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  1. Artikel: HUA ENHANCER1

    Wei, Shuai-Jie / Chai, Sen / Zhu, Rui-Min / Duan, Cun-Ying / Zhang, Yan / Li, Sha

    Frontiers in plant science

    2020  Band 11, Seite(n) 397

    Abstract: Ovules are female reproductive organs of angiosperms, containing sporophytic integuments and gametophytic embryo sacs. After fertilization, embryo sacs develop into embryos and endosperm whereas integuments into seed coat. Ovule development is regulated ... ...

    Abstract Ovules are female reproductive organs of angiosperms, containing sporophytic integuments and gametophytic embryo sacs. After fertilization, embryo sacs develop into embryos and endosperm whereas integuments into seed coat. Ovule development is regulated by transcription factors (TF) whose expression is often controlled by microRNAs. Mutations of Arabidopsis DICER-LIKE 1 (DCL1), a microRNA processing protein, caused defective ovule development and reduced female fertility. However, it was not clear whether other microRNA processing proteins participate in this process and how defective ovule development influenced female fertility. We report that mutations of
    Sprache Englisch
    Erscheinungsdatum 2020-04-15
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2711035-7
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2020.00397
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: Importin β4 Mediates Nuclear Import of GRF-Interacting Factors to Control Ovule Development in Arabidopsis.

    Liu, Hai-Hong / Xiong, Feng / Duan, Cun-Ying / Wu, Ya-Nan / Zhang, Yan / Li, Sha

    Plant physiology

    2019  Band 179, Heft 3, Seite(n) 1080–1092

    Abstract: Ovule development is critical for seed development and plant reproduction. Multiple transcription factors (TFs) have been reported to mediate ovule development. However, it is not clear which intracellular components regulate these TFs during ovule ... ...

    Abstract Ovule development is critical for seed development and plant reproduction. Multiple transcription factors (TFs) have been reported to mediate ovule development. However, it is not clear which intracellular components regulate these TFs during ovule development. After their synthesis, TFs are transported into the nucleus a process regulated by karyopherins commonly known as importin alpha and β. Around half of Arabidopsis (
    Mesh-Begriff(e) Active Transport, Cell Nucleus ; Arabidopsis/genetics ; Arabidopsis/growth & development ; Arabidopsis/metabolism ; Arabidopsis Proteins/genetics ; Arabidopsis Proteins/metabolism ; Arabidopsis Proteins/physiology ; Cell Nucleus/metabolism ; Cytokinins/metabolism ; Cytoplasm/metabolism ; Indoleacetic Acids/metabolism ; Ovule/genetics ; Ovule/growth & development ; Ovule/metabolism ; Trans-Activators/metabolism
    Chemische Substanzen Arabidopsis Proteins ; Cytokinins ; GIF1 protein, Arabidopsis ; Indoleacetic Acids ; Trans-Activators
    Sprache Englisch
    Erscheinungsdatum 2019-01-18
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 208914-2
    ISSN 1532-2548 ; 0032-0889
    ISSN (online) 1532-2548
    ISSN 0032-0889
    DOI 10.1104/pp.18.01135
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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    Verfügbar in ZB MED Bonn

    Z 1193: Hefte anzeigen

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  3. Artikel ; Online: Arabidopsis

    Xiong, Feng / Duan, Cun-Ying / Liu, Hai-Hong / Wu, Ju-Hua / Zhang, Zhong-Hui / Li, Sha / Zhang, Yan

    The Plant cell

    2020  Band 32, Heft 4, Seite(n) 1270–1284

    Abstract: Male and female gametophytes are generated from micro- or megaspore mother cells through consecutive meiotic and mitotic cell divisions. Defects in these divisions often result in gametophytic lethality. Gametophytic lethality was also reported when ... ...

    Abstract Male and female gametophytes are generated from micro- or megaspore mother cells through consecutive meiotic and mitotic cell divisions. Defects in these divisions often result in gametophytic lethality. Gametophytic lethality was also reported when genes encoding ribosome-related proteins were mutated. Although numerous ribosomal proteins (RPs) have been identified in plants based on homology with their yeast and metazoan counterparts, how RPs are regulated, e.g., through dynamic subcellular targeting, is unknown. We report here that an Arabidopsis (
    Mesh-Begriff(e) Arabidopsis/genetics ; Arabidopsis/growth & development ; Arabidopsis/metabolism ; Arabidopsis/ultrastructure ; Arabidopsis Proteins/metabolism ; Cell Cycle Checkpoints ; Cell Nucleus/metabolism ; Cell Nucleus/ultrastructure ; Down-Regulation ; Gametogenesis, Plant ; Gene Expression Regulation, Plant ; Karyopherins/metabolism ; Loss of Function Mutation/genetics ; Ovule/metabolism ; Ovule/ultrastructure ; Pollen/growth & development ; Pollen/ultrastructure ; Protein Binding ; Protein Biosynthesis ; RNA-Binding Proteins/metabolism ; Ribosomal Proteins/metabolism ; Ribosomes/metabolism ; Seeds/metabolism ; Seeds/ultrastructure
    Chemische Substanzen Arabidopsis Proteins ; HYL1 protein, Arabidopsis ; KETCH1 protein, Arabidopsis ; Karyopherins ; RNA-Binding Proteins ; Ribosomal Proteins
    Sprache Englisch
    Erscheinungsdatum 2020-02-21
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 623171-8
    ISSN 1532-298X ; 1040-4651
    ISSN (online) 1532-298X
    ISSN 1040-4651
    DOI 10.1105/tpc.19.00791
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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    Verfügbar in ZB MED Bonn

    Z 4952: Hefte anzeigen

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  4. Artikel ; Online: Arabidopsis JANUS Regulates Embryonic Pattern Formation through Pol II-Mediated Transcription of WOX2 and PIN7.

    Xiong, Feng / Liu, Hai-Hong / Duan, Cun-Ying / Zhang, Bi-Ke / Wei, Guo / Zhang, Yan / Li, Sha

    iScience

    2019  Band 19, Seite(n) 1179–1188

    Abstract: Embryonic pattern formation relies on positional coordination of cell division and specification. Early axis formation during Arabidopsis embryogenesis requires WUSCHEL RELATED HOMEOBOX (WOX)-mediated transcription activation and PIN-FORMED7 (PIN7)- ... ...

    Abstract Embryonic pattern formation relies on positional coordination of cell division and specification. Early axis formation during Arabidopsis embryogenesis requires WUSCHEL RELATED HOMEOBOX (WOX)-mediated transcription activation and PIN-FORMED7 (PIN7)-mediated auxin asymmetry. How these events are regulated is obscure. We report that Arabidopsis JANUS, a putative subunit of spliceosome, is essential for embryonic pattern formation. Significantly reduced transcription but not mRNA processing of WOX2 and PIN7 in janus suggested its role in transcriptional regulation. JANUS interacts with RNA polymerase II (Pol II) through a region outside of its spliceosome-association domain. We further show that Pol II mediates the transcription of WOX2 and PIN7 in a JANUS-dependent way and is essential for embryonic pattern formation. These findings reveal that JANUS recruits Pol II for the activation of two parallel pathways to ensure proper pattern formation during embryogenesis.
    Sprache Englisch
    Erscheinungsdatum 2019-09-09
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 2589-0042
    ISSN (online) 2589-0042
    DOI 10.1016/j.isci.2019.09.004
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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