Cis- and trans-zeatin differentially modulate plant immunity

Dominik Kilian Grosskinsky; Kerstin Edelsbrunner; Hartwig Pfeifhofer; Eric van der Graaff; Thomas Georg Roitsch

doi:10.4161/psb.24798

Cis- and trans-zeatin differentially modulate plant immunity

Dominik Kilian Grosskinsky, Kerstin Edelsbrunner, Hartwig Pfeifhofer, Eric van der Graaff, Thomas Georg Roitsch

27 Citationer (Scopus)

Abstract

Phytohormones are essential regulators of various processes in plant growth and development. Several phytohormones are also known to regulate plant responses to environmental stress and pathogens. Only recently, cytokinins have been demonstrated to play an important role in plant immunity. Increased levels of cytokinins such as trans-zeatin, which are considered highly active, induced resistance against mainly (hemi)biotrophic pathogens in different plant species. In contrast, cis-zeatin is commonly regarded as a cytokinin exhibiting low or no activity. Here we comparatively study the impact of both zeatin isomers on the infection of Nicotiana tabacum by the (hemi)biotrophic microbial pathogen Pseudomonas syringae. We demonstrate a biological effect of cis-zeatin and a differential effect of the two zeatin isomers on symptom development, defense responses and bacterial multiplication.

Originalsprog	Engelsk
Tidsskrift	Plant Signalling & Behavior
Vol/bind	8
Udgave nummer	7
Sider (fra-til)	e24798
ISSN	1559-2316
DOI	https://doi.org/10.4161/psb.24798
Status	Udgivet - jul. 2013
Udgivet eksternt	Ja

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10.4161/psb.24798

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title = "Cis- and trans-zeatin differentially modulate plant immunity",

abstract = "Phytohormones are essential regulators of various processes in plant growth and development. Several phytohormones are also known to regulate plant responses to environmental stress and pathogens. Only recently, cytokinins have been demonstrated to play an important role in plant immunity. Increased levels of cytokinins such as trans-zeatin, which are considered highly active, induced resistance against mainly (hemi)biotrophic pathogens in different plant species. In contrast, cis-zeatin is commonly regarded as a cytokinin exhibiting low or no activity. Here we comparatively study the impact of both zeatin isomers on the infection of Nicotiana tabacum by the (hemi)biotrophic microbial pathogen Pseudomonas syringae. We demonstrate a biological effect of cis-zeatin and a differential effect of the two zeatin isomers on symptom development, defense responses and bacterial multiplication.",

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T1 - Cis- and trans-zeatin differentially modulate plant immunity

AU - Grosskinsky, Dominik Kilian

AU - Edelsbrunner, Kerstin

AU - Pfeifhofer, Hartwig

AU - van der Graaff, Eric

AU - Roitsch, Thomas Georg

PY - 2013/7

Y1 - 2013/7

N2 - Phytohormones are essential regulators of various processes in plant growth and development. Several phytohormones are also known to regulate plant responses to environmental stress and pathogens. Only recently, cytokinins have been demonstrated to play an important role in plant immunity. Increased levels of cytokinins such as trans-zeatin, which are considered highly active, induced resistance against mainly (hemi)biotrophic pathogens in different plant species. In contrast, cis-zeatin is commonly regarded as a cytokinin exhibiting low or no activity. Here we comparatively study the impact of both zeatin isomers on the infection of Nicotiana tabacum by the (hemi)biotrophic microbial pathogen Pseudomonas syringae. We demonstrate a biological effect of cis-zeatin and a differential effect of the two zeatin isomers on symptom development, defense responses and bacterial multiplication.

AB - Phytohormones are essential regulators of various processes in plant growth and development. Several phytohormones are also known to regulate plant responses to environmental stress and pathogens. Only recently, cytokinins have been demonstrated to play an important role in plant immunity. Increased levels of cytokinins such as trans-zeatin, which are considered highly active, induced resistance against mainly (hemi)biotrophic pathogens in different plant species. In contrast, cis-zeatin is commonly regarded as a cytokinin exhibiting low or no activity. Here we comparatively study the impact of both zeatin isomers on the infection of Nicotiana tabacum by the (hemi)biotrophic microbial pathogen Pseudomonas syringae. We demonstrate a biological effect of cis-zeatin and a differential effect of the two zeatin isomers on symptom development, defense responses and bacterial multiplication.

U2 - 10.4161/psb.24798

DO - 10.4161/psb.24798

M3 - Journal article

SN - 1559-2316

VL - 8

SP - e24798

JO - Plant Signalling & Behavior

JF - Plant Signalling & Behavior

IS - 7

ER -

Cis- and trans-zeatin differentially modulate plant immunity

Abstract

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