Molecular Mechanisms of Gravity Perception in Higher Plants

• NAKAMURA Moritaka

  Graduate School of Biological Sciences, Nara Institute of Science and Technology

• TASAKA Masao

  Graduate School of Biological Sciences, Nara Institute of Science and Technology

• MORITA T. Miyo

  Graduate School of Biological Sciences, Nara Institute of Science and Technology

Bibliographic Information

Other Title

• 高等植物における重力感受の分子機構
• コウトウ ショクブツ ニ オケル ジュウリョク カンジュ ノ ブンシ キコウ

Abstract

Higher plants reorient their growth direction by sensing the organ tilt relative to the direction of gravity (gravitropism). Historically famous “the starch statolith hypothesis” has explained how plants sense their organ tilt, that is, starch accumulating amyloplasts with high density sink like stones along the gravity vector in the cell, and then trigger subsequent signalings. Recent molecular genetic studies suggest that the sedimentation of amyloplasts is not a spontaneous event but is controlled by actin filaments and vacuolar membranes. This review mainly focuses on the mechanisms of gravity perception involving the amyloplasts movement and following signaling events during gravitropism.<br>

Journal

• Seibutsu Butsuri

  Seibutsu Butsuri 49 (3), 116-121, 2009

  The Biophysical Society of Japan General Incorporated Association

Keywords

• gravitropism
• gravity perceptive cell
• amyloplasts
• vacuolar membrane
• actin microfilament
• <i>sgr</i> (<i>shoot gravitropism</i>)

Details

• CRID: 1390282681511510144
• NII Article ID: 10025975571
• NII Book ID: AN00129693
• DOI: 10.2142/biophys.49.116
• ISSN: 13474219
• ISSN: 05824052
• NDL BIB ID: 10325791
• Web Site: http://id.ndl.go.jp/bib/10325791
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10325791
• Web Site: http://www.jstage.jst.go.jp/article/biophys/49/3/49_3_116/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed