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Messner, P. ; Schröder, P.

Burst amplifying system in cell suspension cultures of spruce (Picea abies L-Karst.): Modulation of elicitor-induced release of hydrogen peroxide (oxidative burst) by ionophores and salicylic acid.

J. Appl. Bot. 73, 6-10 (1999)
Open Access Gold möglich sobald Verlagsversion bei der ZB eingereicht worden ist.
The study of the hypersensitive reaction and the functions of H2O2 and salicylic acid (SA) as messenger molecules in tobacco and few other plant species (arabidopsis, soybean) has only yielded insufficient explanation regarding the termination of the programmed cell death and the modulation of the hypersensitive response (HR). The present paper focuses on the interaction between oxidative burst, salicylic acid and the role of calcium as secondary messenger in a spruce cell culture. Evidence is presented that H2O2, and SA-accumulation influence each other and that exceeding concentrations of SA act as signals for the termination of the programmed cell death. From experimental results, a transistor-resistance concept is developed in analogy to an electronic amplifyer which explains the effects observed during HR reactions.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter PLANT-DISEASE RESISTANCE; GLUTATHIONE-S-TRANSFERASE; DEFENSE GENE ACTIVATION; SIGNAL-TRANSDUCTION; ACQUIRED-RESISTANCE; TRANSIENT RELEASE; ACTIVE OXYGEN; K+ EFFLUX; TOBACCO; PARSLEY
ISSN (print) / ISBN 0949-5460
e-ISSN 1439-040X
Zeitschrift Journal of Applied Botany
Quellenangaben Band: 73, Heft: 1-2, Seiten: 6-10 Artikelnummer: , Supplement: ,
Verlag Blackwell
Verlagsort Berlin; Wien
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Biochemical Plant Pathology (BIOP)
Research Unit Microbe-Plant Interactions (AMP)