International College of Arts and Sciences,
Graduate School of Nanobioscience,
Yokohama City University


Laboratory of
Plant Developmental Biology

Japanese


Research Interests:

   Generally, in higher plants, zygotic embryos show desiccation tolerance and dormancy that is induced by abscisic acid (ABA; a kind of phytohormone) at the later phase of seed development. Seed dormancy is a very important system for its survival by allowing it to avoid bad environmental conditions.
   We have been studying the mechanisms of the acquisition of desiccation tolerance and ABA-signal transduction in embryos by physiological and molecular biological methods. For the analysis, carrot somatic embryos are used as plant materials, because a large quantity of embryos that are synchronized to the same stage can be collected easily, and somatic embryos are able to respond to exogenous ABA as seen in zygotic embryos. Our results suggest that some ABA-inducible genes and C-ABI3, the transcriptional factor, are involved in seed-specific desiccation tolerance induced by ABA.
   In addition, studies on the mechanism of seed dehydration and somatic embryogenesis are under way.

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Members:

SHIOTA, Hajime; Associate Professor, Yokohama City University

 

OZAWA, Shoko; Graduate Student, Yokohama City University

SENUMA, Masahiro; Graduate Student, Yokohama City University

MATSUZAWA, Shingo; Undergraduate Student, Yokohama City University

KAWANO,Junpei; Undergraduate Student, Yokohama City University

TAKEDA, Sahoko; Undergraduate Student, Yokohama City University

FUKUMOTO, Kazuki; Undergraduate Student, Yokohama City University

KIKUCHI, Tamae; Undergraduate Student, Yokohama City University

INO, Natsumi; Undergraduate Student, Yokohama City University

KOBAYASHI, Ai; Undergraduate Student, Yokohama City University

 

Professional Organizations:

The Botanical Society of Japan, The Japanese Society of Plant Physiologist, Japanese Society for Plant Cell and Molecular Biology, The Japanese Society for Chemical Regulation of Plants

 

Selected Publications:

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(updated on October 3, 2016)