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Chloroplast redox state changes mark cell-to-cell signaling in the hypersensitive response [Elektronski vir]Lukan, Tjaša ...Hypersensitive response (HR)-conferred resistance is associated with induction of pro-grammed cell death and pathogen spread restriction in its proximity. The exact role of chloro-plastic reactive ... oxygen species and its link with salicylic acid (SA) signaling in HR remainunexplained. To unravel this, we performed a detailed spatiotemporal analysis of chloroplast redoxresponse in palisade mesophyll and upper epidermis to potato virus Y (PVY) infection in aresistant potato genotype and its transgenic counterpart with impaired SA accumulation andcompromised resistance. Besides the cells close to the cell death zone, we detected individual cells with oxidizedchloroplasts further from the cell death zone. These are rare in SA-deficient plants, suggestingtheir role in signaling for resistance. We confirmed that chloroplast redox changes play impor-tant roles in signaling for resistance, as blocking chloroplast redox changes affected spatialresponses at the transcriptional level. Through spatiotemporal study of stromule induction after PVY infection, we show that stro-mules are induced by cell death and also as a response to PVY multiplication at the front ofinfection. Overall induction of stromules is attenuated in SA-deficient plants.Source: The new phytologist [Elektronski vir]. - ISSN 1469-8137 (Vol. 237, iss. 2, Jan. 2023, str. 548-562)Type of material - e-article ; adult, seriousPublish date - 2023Language - englishCOBISS.SI-ID - 121824771
Author
Lukan, Tjaša |
Županič, Anže |
Mahkovec Povalej, Tjaša |
Brunkard, Jacob O. |
Kmetič, Mirjam |
Juteršek, Mojca, biokemičarka |
Baebler, Špela |
Gruden, Kristina
Topics
chloroplast redox state |
hypersensitive response (HR)-conferred resistance |
immune signaling |
live cell imaging |
Solanum tuberosum (potato) |
spatiotemporal analysis |
stromules |
virus resistance |
redoks stanje kloroplastov |
krompir |
preobčutljivostni odgovor |
rastlinska imunska signalizacija
Author | Lukan, Tjaša ... |
Title | Chloroplast redox state changes mark cell-to-cell signaling in the hypersensitive response [Elektronski vir] |
Publication date | 2022-08-10 |
COBISS.SI-ID | 121824771 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution-NonCommercial 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
---|---|---|---|
Biotehnologija in sistemska biologija rastlin | P4-0165-2022 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Prostorsko časovna analiza hipersenzitivnega odziva krompirja na krompirjev virus Y | J4-7636-2016 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Medsebojna povezanost z redoks stanjem posredovane signalizacije pri odpornosti krompirja na viruse | Z4-3217-2021 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Odkrivanje mehanizmov učinkovitosti in specifičnosti imunske signalizacije v krompirju z inovativnim pridobivanjem podatkov in modeliranjem | J4-1777-2019 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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APC – Article Processing Charge | 4400.00 € |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Lukan, Tjaša | 36323 |
Županič, Anže | 27522 |
Mahkovec Povalej, Tjaša | 55238 |
Brunkard, Jacob O. | |
Kmetič, Mirjam | |
Juteršek, Mojca, biokemičarka | 51987 |
Baebler, Špela | 19116 |
Gruden, Kristina | 12688 |
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