Tetsuo Oikawa
University of Tokyo
9 Papers
10 Citations
Tetsuo Oikawa is an academic researcher from University of Tokyo. The author has contributed to research in topics: Meristem & Gene. The author has an hindex of 9, co-authored 9 publications. Previous affiliations of Tetsuo Oikawa include National Agriculture and Food Research Organization & Nara Institute of Science and Technology.
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Papers
Phytochrome mediates the external light signal to repress FT orthologs in photoperiodic flowering of rice
TL;DR: A model to explain how a short-day plant recognizes the day length in photoperiodic flowering is proposed, which may depend on the coincidence with Pfr phytochromes.
LAX PANICLE2 of rice encodes a novel nuclear protein and regulates the formation of axillary meristems.
Hiroaki Tabuchi,Yu Zhang,Susumu Hattori,Minami Omae,Sae Shimizu-Sato,Tetsuo Oikawa,Qian Qian,Minoru Nishimura,Hidemi Kitano,He Xie,Xiaohua Fang,Hitoshi Yoshida,Junko Kyozuka,Fan Chen,Yutaka Sato +14 more
TL;DR: It is proposed that LAX2 is a novel factor that acts together with LAX1 in rice to regulate the process of AM formation, and it is shown thatLAX PANICLE2 (LAX2) likely acts in the maintenance of the axillary meristem.
Phytochromes confer the photoperiodic control of flowering in rice (a short-day plant).
TL;DR: In this paper, the photoperiodic sensitivity 5 (se5) mutant of rice, a short-day plant, has a very early flowering phenotype and is completely deficient in photopiodic response.
254
Two-Step Regulation of LAX PANICLE1 Protein Accumulation in Axillary Meristem Formation in Rice
Tetsuo Oikawa,Junko Kyozuka +1 more
TL;DR: It is proposed that LAX1 protein accumulates transiently in the initiating AM at P4 stage by a strict regulation of mRNA expression and a subsequent control of protein trafficking, crucial to the establishment of the new AM.
238
The Birth of a Black Rice Gene and Its Local Spread by Introgression
Tetsuo Oikawa,Hiroaki Maeda,Taichi Oguchi,Takuya Yamaguchi,Noriko Tanabe,Kaworu Ebana,Masahiro Yano,Takeshi Ebitani,Takeshi Izawa +8 more
TL;DR: Genome analysis of 21 black rice varieties as well as red- and white-grained landraces demonstrated that black rice arose in tropical japonica and its subsequent spread to the indica subspecies can be attributed to the causal alleles of Kala4.