Polyamine uptake transporter 2 is essential for systemic acquired resistance establishment in Arabidopsis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F25%3A10179187" target="_blank" >RIV/00027006:_____/25:10179187 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15640/25:73632063

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2667064X25003148/pdfft?md5=2381cc0a74dbf2ccd7a722a1c567cc3b&pid=1-s2.0-S2667064X25003148-main.pdf" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2667064X25003148/pdfft?md5=2381cc0a74dbf2ccd7a722a1c567cc3b&pid=1-s2.0-S2667064X25003148-main.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.stress.2025.101046" target="_blank" >10.1016/j.stress.2025.101046</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Polyamine uptake transporter 2 is essential for systemic acquired resistance establishment in Arabidopsis

Popis výsledku v původním jazyce

The study of polyamine transport in plants has become increasingly important due to the central role of these amines in regulating growth, development, adaptation, and stress responses. This research focused on the Arabidopsis thaliana Polyamine Uptake Transporters gene family under conditions of systemic acquired resistance. We evaluated all single mutants of this gene family and found that the put2-1 mutant abolished systemic acquired resistance while enhancing basal resistance to Pseudomonas syringae pv. tomato DC3000. In contrast, the 35S:: PUT2 overexpression lines showed improved resistance and reduced bacterial titers compared to wild-type plants. RNA-seq analysis revealed that the put2-1 mutant had deregulated expression of genes involved in the biosynthesis, signaling, and inactivation of salicylic acid and N-hydroxypipecolic acid. Most of these genes were transcriptionally upregulated by putrescine in wild-type plants, but not in the put2-1 mutant. Putrescine supplementation increased endogenous putrescine and salicylic acid levels in wild-type plants but not in put2-1, highlighting the essential role of this transporter in facilitating putrescine mobilization and regulating salicylic acid in distal tissues. We found that the defective systemic acquired resistance phenotype in the put2-1 mutant was linked to changes in the timing of polyamines, ROS, phenolic compound accumulation, and alterations in stomatal immunity. Our study emphasizes the key role of the Polyamine Uptake Transporter 2 (PUT2/LAT4) in establishing systemic acquired resistance in Arabidopsis, while also maintaining the plant&apos;s intrinsic basal resistance mechanisms. These findings offer valuable insights into the complex mechanisms of plant resistance, positioning polyamine transport as a central hub in systemic responses.

Název v anglickém jazyce

Polyamine uptake transporter 2 is essential for systemic acquired resistance establishment in Arabidopsis

Popis výsledku anglicky

The study of polyamine transport in plants has become increasingly important due to the central role of these amines in regulating growth, development, adaptation, and stress responses. This research focused on the Arabidopsis thaliana Polyamine Uptake Transporters gene family under conditions of systemic acquired resistance. We evaluated all single mutants of this gene family and found that the put2-1 mutant abolished systemic acquired resistance while enhancing basal resistance to Pseudomonas syringae pv. tomato DC3000. In contrast, the 35S:: PUT2 overexpression lines showed improved resistance and reduced bacterial titers compared to wild-type plants. RNA-seq analysis revealed that the put2-1 mutant had deregulated expression of genes involved in the biosynthesis, signaling, and inactivation of salicylic acid and N-hydroxypipecolic acid. Most of these genes were transcriptionally upregulated by putrescine in wild-type plants, but not in the put2-1 mutant. Putrescine supplementation increased endogenous putrescine and salicylic acid levels in wild-type plants but not in put2-1, highlighting the essential role of this transporter in facilitating putrescine mobilization and regulating salicylic acid in distal tissues. We found that the defective systemic acquired resistance phenotype in the put2-1 mutant was linked to changes in the timing of polyamines, ROS, phenolic compound accumulation, and alterations in stomatal immunity. Our study emphasizes the key role of the Polyamine Uptake Transporter 2 (PUT2/LAT4) in establishing systemic acquired resistance in Arabidopsis, while also maintaining the plant&apos;s intrinsic basal resistance mechanisms. These findings offer valuable insights into the complex mechanisms of plant resistance, positioning polyamine transport as a central hub in systemic responses.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

<a href="/cs/project/EH23_021%2F0008909" target="_blank" >EH23_021/0008909: Interdisciplinární přístupy pro vývoj a aplikace nových materiálů v průmyslové, zemědělské a medicinské praxi</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

PLANT STRESS

ISSN

2667-064X

e-ISSN

2667-064X

Svazek periodika

18

Číslo periodika v rámci svazku

DEC 2025

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

19

Strana od-do

101046

Kód UT WoS článku

001588250800001

EID výsledku v databázi Scopus

2-s2.0-105017459523