◆S01 Understanding of field plants and development of innovative techniques toward these plant regulation

Date: 9:30-12:30, March 13 (Wednesday), 2019

Venue: Room A

Organizers: Nobutoshi Yamaguchi (NAIST), Yoko Mizuta (Nagoya Univ.), Shigeo Sugano (Ritsumeikan Univ.)

Field plants coexist with other organisms under the influence of fluctuating environmental conditions. However, knowledge on plant biology has been accumulated based on experiments that utilized lab-grown plants. Therefore, little remains known about how field plants grow. To elucidate actual plant behaviors under the influence of fluctuating conditions in the field, plant biologists aim at 1) understanding molecular mechanisms to adapt to fluctuating conditions, 2) creating fluctuating conditions in a lab setting, and 3) establishing fundamental techniques applicable to field research. These attempts allow plant biologists to design robust plants at a molecular level. In this symposium, JST PRESTO researchers in the "Control of Field-Grown Plants Phenomena" program will present not only their most recent results, but also future directions.

Molecular genetic analysis for epigenetic memory and acquired traits

Nobutoshi Yamaguchi (NAIST, JST PRESTO)

Evolution and diversification of sexual systems in plants: insights from “persimmon”

Takashi Akagi (Grad. Sch. Agric., Kyoto Univ., JST-PRESTO)

Gene Expression Dynamics Of The Obligate Filamentous Pathogen Blumeria Spp. And Their Host Plant Under Field Environments

Kentaro Yoshida (Grad. Sch. Agric. Sci., Kobe Univ., JST, Presto)

Elucidating biological networks of plant-microbiota superorganism

Yasunori Ichihashi (RIKEN BioResource Research Center)

Precise control of auxin signaling by synthetic approach

Shinya Hagihara (CSRS, RIKEN, ITbM, Nagoya Univ.)

Development of the core technology that allows quantitative evaluation of solute movement in a living plant using radioisotopes

Keitaro Tanoi (Grad. Sch. Agri. Life Sci., UTokyo, JST PRESTO)

Genetic modification of plant reproductive cells using pollen tube as a vector and the study of plant reproduction

Yoko Mizuta (JST PRESTO, ITbM, Nagoya Univ.)

◆S02 The final phase of the photosynthetic electron transport

Date: 9:30-12:30, March 13 (Wednesday), 2019

Venue: Room B

Organizers: Shinji Masuda (Tokyo Inst. Tech.), Kentaro Ifuku (Kyoto Univ.)

Recent development of new methodologies for spectroscopic and structural studies, as well as emergence of genome editing technology, have promoted photosynthesis research again to elucidate the mechanism of the light-driven electron transfer in chloroplasts. New experimental results reported one after another in recent years urge us to update and reconstruct the existing models. In this symposium, we will share and discuss the latest results to improve our current understanding on the photosynthetic electron transfer, and try to find out the future direction of the related research.

Photosynthesis Organisms Favor O2 to Suppress ROS Production~Who Understands O2 Worlds?~

Chikahiro Miyake (Fac Agri, Kobe University)

Roles of far-red light in regulation of photosynthesis in fluctuating light in land plants

Masaru Kono (Sch. Sci. Univ. Tokyo)

Structural Basis for the electron transfer mechanism between photosystem I and ferredoxin

Hisako Kubota-Kawai (Faculty of Sci., Yamagata Univ.)

Crosstalk between NADP+ supply system and electron transfer in photosynthesis

Shin-nosuke Hashida (Environ. Sci. Res. Lab., CRIEPI)

Regulation of photosynthetic electron transport via proton motive force

Toshiharu Shikanai (Kyoto University)

The role of cyclic electron flow in C4 photosynthesis

Takako Ogawa (Grad. Sch. Sci. & Tec.,Univ. Kwansei Gakuin)

◆S03 Understanding the plant survival strategies from the perspective of stem cells

Date: 9:30-12:10, March 13 (Wednesday), 2019

Venue: Room N

Organizers: Masaaki Umeda (NAIST), Hitoshi Sakakibara (Nagoya Univ.)

