Regulation mechanisms of orientation of cortical microtubules in plant cells

2009 Fiscal Year Final Research Report

• Project/Area Number: 20770048
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Morphology/Structure
• Research Institution: Osaka City University
• Principal Investigator: SOGA Kouichi Osaka City University, 大学院・理学研究科, 講師 (00336760)
• Project Period (FY): 2008 – 2009
• Keywords: 重力 / 植物ホルモン / 成長方向 / 表層微小管配向 / 微小管結合タンパク質

Research Abstract

The reorientation of cortical microtubules from transverse to longitudinal directions was induced by hypergravity, ethylene or aging. The transcript levels of γ-tubulin complex and katanin genes were increased transiently by both hypergravity and ethylene treatments, whereas a decrease in the transcript levels of MAP65 was induced by hypergravity, ethylene or aging in azuki bean epicotyls. These results suggest that the changes in the transcript levels of γ-tubulin complex, katanin and MAP65 are involved in the reorientation of cortical microtubules.

Research Products

• [Journal Article] The transcript level of katanin gene is increased transiently in response to changes in gravitational conditions in azuki bean epicotyls (2009)
  • Author(s): Soga K, Kotake T, Wakabayashi K, Kamisaka S, Hoson T
  • Journal Title: Biological Sciences in Space 23 Pages: 23-28
  • Peer Reviewed
• [Journal Article] Transient increase in the transcript levels ofγ-tubulin complex genes during reorientation of cortical microtubules by gravity in azuki bean (Vigna angularis) epicotyls (2008)
  • Author(s): Soga K, Kotake T, Wakabayashi K, Kamisaka S, Hoson T
  • Journal Title: Journal of Plant Research 121 Pages: 493-498
  • Peer Reviewed
• [Journal Article] 1-Aminocyclopropane-1- carboxylic acid (ACC)-induced reorientation of cortical microtubules is accompanied by a transient increase in the transcript levels ofγ-tubulin complex and katanin genes in azuki bean epicotyls
  • Author(s): Soga K, Yamaguchi A, Kotake T, Wakabayashi K, Hoson T
  • Journal Title: Journal of Plant Physiology (in press)
  • Peer Reviewed
• [Presentation] エチレンによるアズキ上胚軸の表層微小管の配向変化とγ-チューブリン複合体およびカタニンの発現増加 (2010)
  • Author(s): 曽我康一、山口彩、小竹敬久、若林和幸、保尊隆享
  • Organizer: 第51回日本植物生理学会年会
  • Place of Presentation: 熊本
  • Year and Date: 20100318-20100319
• [Presentation] シロイヌナズナ・カタニン変異体の成長と形態に対する重力の影響 (2008)
  • Author(s): 樋口紗世子、松本翔平、曽我康一、若林和幸、加藤壮英、橋本隆、保尊隆享
  • Organizer: 日本植物学会近畿支部2008年度大会
  • Place of Presentation: 神戸
  • Year and Date: 2008-12-13
• [Presentation] Transient increase in the levels ofγ-tubulin complex in reorientation of cortical microtubules by gravity in azuki bean epicotyls (2008)
  • Author(s): Soga K, Kotake T, Wakabayashi K, Kamisaka S, Hoson T
  • Organizer: 37th Committee on Space Research Scientific Assembly
  • Place of Presentation: Montreal
  • Year and Date: 2008-07-15
• [Presentation] Effects of gravity on growth phenotypes in MAPs mutants of Arabidopsis (2008)
  • Author(s): Higuchi S, Kumasaki S, Matsumoto S, Soga K, Wakabayashi K, Hashimoto T, Hoson T
  • Organizer: 37th Committee on Space Research Scientific Assembly
  • Place of Presentation: Montreal
  • Year and Date: 2008-07-15