Induction of wound response gene expression in tomato leaves by ionophores

Schaller, Andreas; Frasson, David

doi:10.1007/s004250000413

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Induction of wound response gene expression in tomato leaves by ionophores
Authors:	Schaller, Andreas Frasson, David
DOI:	10.1007/s004250000413
Published in:	Planta
Volume(Issue):	212
Issue:	3
Page(s):	431
Pages to:	435
Issue Date:	2001
Publisher / Ed. Institution:	Springer
ISSN:	0032-0935 1432-2048
Language:	English
Subject (DDC):	580: Plants (Botany)
Abstract:	Three ionophores were used to investigate a potential role of the plasma-membrane (PM) potential in the regulation of systemic wound-response gene expression in tomato (Lycopersicon escuilentum Mill.) plants. Valinomycin, nigericin, and gramicidin, which affect the PM potential by dissipating H+ and K+ gradients, respectively, induced the rapid accumulation of wound-response gene transcripts. Transcript induction by gramicidin was kinetically, qualitatively and quantitatively similar to systemin-induced transcript accumulation. On a molar basis, gramicidin and nigericin, which affect gradients of both H+ and K+, were more effective than the K+-selective valinomycin. Hyperpolarization of the PM by fusicoccin, on the other hand, repressed wound-response gene expression and, at the same time, induced salicylic acid (SA) accumulation and the expression of pathogenesis-related proteins. We show here that the inhibition of the wound response after fusicoccin treatment is not mediated by elevated concentrations of SA but is likely a direct effect of PM hyperpolarization. The data indicate a role for the PM potential in the differential regulation of wound and pathogen defense responses.
URI:	https://digitalcollection.zhaw.ch/handle/11475/15307
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	Life Sciences and Facility Management
Appears in collections:	Publikationen Life Sciences und Facility Management

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Schaller, A., & Frasson, D. (2001). Induction of wound response gene expression in tomato leaves by ionophores. Planta, 212(3), 431–435. https://doi.org/10.1007/s004250000413

Schaller, A. and Frasson, D. (2001) ‘Induction of wound response gene expression in tomato leaves by ionophores’, Planta, 212(3), pp. 431–435. Available at: https://doi.org/10.1007/s004250000413.

A. Schaller and D. Frasson, “Induction of wound response gene expression in tomato leaves by ionophores,” Planta, vol. 212, no. 3, pp. 431–435, 2001, doi: 10.1007/s004250000413.

SCHALLER, Andreas und David FRASSON, 2001. Induction of wound response gene expression in tomato leaves by ionophores. Planta. 2001. Bd. 212, Nr. 3, S. 431–435. DOI 10.1007/s004250000413

Schaller, Andreas, and David Frasson. 2001. “Induction of Wound Response Gene Expression in Tomato Leaves by Ionophores.” Planta 212 (3): 431–35. https://doi.org/10.1007/s004250000413.

Schaller, Andreas, and David Frasson. “Induction of Wound Response Gene Expression in Tomato Leaves by Ionophores.” Planta, vol. 212, no. 3, 2001, pp. 431–35, https://doi.org/10.1007/s004250000413.