A genome-wide association study reveals cytokinin as a major component in the root defense responses against Ralstonia solanacearum

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F21%3A73610130" target="_blank" >RIV/61989592:15310/21:73610130 - isvavai.cz</a>
Result on the web
<a href="https://academic.oup.com/jxb/article/72/7/2727/6105072" target="_blank" >https://academic.oup.com/jxb/article/72/7/2727/6105072</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/jxb/eraa610" target="_blank" >10.1093/jxb/eraa610</a>

Result language
angličtina
Original language name
A genome-wide association study reveals cytokinin as a major component in the root defense responses against Ralstonia solanacearum
Original language description
Bacterial wilt caused by the soil-borne pathogen Ralstonia solancearum is economically devastating, with no effective methods to fight the disease. This pathogen invades plants through their roots and colonizes their xylem, clogging the vasculature and causing rapid wilting. Key to preventing colonization are the early defense responses triggered in the host's root upon infection, which remain mostly unknown. Here, we have taken advantage of a high-throughput in vitro infection system to screen natural variability associated with the root growth inhibition phenotype caused by R. solanacearum in Arabidopsis during the first hours of infection. To analyze the genetic determinants of this trait, we have performed a genome-wide association study, identifying allelic variation at several loci related to cytokinin metabolism, including genes responsible for biosynthesis and degradation of cytokinin. Further, our data clearly demonstrate that cytokinin signaling is induced early during the infection process and cytokinin contributes to immunity against R. solanacearum. This study highlights a new role for cytokinin in root immunity, paving the way for future research that will help in understanding the mechanisms underpinning root defenses.
Czech name
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Czech description
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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

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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