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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
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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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
ISSN (print) / ISBN
0032-0889
e-ISSN
1532-2548
Zeitschrift
Plant Physiology
Quellenangaben
Band: 103,
Heft: 2,
Seiten: 407-412
Verlag
American Society of Plant Biologists (ASPB)
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Biochemical Plant Pathology (BIOP)