دورية أكاديمية
Overexpression of RAN1 in rice and Arabidopsis alters primordial meristem, mitotic progress, and sensitivity to auxin.
العنوان: | Overexpression of RAN1 in rice and Arabidopsis alters primordial meristem, mitotic progress, and sensitivity to auxin. |
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المؤلفون: | Wang X; Research Center for Molecular and Developmental Biology, Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China., Xu Y, Han Y, Bao S, Du J, Yuan M, Xu Z, Chong K |
المصدر: | Plant physiology [Plant Physiol] 2006 Jan; Vol. 140 (1), pp. 91-101. Date of Electronic Publication: 2005 Dec 16. |
نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
اللغة: | English |
بيانات الدورية: | Publisher: American Society of Plant Biologists Country of Publication: United States NLM ID: 0401224 Publication Model: Print-Electronic Cited Medium: Print ISSN: 0032-0889 (Print) Linking ISSN: 00320889 NLM ISO Abbreviation: Plant Physiol Subsets: MEDLINE |
أسماء مطبوعة: | Publication: Original Publication: Lancaster, Pa., American Society of Plant Physiologists. |
مواضيع طبية MeSH: | Arabidopsis/*genetics , Indoleacetic Acids/*pharmacology , Meristem/*metabolism , Oryza/*genetics , Plant Proteins/*metabolism , ran GTP-Binding Protein/*metabolism, Arabidopsis/anatomy & histology ; Arabidopsis/growth & development ; Caulimovirus/genetics ; Flowers/growth & development ; Gene Expression Regulation, Plant ; Meristem/cytology ; Meristem/drug effects ; Mitosis/physiology ; Molecular Sequence Data ; Oryza/anatomy & histology ; Oryza/growth & development ; Plant Roots/cytology ; Plant Roots/growth & development ; Plant Roots/metabolism ; Plant Shoots/cytology ; Plant Shoots/growth & development ; Plants, Genetically Modified/drug effects ; Plants, Genetically Modified/enzymology ; Plants, Genetically Modified/growth & development ; Signal Transduction ; Triticum/enzymology ; Triticum/genetics |
مستخلص: | Ran is an evolutionarily conserved eukaryotic GTPase. We previously identified a cDNA of TaRAN1, a novel Ran GTPase homologous gene in wheat (Triticum aestivum) and demonstrated that TaRAN1 is associated with regulation of genome integrity and cell division in yeast (Saccharomyces cerevisiae) systems. However, much less is known about the function of RAN in plant development. To analyze the possible biological roles of Ran GTPase, we overexpressed TaRAN1 in transgenic Arabidopsis (Arabidopsis thaliana) and rice (Oryza sativa). TaRAN1 overexpression increased the proportion of cells in the G2 phase of the cell cycle, which resulted in an elevated mitotic index and prolonged life cycle. Furthermore, it led to increased primordial tissue, reduced number of lateral roots, and stimulated hypersensitivity to exogenous auxin. The results suggest that Ran protein was involved in the regulation of mitotic progress, either in the shoot apical meristem or the root meristem zone in plants, where auxin signaling is involved. This article determines the function of RAN in plant development mediated by the cell cycle and its novel role in meristem initiation mediated by auxin signaling. |
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سلسلة جزيئية: | GENBANK AF488730 |
المشرفين على المادة: | 0 (Indoleacetic Acids) 0 (Plant Proteins) 6U1S09C61L (indoleacetic acid) EC 3.6.5.2 (ran GTP-Binding Protein) |
تواريخ الأحداث: | Date Created: 20051220 Date Completed: 20060420 Latest Revision: 20240314 |
رمز التحديث: | 20240314 |
مُعرف محوري في PubMed: | PMC1326034 |
DOI: | 10.1104/pp.105.071670 |
PMID: | 16361516 |
قاعدة البيانات: | MEDLINE |
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