In plants, stem cells possess pluripotency and somatic cells can easily undergo reprogramming. This feature enables continuous growth of plants for extended periods of time. On the other hand, in animals, pluripotent stem cells disappear soon after early embryogenesis, and in the adult body, tissue stem cells capable of differentiating into specific cell types constitute the major stem cell population. Therefore, stem cell systems should be different between plants and animals; however, the underlying mechanisms still remain elusive. In this symposium, principal investigators of the research project on innovative area ‘pluripotent plant stem cells’ will introduce recent progress in the study of plant stem cells. We aim to focus on how plant stem cells are generated, proliferating and maintained over long periods of time in vivo. This symposium is sponsored by Grant-in-Aid for Scientific Research on Innovative Areas ‘Principles of pluripotent stem cells underlying plant vitality’.

Towards understanding mechanisms controlling indeterminacy of plant stem cells

Junko Kyozuka (Tohoku Univ. Life Sciences)

Mechanisms for the timing of the stem cell production in plants

Shinjiro Yamaguchi1,2 (1Kyoto Univ., Inst. Chem. Res., 2Tohoku Univ., Grad. Sch. Life Sci.)

Role of cytokinins in maintenance and modulation of shoot meristem activity

Hitoshi Sakakibara, (Grad. Sch. Bioagr. Sci., Nagoya Univ.)

Gene regulatory networks in root nodule symbiosis

Makoto Hayashi (RIKEN CSRS)

Genome maintenance strategies in stem cells

Masaaki Umeda (Grad. Sch. Sci. Tech., NAIST)

Direct roles of MUTE in termination of asymmetric cell division and orchestration of stomata differentiation

Soon-Ki Han (ITbM, Nagoya University)

Cell division in moss stem cells

Gohta Goshima (Nagoya University)

◆S04 Strategies of mechanical optimization in plants

Date: 14:00-17:00, March 13 (Wednesday), 2019

Venue: Room A

Organizers: Haruko Ueda (Konan Univ.), Shinichiro Sawa (Kumamoto Univ.)

Seismic base-isolation, vibration control and smart structure-engineering are technologies that re-enforce architectural structures against dynamic external stresses such as earthquakes and strong winds, reduce damages and maintain building habitability. On the other hand, plants can be regarded as natural sustainable structures that have acquired the ability to adapt to constantly changing environments. In this symposium, we will introduce research topics concerning the strategies of mechanical optimization in plants, which are expected to contribute to plant's structural sustainability. We will also introduce the latest technology for assessing the changing forces on plants and discuss the significance of plants from a structural mechanics viewpoint.

Strategy of Mechanical Optimization During Plant Development by Regulation of Secondary Cell Wall Formation

Taku Demura (Division of Biological Science, Nara Institute of Science and Technology)

Explore mechanical optimization strategies of jigsaw puzzle-shaped pavement cells

Takumi Higaki (IROAST, Kumamoto Univ.)

Organ bending and its restoration system for adjusting plant posture

Haruko Ueda (Fac. Sci. Engin., Konan Univ.)

Plant mechanosensory transduction as revealed by highly-sensitive biosensors

Masatsugu Toyota (Dept Biochem and Mol Biol, Saitama Univ)

Single cell detection and manipulation by atomic force microscopy and laser ablation

Yoichiroh Hosokawa (Division of Materials Science, Nara Institute of Science and Technology)

Plantphysiology and Structural Engineering

Kenichi Kawaguchi (IIS, the University of Tokyo)

◆S05 Metabolisms as Survival Strategy in Plants

Date: 14:00-17:00, March 13 (Wednesday), 2019

Venue: Room B

Organizers: Mami Yamazaki (Chiba Univ.), Nobukazu Shitan (Kobe Pharm. Univ.), Hikaru Seki (Osaka Univ.)

Plants have been adapted and survived on the globe with diversified dynamic metabolisms, chemical reactions. In this symposium, the ingenious systems recently revealed in plant metabolisms, such as molecular catalytic mechanism, regulation, evolution and biological interaction will be overviewed and discussed from multi-aspects.

Polyphenolic polymorphism found in neo-functionalization related to production of UV light protectants

Takayuki Tohge (NAIST)

A heat-inducible lipase remodels chloroplastic glycerolipids in Arabidopsis leaves

Yasuhiro Higashi (CSRS, RIKEN)

Importance of chemical information on insect-plant network

Masaaki Kotera (Dep. Eng., Univ. Tokyo)

Investigating biosynthesis and regulation of plant triterpenoids: towards the elucidation of their biological functions

Hikaru Seki (Grad. Sch. Eng., Osaka Univ)

Transporters of secondary metabolites —Identification, characterization, and possible application to synthetic biology—

Nobukazu Shitan (Kobe Pharm. Univ.)

