Molecular mechanisms regulating the shape of plant cell nuclei

DOI Web Site 30 References Open Access
  • Sakamoto Yuki
    Department of Biological Sciences, Graduate School of Science, Osaka University

Bibliographic Information

Other Title
  • 植物細胞の核のカタチを制御する分子機構

Description

<p>Most animal cells harbor spherical and oval nuclei, whereas the nuclei in terrestrial plants do not only show spherical and oval shapes but also show various morphologies such as spindle-shaped and rod-shaped. The morphology of animal nuclei is regulated by lamin proteins, which form the nuclear lamina. In contrast, lamin orthologs are not conserved in plants; therefore, nuclear lamina proteins that regulate nuclear morphology in plants have not been identified. In my research, I detected CROWDED NUCLEI (CRWN) proteins in crude nuclear lamina fraction prepared from Arabidopsis thaliana. Phenotype analysis of crwn disruptants and the subcellular localization analysis of CRWNs demonstrated that CRWNs are plant-specific nuclear lamina proteins and play essential roles in regulating nuclear morphology. In addition, I found that CRWNs govern the transcriptional control of many environmental stress-responsive genes. Particularly, I revealed that CRWNs alter the position of the CA gene cluster in the nucleus affecting CA gene expression, contributing to tolerance to excess copper.</p>

Journal

  • PLANT MORPHOLOGY

    PLANT MORPHOLOGY 34 (1), 47-52, 2022

    The Japanese Society of Plant Morphology

References(30)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top