Chemically Induced Resistance to Pathogen Infection in Arabidopsis by Cytokinin (Trans-Zeatin) and an Aromatic Cytokinin Arabinoside
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F26%3A00646110" target="_blank" >RIV/61389030:_____/26:00646110 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1111/mpp.70200" target="_blank" >https://doi.org/10.1111/mpp.70200</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/mpp.70200" target="_blank" >10.1111/mpp.70200</a>
Alternative languages
Result language
angličtina
Original language name
Chemically Induced Resistance to Pathogen Infection in Arabidopsis by Cytokinin (Trans-Zeatin) and an Aromatic Cytokinin Arabinoside
Original language description
This study compares the ability of the cytokinin (CK) trans-zeatin (tZ) and the CK sugar conjugate 6-(3-methoxybenzylamino)purine-9-arabinoside (BAPA) to induce resistance against the bacterial pathogen Pseudomonas syringae in Arabidopsis thaliana. Treatment with either tZ or BAPA significantly reduced bacterial growth after a later infection. This chemically induced resistance (IR) required the CK receptor AHK3, highlighting its critical role in mediating resistance by tZ and BAPA. This is remarkable as these compounds show either high or no affinity for this CK receptor, respectively. Surprisingly, tZ, but not BAPA, induced the expression of CK response genes, including ARR5, suggesting divergent mechanisms of action. Resistance caused by both compounds was abolished in the npr1 mutant, underpinning the functional relevance of the salicylic acid (SA) signalling pathway. Transcriptomic analysis showed that both BAPA and tZ triggered the expression of distinct sets of genes associated with SA and reactive oxygen species (ROS) but not with jasmonic acid (JA) signalling. BAPA and, to a lesser extent, also tZ activated pattern-triggered immunity (PTI) signalling genes, including genes responsible for PTI signal amplification (PREPIP2) and pathogen-associated molecular pattern (PAMP) signalling (PH1, IDL6). This supported the hypothesis that the PTI pathway mediates the protective effect. Similarities and differences of chemically triggered IR by tZ and BAPA, as well as their potential for application, are discussed.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10611 - Plant sciences, botany
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2026
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Molecular Plant Pathology
ISSN
1464-6722
e-ISSN
1364-3703
Volume of the periodical
27
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
e70200
UT code for WoS article
001659172100001
EID of the result in the Scopus database
2-s2.0-105027029585