Involvement of AtMinE1 in Plastid Morphogenesis in Various Tissues of Arabidopsis thaliana

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概要

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• While it has been established that binary fission of leaf chloroplasts requires the prokaryote-derived, division site determinant protein MinE, it remains to be clarified whether chloroplast division in non-leaf tissues and the division of non-colored plastids also involve the MinE protein. In an attempt to address this issue, plastids of cotyledons, floral organs, and roots were examined in the <I>Arabidopsis thaliana</I> mutant of the <I>MinE</I> (<I>AtMinE1</I>) gene, which was modified to express the plastid-targeted cyan fluorescent protein constitutively, and were quantitatively compared with those in the wild type. In the cotyledons, floral organs, and root columella, the plastid size in the <I>atminE1</I> mutant was significantly larger than in the wild type, while the plastid number per cell in <I>atminE1</I> appeared to be inversely smaller than that in the wild type. In addition, formation of the stroma-containing plastid protrusions (stromules) in the cotyledon epidermis, petal tip, and root cells was more active in <I>atminE1</I> than in the wild type.

• 公益社団法人 日本農芸化学会の論文
• 2009-12-23

著者

• ITOH Ryuuichi

  Department of Biological Sciences, Graduate School of Science, University of Tokyo

• Fujiwara Makoto

  Riken

• Itoh Ryuuichi

  Department Of Chemistry Biology And Marine Science Faculty Of Science University Of Ryukyus

• Kojo Kei

  Department of Chemistry, Biology and Marine Science, Faculty of Science, University of Ryukyus

関連論文

• Ultrastructures of the Golgi Body and Cell Surface in Cyanidioschyzon merolae
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• Improved Procedure for Immunogold Electron Microscopy: Rapid-Freeze Substitution with Absolute Acetone
• Detecting Cytoplasmic rRNA in the Primitive Red Alga Cyanidioschyzon merolae
• DNA Contents of Cell Nuclei in Two Cyanidiophyceae : Cyanidioschyzon merolae and Cyanidium caldarium Forma A
• Two minD Genes in Physcomitrella patens Are Functionally Redundant
• Live Imaging of Chloroplast FtsZ1 Filaments, Rings, Spirals, and Motile Dot Structures in the AtMinE1 Mutant and Overexpressor of Arabidopsis thaliana
• The leaf morphologies of the subtropical rheophyte Solenogyne mikadoi and its temperate relative S. bellioides (Asteraceae) are affected differently by plant hormones and their biosynthesis inhibitors
• MITOCHONDRIA-AND PLASTID-DIVIDING RINGS:BASIS FOR THE MECHANISM OF CYTOPLASMIC INHERITANCE OF EUKARYOTE
• Further Evaluation of the Localization and Functionality of Hemagglutinin Epitope- and Fluorescent Protein-Tagged AtMinD1 in Arabidopsis thaliana
• A SUPERMAN-like Gene is Exclusively Expressed in Female Flowers of the Dioecious Plant Silene latifolia
• The Assembly of the FtsZ Ring at the Mid-Chloroplast Division Site Depends on a Balance Between the Activities of AtMinE1 and ARC11/AtMinD1
• MinE REGULATES CHLOROPLAST DIVISION SITE PLACEMENT
• An Effective Method for Detection and Analysis of DNA Damage Induced by Heavy-Ion Beams
• Involvement of AtMinE1 in Plastid Morphogenesis in Various Tissues of Arabidopsis thaliana

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