Protoplasts release the compound into the culture medium. Using 45CaCl2 as a tracer, we were able to demonstrate that the secretion of 4-HBA is preceded by a rapid increase in the Ca2+ influx and a concomitant K+ efflux. If the increased Ca2+ influx was prevented by ethyleneglycol-bis(β-aminoethyl ether)-N,N′-tetraacetic acid, 4-HBA synthesis was inhibited by 70%. These results are discussed with regard to signal transduction from the plasma membrane to the nucleus of carrot protoplasts.
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Publication type Article: Journal article
Document type Scientific Article
Language english
Publication Year 1993
HGF-reported in Year 0
ISSN (print) / ISBN 0032-0889
e-ISSN 1532-2548
Quellenangaben Volume: 103, Issue: 2, Pages: 407-412 Article Number: , Supplement: ,
Publisher American Society of Plant Biologists (ASPB)
Reviewing status Peer reviewed
Scopus ID 0027135693
PubMed ID 12231948
Erfassungsdatum 1993-10-30