Elucidation of chloroplast-mediated calcium signaling in] Arabidopsis mesophyll cells

2012 Fiscal Year Final Research Report

• Project/Area Number: 22770046
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Plant molecular biology/Plant physiology
• Research Institution: Osaka Medical College
• Principal Investigator: HARADA Akiko 大阪医科大学, 医学部, 講師 (80360626)
• Project Period (FY): 2010 – 2012
• Keywords: シロイヌナズナ / 光合成 / 葉緑体 / カルシウムシグナル / 赤色光

Research Abstract

We focused on a role of calcium signal in the chloroplast-mediated signaling pathway. We revealed that red light increased cytosolic Ca2+ through operation of photosynthesis in Arabidopsis leaves.

Research Products

• [Journal Article] Role of RPT2 in leaf positioning and flattening and a possible inhibition of phot2 signaling by phot1. (2013)
  • Author(s): Akiko Harada, Atsushi Takemiya, Shin-ichiro Inoue, Tatsuya Sakai, Ken-ichiro Shimazaki
  • Journal Title: Plant and Cell Physiology Volume: Vol. 54、 Pages: 36-47
  • URL: doi:10.1093/pcp/pcs094
  • Peer Reviewed
• [Journal Article] Disruption of ROOT PHOTOTROPISM2 gene does not affect phototropin-mediated stomatal opening. (2013)
  • Author(s): ToshifumiTsutsumi,AtsushiTakemiya, Akiko Harada, Ken-ichiro Shimazaki
  • Journal Title: Plant Science Volume: Vol.6 Pages: 201-202 93-97
  • DOI: DOI: 10.1016/j.plantsci.2012.11.012
  • Peer Reviewed
• [Journal Article] Arabidopsis molybdopterin biosynthesis protein Cnx5 collaborates with the ubiquitin-like protein Urm11 in the thio-modification of tRNA (2012)
  • Author(s): Yumi Nakai, Akiko Harada, Yasuyuki Hashiguchi, Masato Nakai, Hideyuki Hayashi
  • Journal Title: Journal of Biological Chemistry Volume: Vol. 287 Pages: 30874-30884
  • DOI: DOI: 10.1074/jbc.M112.350090
  • Peer Reviewed
• [Journal Article] The WAVY GROWTH 3 E3 ligase family controls the gravitropic response in Arabidopsis roots. (2012)
  • Author(s): Tatsuya Sakai, Susumu Mochizuki, Ken Haga, Yukiko Uehara, Akane Suzuki, Akiko Harada, Takuji Wada, Sumie Ishiguro and Kiyotaka Okada
  • Journal Title: The Plant Journal Volume: Vol. 70 Pages: 303-314
  • DOI: DOI: 10.1111/j.1365-313X.2011.04870.x
  • Peer Reviewed
• [Journal Article] Changes in Ca2+ metabolismin Arabidopsis guard cells in response to blue light. (2010)
  • Author(s): Akiko Harada (2010)
  • Journal Title: Plant Signaling and Behavior Volume: Vol. 5 Pages: 397-400
  • URL: http://www.landesbioscience.com/jou rnals/psb/article/10794/
• [Presentation] RPT2 は葉の定位と平 滑化に関与している (2013)
  • Author(s): 原田明子、武宮淳史、井上晋一郎、酒井 達也、島崎研一郎
  • Organizer: 第54回 日本植物 生理学会年会
  • Place of Presentation: 岡山
  • Year and Date: 20130300
• [Presentation] AtCnx5, Arabidopsis sulfurtransferase protein involved in molybdopterin biosynthesis, is also required to the thio-modification of tRNAs. (2013)
  • Author(s): Yumi Nakai, Akiko Harada, Yasuyuki Hashiguchi, Masato Nakai
  • Organizer: 第54回 日本植物生理学会年会・
  • Place of Presentation: 岡山
  • Year and Date: 20130300
• [Presentation] Urm1 と Uba4 は細胞内含 硫小分子への硫黄運搬と Urmylation に 関わる UBL-UBA システムである (2012)
  • Author(s): 中井由実, 原田明子, 橋口康之, 中井 正人, 林 秀行
  • Organizer: 第85回日本生化学会大会
  • Place of Presentation: 福岡
  • Year and Date: 20121200
• [Presentation] 光応答とカルシウムシグナ ル (2012)
  • Author(s): 原田明子
  • Organizer: 第11回 植物生体膜談シンポジウム植物細胞におけるカルシウムシグナ リング
  • Place of Presentation: 姫路
  • Year and Date: 2012-09-15
• [Presentation] シロイヌナズナおよび酵母 においてサイトゾルの tRNA 硫黄修飾に 関与する、ユビキチン様(UBI)タンパ ク質とユビキチン活性化酵素様(UBA) タンパク質の比較解析 (2011)
  • Author(s): 中井由実、原田明子、橋口康之、中井正 人、林秀行
  • Organizer: 第84回生化学 会大会・
  • Place of Presentation: 京都
  • Year and Date: 20110900
• [Presentation] シロイヌナズナ孔辺細胞青色光情報 伝達における RPT2 の機能解析 (2011)
  • Author(s): 堤俊文、武宮淳史、原田明子、島崎研一 郎
  • Organizer: 第52回 日本植物生理学会年会
  • Place of Presentation: 仙台
  • Year and Date: 20110300
• [Presentation] 孔辺細胞青色光情報伝達における RPT2 の機能解析 (2010)
  • Author(s): 堤俊文、武宮淳史、原田明子、島崎研一 郎
  • Organizer: 第55回三学会合同大 会植物学会 九州・沖縄支部会
  • Place of Presentation: 福岡
  • Year and Date: 20100500