Neo-functionalization of enzymes commits to biosynthesis of bioactive alkaloids

Mami Yamazaki (Grad. Sch. Pharm. Sci., Chiba Univ.)

◆S06 Plant adaptation strategies via ABA-mediated signaling in change of environmental conditions.

Date: 14:00-16:50, March 13 (Wednesday), 2019

Venue: Room F

Organizers: Toshinori Kinoshita (Nagoya Univ.), Noriyuki Nishimura (ISC, NARO), Fuminori Takahashi (RIKEN CSRS)

The abscisic acid receptors PYR/PYL/RCAR were identified in 2009, after that, 10 years have passed. However, detailed mechanisms such as various physiological responses mediated by abscisic acid (ABA) and signal crosstalk with other hormonal responses are still unknown. In this symposium, we will share latest knowledge and issue about the regulation of ABA signals and responses, and consider the adaptation strategy of plants against environmental change via ABA signaling. We also would like to discuss the future developments of applied strategies that utilize these knowledge for agricultural crops.

New Insights into Drought-Linked Stomatal Movements and Abscisic Acid Signal Transduction

Julian I. Schroeder (Division of Biological Sciences, University of California, San Diego, USA)

Chemical genetics for elucidating stomatal movement

Yusuke Aihara (Grad.Sch.Sci., Nagoya Univ.)

A regulatory system of seed dormancy and germination regulated by abscisic acid signaling

Noriyuki Nishimura (ISC, NARO)

Phosphoproteomics of Highly ABA-Induced1 (HAI1) reveals new factors in growth and RNA splicing regulation during drought stress.

Paul Verslues (Academia Sinica, Institute of Plant and Microbial Biology)

Conserved and diversified signaling mechanisms revealed by molecular studies of ABA responses in bryophytes

Daisuke Takezawa (Saitama University)

Long-distance peptide signaling in drought stress responses

Fuminori Takahashi (RIKEN CSRS)

◆S07 Find out the mechanism supporting C4 photosynthesis

Date: 9:00-11:40, March 14 (Thursday), 2019

Venue: Room B

Organizers: Yuri Munekage (Kwansei Gakuin Univ.), Tsuyoshi Furumoto (Ryukoku Univ.)

C4photosynthesis is known to occur in multiple lineages in angiosperm, and appears to be a so-called convergent evolutionary phenomena. In C4photosynthesis, CO2is fixed as a C4compound, and is transferred and then decarboxylated in a compartmentalized space where Ribulose 1,5-bisphosphate carboxylase/oxygenase (RuBisCO) is localized. This C4cycle increases the local CO2level, thereby suppressing RuBisCO oxygenase activity, enabling highly efficient photosynthesis under hot and drought conditions. Most C4plants carry two-celled C4photosynthesis where mesophyll and bundle sheath cells are coordinate their functions. Conversely, there are also plants known to carry out single-celled photosynthesis. In this symposium, speakers present multifaceted approaches to study the mechanism supporting C4photosynthesis. Understanding C4photosynthesis from multiple viewpoints will provide ideas for engineering C4photosynthesis in crops.

Evolutionary Assembly of C4 Leaf Structure

Tammy Sage (University of Toronto Department of Ecology & Evolutionary Biology)

Organelle positioning in C4 photosynthetic cells

Mitsutaka Taniguchi (Grad. Sch. Bioagricul. Sci., Nagoya Univ.)

Electron transport and energy production in chloroplasts of NADP-ME type C4 plants

Yuri Munekage (Sch Sci Tech, Kwansei Gakuin Univ.)

