Welcome Message

Photosynthesis is one of the most fundamental chemical reactions maintaining our environment on Earth, which utilizes light energy to assimilate atmospheric carbon dioxide into organic compounds. In plants, photosynthesis occurs exclusively in the chloroplast, the organelle derived through endosymbiosis from a relative of present-day cyanobacteria. To understand photosynthesis, we have seen tremendous advancements in deciphering the structural components of photosynthetic reactions in the past decades. An emerging importance, now commonly accepted in the photosynthesis researchers, is the fact that the photosynthetic machineries are highly vulnerable to excess light energy and consequently results in inhibitory status, ultimately leading to cell death. Therefore, photosynthesis requires photoprotection: dynamic mechanisms to dissipate excess energy or to repair damaged components.

Chloroplasts are central in performing photosynthesis and photoprotection as aforementioned, but are not entirely designed for photosynthesis in plants. It is one-type of plastids, in which photosynthetic machineries are accommodated promptly responding to light environment. How plant cell maintains functional chloroplasts is another important aspect in photosynthesis, because chloroplasts proliferate within the cell and consist of proteins either synthesized within the organelle or imported from the cytosol. Homeostasis of chloroplasts, by coordinating intraorganelle signaling, gene expression, and remodeling proteostasis, is another important aspect that control photosynthesis.

Given these broad topics included in photosynthesis research, this symposium aims in providing the common platform to discuss regulation of photosynthesis and chloroplast development at molecular, organellar, cellular and individual levels. We invite more than twenty invited speakers who are the forefront in the area, both overseas and domestic, and will organize poster session from which short talks are selected. We especially recommend researchers at the junior level to participate.

Wataru Sakamoto

Chair, Organizing committee



Organizing Committee

Toshiharu Shikanai Yuichiro Takahashi Hsou-min Li (Advisory member) Micheal Hippler (Advisory member) Stefan Hörtensteiner (Advisory member)


Toshiya Endo (Kyoto Sangyo University)
[Mitochondrial biogenesis: machineries and pathways]




Jian Feng Ma (Okayama University)
[Transport system of mineral elements in plants: from soil to the seeds]


Alice Barkan (University of Oregon)
Ralph Bock (Max Planck Institute of Molecular Plant Physiology)
Roberta Croce (Vrije Universiteit Amsterdam)
Catherine de Vitry (IBPC, CNRS)
Michel Goldschmidt-Clermont (Université de Genève)
Maureen Hanson (Cornell University)
Michael Hippler (University of Münster)
Toru Hisabori (Tokyo Institute of Technology)
Stefan Hörtensteiner (Universität Zürich)
Paul Jarvis (University of Oxford)
Chanhong Kim (Shanghai Center for Plant Stress Biology, CAS)
Genji Kurisu (Osaka University)
Hsou-min Li (Academia Sinica)
Alizée Malnoë (Umeå Plant Science Centre)
Yusuke Matsuda (Kwansei-Gakuin University)
Jun Minagawa (NIBB)
Masato Nakai (Osaka University)
Nathan Nelson (Tel Aviv University)
Wataru Sakamoto (Okayama University)
Jian-Ren Shen (Okayama University)
Toshiharu Shikanai (Kyoto University)
Hiroshi Shimizu (Osaka University)
Yuichiro Takahashi (Okayama University)
Lixin Zhang (Institute of Botany, CAS)
(In alphabetical order)



