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Open Access Green as soon as Postprint is submitted to ZB.
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)
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
ISSN (print) / ISBN
0032-0889
e-ISSN
1532-2548
Journal
Plant Physiology
Quellenangaben
Volume: 103,
Issue: 2,
Pages: 407-412
Publisher
American Society of Plant Biologists (ASPB)
Reviewing status
Peer reviewed
Institute(s)
Institute of Biochemical Plant Pathology (BIOP)