Optimum integration of C4 cycle into Calvin-Benson cycle

Tsuyoshi Furumoto (Ryukoku University, Faculty of Agriculture)

The molecular evolution of C4 photosynthesis

Julian Hibberd (Downing Street, Cambridge, CB2 3EA)

Mechanisms regulating differentiation and positioning of the two chloroplast types in single-cell C4 species

Sascha Offermann (Leibniz University Hannover, Institute of Botany)

◆S08 How to inherit and rewrite cellular memory in plants

Date: 13:30-16:00, March 14 (Thursday), 2019

Venue: Room A

Organizers: Momoko Ikeuchi (RIKEN), Yosuke Tamada (NIBB, Sokendai)

During plant development, cells often inherit their pre-specified identities over mitotic cycles. On the other hand, plant cells have an intrinsic plasticity and they may change their fates dramatically upon developmental or environmental stimuli. Recent advent of new technologies to reveal single-cell or single-cell type gene expression profile and epigenomic profile allows us to address a fundamental question: how plant cells inherit and re-write cellular memory. In this international symposium, we will discuss molecular mechanisms for the maintenance of cellular status and the reprogramming of cellular identity. This symposium is sponsored by Scientific Research on Innovative Areas, Integrative system of autonomous environmental signal recognition and memorization for plant plasticity.

Mechanisms underlying cell fate specification and plasticity

Roger Deal (Emory University, Department of Biology)

Reconfiguring the A. thaliana epigenome by bypassing epigenetic resetting in the germ line

Claude Becker (Gregor Mendel Institute of Molecular Plant Biology, Austrian Academy of Sciences)

Balancing act in the control of plant cell reprogramming

Momoko Ikeuchi (RIKEN CSRS)

de novo Meristem Formation at Single Cell Resolution

Idan Efroni (The Hebrew University)

Role of the histone variant in the regulation of cellular memory

Yosuke Tamada (Div. Evol. Biol., Natl. Inst. Basic Biol., Sch. Life Sci., SOKENDAI)

◆S09 Plant mineral transporters: from function to structure and modelling

Date: 13:30-16:00, March 14 (Thursday), 2019

Venue: Room B

Organizers: Jian Feng Ma (Okayama Univ.)

Plants require mineral elements for their growth and development. During last decades, a number of transporters involved in uptake, translocation, distribution and redistribution of mineral elements have been identified. At this symposium, the most recent progress on mineral transporters will be presented by leading scientists in this field including Dr. Tsay from Taiwan. The topic covers function, regulation, structure and modeling of mineral transporters. Future prospects will also be discussed at this symposium. This symposium is supported by JSPS grant (Specially Promoted Research) for “Integrated analysis of mineral transport system in crops”.

Node-based transporters for preferential distribution of mineral elements

Naoki Yamaji (IPSR, Okayama Univ.)

IRON MAN to the rescue: how plants take up iron

Louis Grillet (IPMB, Academia Sinica, Taiwan)

Regulation of nitrogen acquisition under low availability and beyond

Takatoshi Kiba (Grad. Sch. Bioagr., Nagoya Univ.)

Sensing external and internal nitrate by transceptors

Yi-Fang Tsay (Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan)

Structure of a silicon transporter in plant

Michi Suga (Research Insititute for Interdisciplinary Science, Okayama Univ.)

Integrated micro-scale and macro-scale modeling of silicon transportation system in rice

Gen Sakurai (Institute for Agro-Environmental Sciences, NARO)

◆The 15th Database Workshop

Date: 9:00–12:00,March 14 (Thursday), 2019

Venue: Room F

Organizers: Kentaro Yano (Meiji Univ.), Shizuka Koshimizu (Meiji Univ.)

Through increasing omics data by using NGS, machine learning methods have been widely applied for researches in plant science. In this workshop, we will introduce the principle of natural language processing, deep neural network to class the images, visualization of the explanations in neural network models, and how to use public cloud. Participants are requested to bring their own PC and make necessary setups in advanced to this workshop. We will announce necessary software shortly. Of course, listening to the lectures only is also welcomed.
Co-sponsored by "Determining principles in the birth of new plant species"

Introduction —The current status of plant omics databases—

Kentaro Yano (Bioinformatics, Meiji Univ.)

Launch the deep learning from a viewpoint of a “wet” researcher: Image diagnosis and its visual explanations

Takashi Akagi (Grad. Sch. Agric., Kyoto Univ., JST-PRESTO)

Plant Annotation Tasks by Deep Learning and Utilization of Public Cloud

Eli Kaminuma (Tokyo Medial and Dental University)

*If you would like to attend the workshop, Please see the details from the URL below.