Date November 7-10, 2018
Venue Kurashiki Kokusai Hotel
Address: 1-1-44, Chuo, Kurashiki, JAPAN
Kurashiki Civic Hall
Address: 17-1, Honmachi, Kurashiki, JAPAN
November 7 (WED) (Kurashiki Kokusai Hotel)
15:30-16:30 Registration
16:30-16:40 Opening remark
Plenary Lectures (Chair: Wataru Sakamoto)
16:40-17:25 Toshiya Endo Mitochondrial biogenesis: Machineries and pathways
17:25-18:10 Jian Feng Ma Transport system of mineral elements in plants: From soil to the seeds
18:40-20:30 Welcome mixer
November 8 (THU) (Kurashiki Civic Hall)
Session1 Photosynthetic Machineries: Structure and Assembly (Chair: Jun Minagawa)
10:00-10:30 Jian-Ren Shen Structural biological studies of photosynthetic membrane-protein complexes
10:30-11:00 Genji Kurisu Structural atlas of the electron transfer complexes of ferredoxin and its partner protein
11:00-11:30 Nathan Nelson Photosynthetic reaction centers – Robustness with increased complexity
11:30-12:00 Yuichiro Takahashi Structure and assembly of photosystem I complex
12:00-14:00 Lunch  (see Lunch map)
Session 2 Mechanisms of Photosynthetic Regulation I (Chair: Michael Hippler)
14:00-14:30 Roberta Croce Photoacclimation in Chlamydomonas reinhardtii
14:30-15:00 Jun Minagawa Algal photoprotection: Mechanism and signal transduction
15:00-15:30 Alizée Malnoë Molecular players of sustained energy dissipation in plants
15:30-16:00 Break
16:00-16:50 5 min presentation (Chair: Yuichiro Takahashi)
Nine speakers selected from posters
Ryo Nagao Cryo-EM structures of diatom PSII-FCPII supercomplexes
Keisuke Saito Proton release and water incorporation in photosystem II
Cynthia Amstutz Relaxation of QH1 (ROQH1) functions in sustained energy dissipation in Arabidopsis
Nellaepalli Sreedhar Biochemical characterization of Photosystem I assembly apparatus in green alga Chlamydomonas reinhardtii
Yoshifumi Ueno Modification of excitation energy-transfer processes of the glaucophyte Cyanophora paradoxa in response to different light qualities
Laura Mosebach The structure of PSI-LHCI complexes in Chlamydomonas reinhardtii and potential implications on photosynthetic electron transport regulation
Tetsuko Nakaniwa Structural analysis of the homodimeric photosynthetic reaction center from Helicobacterium modesticaldum
 Haruhiko Jimbo Role of Cyclin-dependent kinase-like protein in the accumulation of psbA transcripts in Chlamydomonas reinhardtii
 Boon Leong Lim Photosynthesis revisited by fluorescence ATP sensor
16:50-17:35 Poster exhibition (Odd numbers)
17:35-18:20 Poster exhibition (Even numbers)
November 9 (FRI) (Kurashiki Civic Hall)
Session 3 Mechanisms of Photosynthetic Regulation II (Chair: Roberta Croce)
9:10-9:40 Toru Hisabori Redox regulation machineries in photosynthetic organisms
9:40-10:10 Michael Hippler Regulation of photosynthesis via calredoxin: New insights into a calcium-regulated chloroplast thioredoxin
10:10-10:40 Toshiharu Shikanai Regulatory network of photosynthetic electron transport
10:40-11:10 Break
Session 4 Gene Expression and Engineering (Chair: Catherine de Vitry and Yusuke Kato)
11:10-11:40 Maureen Hanson Engineering photosynthesis in C3 plants
11:40-12:10 Michel Goldschmidt-Clermont Regulation and function of thylakoid protein phosphorylation in Arabidopsis and Chlamydomonas
12:10-14:00 Lunch  (see Lunch map)
14:00-14:30 Alice Barkan Regulation of chloroplast translation by light
14:30-15:00 Ralph Bock A systems view of chloroplast biogenesis
15:00-15:30 Hiroshi Shimizu Systems biology and metabolic engineering of photosynthetic organisms
15:30-16:00 Break
16:00-16:45  5 min presentation (Chair: Toshiharu Shikanai)
 Eight speakers selected from posters
Shinichiro Maruyama, Eunsoo Kim Revisiting the origin of photosynthetic eukaryotes and eukaryotic photosynthesis
Yoshinori Tsuji Identification of new molecular components supporting active carbon fixation by marine diatoms
Kevin Hines Chloroplast carbonic anhydrases function in photosynthesis and plant development
Satomi Arisaka Relationship between increased production of PHB and photosynthesis due to overexpression of ntcA in Synechocystis sp. PCC 6803
Sonia Accossato SUMOylation of TOC159 regulates chloroplast biogenesis in early plant development
Sakuya Nakamura Selective chlorophagy – microautophagic removal of membrane-damaged chloroplasts
Norikazu Ohnishi VIPP1, the membrane interity-maintaining protein in chloroplasts, has GTPase activity in vitro
Yuna Uemura role of phosphorylation of chloroplast Ca2+ binding protein CAS in the regulation of stomatal movement
16:45-17:30 Poster exhibition (Even numbers)
17:30-18:15 Poster exhibition (Odd numbers)
18:30-20:30 Dinner   (Kurashiki Ivy Square: Banquet hall Opal)
November 10 (SAT) (Kurashiki Civic Hall)
Session 5 Chloroplast Biogenesis I (Chair: Stefan Hortensteiner)
9:10-9:40 Hsou-min Li Tic236 links the chloroplast outer and inner membrane translocons
9:40-10:10 Masato Nakai Molecular machineries for chloroplast protein import and their evolution.
10:10-10:40 Paul Jarvis Protein Import into Chloroplasts and its Regulation by the Ubiquitin-Proteasome System
10:40-11:10 Break
Session 6 Chloroplast Biogenesis II (Chair: Yuri Munekage)
11:10-11:40 Stefan Hortensteiner Evolutionary aspects of chlorophyll breakdown
11:40-12:10 Yusuke Matsuda Revealing new structure and functions of the aquatic chloroplast bundling the photosystem and the CO2-concentrating mechanism
12:10-14:00 Lunch (see Lunch map)
14:00-14:30 Lixin Zhang The mechanism of chloroplast retrograde signaling (temporary)
Session 7 Chloroplast Homeostasis (Chair: Paul Jarvis)
14:30-15:00 Catherine de Vitry FtsH, a major housekeeping and regulatory protease of the thylakoid membrane
15:00-15:30 Chanhong Kim Oxidative PTM: a step toward deciphering ROS sensor residing in chloroplast
15:30-16:00 Wataru Sakamoto Chloroplast protein degradation and beyond: FtsH and a possible peptide export
16:00-16:30 Break and Free discussion
16:30-16:45 Closing


