Loss-of-function mutation in SCY1 triggers chloroplast-to-nucleus retrograde signaling in Arabidopsis thaliana

Liu, D.; Wu, Ziming; Hou, Ling

doi:10.1007/s10535-015-0514-1

Cited by 3 publications

(2 citation statements)

References 40 publications

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“…The nding that SCY1 is strongly downregulated after 24 h and consistently at 120 h opens new insights on the possible SAP11 impact on chloroplast. SCY1 is involved in preprotein localization to the thylakoid [70] and mutant plants for SCY1 show impairment in thylakoid biogenesis [71] with a chloroplast-to-nucleus retrograde signal whit impaired production of nuclearencoded chloroplast proteins [72] and chlorotic phenotypes [73]. During darkness periods SCY1 increases in content in the chloroplast which would increase the import of nuclear-encoded proteins [74].…”

Section: Discussionmentioning

confidence: 99%

'Candidatus Phytoplasma mali' SAP11-Like protein modulates expression of genes involved in metabolic pathways, photosynthesis, and defense in Nicotiana occidentalis leaves.

Mittelberger,

Moser,

Hause

et al. 2024

Preprint

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Background: 'Candidatus Phytoplasma mali', the causal agent of apple proliferation disease, exerts influence on its host plant through various effector proteins, including SAP11CaPm which interacts with different TCP transcription factors. This study examines the transcriptional response of the plant upon early expression of SAP11CaPm. For that purpose, leaves of Nicotiana occidentalis H.-M. Wheeler were Agrobacterium-infiltrated to induce transient expression of SAP11CaPm and changes in the transcriptome were recorded until 5 days post infection. Results: The analysis revealed that presence of SAP11CaPm in leaves leads to downregulation of genes involved in defense response and related to photosynthetic processes, while expression of genes involved in metabolic pathways was enhanced. Conclusions: The results indicate that early SAP11CaPm expression might be important for the colonization of the host plant since phytoplasmas lack many metabolic genes and are thus dependent on metabolites from their host plant.

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Section: Discussionmentioning

confidence: 99%

'Candidatus Phytoplasma mali' SAP11-Like protein modulates expression of genes involved in metabolic pathways, photosynthesis, and defense in Nicotiana occidentalis leaves.

Mittelberger,

Moser,

Hause

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…The finding that SCY1 is strongly downregulated after 24 h and consistently at 120 h opens new insights on the possible SAP11 impact on chloroplast. SCY1 is involved in preprotein localization to the thylakoid [ 74 ] and mutant plants for SCY1 show impairment in thylakoid biogenesis [ 75 ] with a chloroplast-to-nucleus retrograde signal whit impaired production of nuclear-encoded chloroplast proteins [ 76 ] and chlorotic phenotypes [ 77 ]. During periods of darkness, SCY1 levels increase in the chloroplast which augments the import of nuclear-encoded proteins [ 78 ].…”

Section: Discussionmentioning

confidence: 99%

‘Candidatus Phytoplasma mali’ SAP11-Like protein modulates expression of genes involved in energy production, photosynthesis, and defense in Nicotiana occidentalis leaves

Mittelberger,

Moser,

Hause

et al. 2024

BMC Plant Biol

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Background ‘Candidatus Phytoplasma mali’, the causal agent of apple proliferation disease, exerts influence on its host plant through various effector proteins, including SAP11CaPm which interacts with different TEOSINTE BRANCHED1/ CYCLOIDEA/ PROLIFERATING CELL FACTOR 1 and 2 (TCP) transcription factors. This study examines the transcriptional response of the plant upon early expression of SAP11CaPm. For that purpose, leaves of Nicotiana occidentalis H.-M. Wheeler were Agrobacterium-infiltrated to induce transient expression of SAP11CaPm and changes in the transcriptome were recorded until 5 days post infiltration. Results The RNA-seq analysis revealed that presence of SAP11CaPm in leaves leads to downregulation of genes involved in defense response and related to photosynthetic processes, while expression of genes involved in energy production was enhanced. Conclusions The results indicate that early SAP11CaPm expression might be important for the colonization of the host plant since phytoplasmas lack many metabolic genes and are thus dependent on metabolites from their host plant.

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Comparative transcriptomics enables the identification of functional orthologous genes involved in early leaf growth

Vercruysse

Bel

Osuna-Cruz

et al. 2019

Plant Biotechnology Journal

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SummaryLeaf growth is a complex trait for which many similarities exist in different plant species, suggesting functional conservation of the underlying pathways. However, a global view of orthologous genes involved in leaf growth showing conserved expression in dicots and monocots is currently missing. Here, we present a genome‐wide comparative transcriptome analysis between Arabidopsis and maize, identifying conserved biological processes and gene functions active during leaf growth. Despite the orthology complexity between these distantly related plants, 926 orthologous gene groups including 2829 Arabidopsis and 2974 maize genes with similar expression during leaf growth were found, indicating conservation of the underlying molecular networks. We found 65% of these genes to be involved in one‐to‐one orthology, whereas only 28.7% of the groups with divergent expression had one‐to‐one orthology. Within the pool of genes with conserved expression, 19 transcription factor families were identified, demonstrating expression conservation of regulators active during leaf growth. Additionally, 25 Arabidopsis and 25 maize putative targets of the TCP transcription factors with conserved expression were determined based on the presence of enriched transcription factor binding sites. Based on large‐scale phenotypic data, we observed that genes with conserved expression have a higher probability to be involved in leaf growth and that leaf‐related phenotypes are more frequently present for genes having orthologues between dicots and monocots than clade‐specific genes. This study shows the power of integrating transcriptomic with orthology data to identify or select candidates for functional studies during leaf development in flowering plants.

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Loss-of-function mutation in SCY1 triggers chloroplast-to-nucleus retrograde signaling in Arabidopsis thaliana

Cited by 3 publications

References 40 publications

'Candidatus Phytoplasma mali' SAP11-Like protein modulates expression of genes involved in metabolic pathways, photosynthesis, and defense in Nicotiana occidentalis leaves.

'Candidatus Phytoplasma mali' SAP11-Like protein modulates expression of genes involved in metabolic pathways, photosynthesis, and defense in Nicotiana occidentalis leaves.

‘Candidatus Phytoplasma mali’ SAP11-Like protein modulates expression of genes involved in energy production, photosynthesis, and defense in Nicotiana occidentalis leaves

Comparative transcriptomics enables the identification of functional orthologous genes involved in early leaf growth

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