ArticlePlant molecular biology2017
Opposite roles of the Arabidopsis cytokinin receptors AHK2 and AHK3 in the expression of plastid genes and genes for the plastid transcriptional machinery during senescence.
Article in Plant molecular biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 70 citations in OpenAlex.
- The role of cytokinin receptors in Arabidopsis thaliana seed development and how they affect the metabolomic profile.Planta · 2025Article
- Over-accumulation of chloroplast-nucleus located WHIRLY1 in barley leads to a decrease in growth and an enhanced stress resistance.The Plant journal : for cell and molecular biology · 2024Article
- Modified Crosstalk between Phytohormones in Arabidopsis Mutants for PEP-Associated Proteins.International journal of molecular sciences · 2024Article
- Cytokinin Modulates Responses to Phytomelatonin inInternational journal of molecular sciences · 2023Article
- Instigating prevalent abiotic stress resilience in crop by exogenous application of phytohormones and nutrient.Frontiers in plant science · 2023Review
- Interpreting Cytokinin Action as Anterograde Signaling and Beyond.Frontiers in plant science · 2021Article
- Cytokinin-Regulated Expression ofBiomolecules · 2020Article
- Article
- Adenine type and diphenyl urea derived cytokinins improve the postharvest performance ofPhysiology and molecular biology of plants : an international journal of functional plant biology · 2018Article
- Phytohormones Regulate the Expression of Nuclear Genes Encoding the Components of the Plastid Transcription Apparatus.Doklady. Biochemistry and biophysics · 2018Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
key messageCytokinin membrane receptors of the Arabidopsis thaliana AHK2 and AHK3 play opposite roles in the expression of plastid genes and genes for the plastid transcriptional machinery during leaf senescence Loss-of-function mutants of Arabidopsis thaliana were used to study the role of cytokinin receptors in the expression of chloroplast genes during leaf senescence. Accumulation of transcripts of several plastid-encoded genes is dependent on the АНК2/АНК3 receptor combination. АНК2 is particularly important at the final stage of plant development and, unlike АНК3, a positive regulator of leaf senescence. Cytokinin-dependent up-regulation of the nuclear encoded genes for chloroplast RNA polymerases RPOTp and RPOTmp suggests that the hormone controls plastid gene expression, at least in part, via the expression of nuclear genes for the plastid transcription machinery. This is further supported by cytokinin dependent regulation of genes for the nuclear encoded plastid σ-factors, SIG1-6, which code for components of the transcriptional apparatus in chloroplasts.
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