The deadline for registration and abstract submission:  

Registration is Closed.

The registration fees: 5,000 JPY

Banquet fees (Nov 9): 8,000 JPY (if you attend)


For those who are to register from China, please fill out this form (Click here to download [ISPCB 2018_Registration_Form.doc]) and send it to ispcb2018(AT)okayama-u.ac.jp

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Poster presentation

The poster should be A0 format (119 cm [height] x 84 cm [width]). Poster title and author’s name should be written on the poster.

For 5 min short talk presentation, 16 abstracts will be selected from posters. Each submitted abstract will be reviewed and selected by the organizing committee.


Abstract Guidelines
The maximum word limit for the abstract is 250 words. Please download the abstract template and follow the format carefully. Once you prepared your abstract, submit your abstract to ispcb2018(AT)okayama-u.ac.jp

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Please submit your abstract before 31 August 2018.


Kurashiki Civic Hall
Address: 17-1, Honmachi, Kurashiki, JAPAN

Kurashiki Kokusai Hotel
Address: 1-1-44, Chuo, Kurashiki, JAPAN

Court Hotel Kurashiki
Address: 2-2-26, Chuo, Kurashiki, JAPAN

Information of Kurashiki City

By Air
From Okayama airport
Okayama airport is the closest airport to Kurashiki. It takes about 35 min from the airport to Kurashiki station by a bus. The airport has several international flight connections from Seoul (Inchon), Shanghai (Pudong) and Guam. Since Seoul (Inchon) airport is an airline hub, international flights via Seoul (Inchon) airport are the easiest way to arrive to Okayama airport. After arrival to Okayama airport, you can take a direct bus for Kurashiki (do NOT take the buses for Okayama station).

From Kansai airport
Kansai airport is the largest international airport in West Japan, and it has many international flight connections. The easiest way to reach Kurashiki from Kansai is via Japan Railways (JR)-WEST, taking the following route:

Kansai airport > Shin-Osaka (50 min by Haruka express)
Transit to Shinkansen super express.
Shin-Osaka > Okayama (60 min by Sanyo Shinkansen super express)
Transit to a local JR Sanyo-line.
Okayama > Kurashiki (15 min by JR Sanyo-line)
Kurashiki Civic Hall is 15 min by walk from the station.

By Train from Tokyo
Tokyo > Okayama (3 h 30 min by Sanyo Shinkansen super express)
Transit to a local JR Sanyo-line.
Okayama > Kurashiki (15 min by JR Sanyo-line)
Kurashiki Civic Hall is 15 min by walk from the station.


Watatu Sakamoto

Institute of Plant Science and Resources (IPSR)
Okayama University
Address: 2-20-1 Chuo, Kurashiki, 710-0046, JAPAN

e-mail: sakaATokayama-u.ac.jp

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