ICTPPO2023 program
Oral session
Day 1, 19 September (Tuesday)
14:00 On site registration
16:00
16:00 Opening ceremony Tatsuru Masuda
Pleanary lectures
Chair: Yuichi Fujita
16:15 Plenary lecture 1

David Kehoe

Indiana
University, USA

Control of photosynthetic antennae
biogenesis by light color in marine
phytoplankton

Chair: Bernhard Kräutler
17:15 Plenary lecture 2

HitoshiTamiakiRitsumeikan
Chlorophylls and their synthetic analogs
University, Japan

18:30 Welcome party

Day 2, 20 September (Wednesday)
Session 1: Metabolism and catabolism of tetrapryrroles
Chair: Ryoichi Tanaka
8:30

Selected speaker 1 Bernhard(25 min)
Grimm

HumboldtMultiple regulatory effects on the synthesis
Universität zuof 5-aminolevulinic acid by auxiliary andBerlin, Germany regulatory factors

8:55

Selected speaker 2 Roman(25 min)
Sobotka

Czech Academy
Regulation and the regulatory role ofof Sciences,photosynthetic ferrochelatase
Czech

9:20

Selected speaker 3 Jennifer
University of(25 min)
Bridwell-Rabb Michigan, USA

A metalloprotein catalyzed transformationin chlorophyll metabolism

Chair: Haruki Yamamoto
9:45

Selected speaker 4Hisashi Ito(25 min)

Functional and structural analysis of MgHokkaido
dechelatase involved in chlorophyll
University, Japandegradation

10:10

Selection fromposter 1 (15 min)

University ofAssembly of a foreign photosynthetic
Liverpool, Unitedantenna
KingdomDowrung
Namoon10:25 Coffee break
Session 2: Chloroplast biogenesis and retrograde signaling
Chair: Sho Fujii
Jagiellonian
Selected speaker 1 Michal
10:40
University,(25 min)GabrukPoland
11:05

Selected speaker 2
Hsou-min Li(25 min)Academia
Sinica, Taiwan

The formation and the disassembly of
prolamellar body are driven by LPOR
Protein import into plastids: better signals
and a better bridge

11:30

Selected speaker 3 Matthew J(25 min)
Terry

University ofSouthampton,UKThe role of tetrapyrroles in retrogradesignalling

11:55 Lunch (Mugibatake)
Chair: Koichi Kobayashi
Chanhong
Kim

ChineseGUN1-dependent biogenic thermal stress
Academy ofresponses
Sciences, China

13:45

Selection fromposter 1 (15 min)

14:00

Selected speaker 4 Tatsuru(25 min)
MasudaThe University of Functional analysis of heme-transporters inTokyo, Japan
plant cells

14:15

Selection fromposter 2 (15 min)Huazhong
Roles of leghemoglobins and heme
Agricultural
catabolism in symbiotic nitrogen fixation inUniversity, China Legume nodules

Deqiang
DuanmuSession 3: Chemistry and theory of tetrapyrroles
Chair: Hitoshi Tamiaki
University of
Selected speaker 1 Bernhard
14:30
Innsbruck,(25 min)
Kräutler
Austria
14:55

Selected speaker 2 Yuichiro(25 min)Kashiyama

Novel chemistry of chlorophyll breakdown
in vascular plants

Fukui Universityof Technology,
Japan

Biochemical elucidation of CPEaccumulating chlorophyll catabolism
conserved among diverse eukaryotes

University ofSydney,
Australia

Red-shifted chlorophylls and theirbiosynthetic mechanisms

15:20 Coffee break
Chair: Yoshitaka Saga
15:35

Selected speaker 3
Min Chen(25 min)

15:50

The Hebrew
Insight into the photochemistry of
Selected speaker 4
Igor Schapiro University of
cyanobacteriochromes by QM/MM(25 min)Jerusalem, Israel simulations

16:15

Selection fromposter 1 (15 min)Yutaka Ukaji

Total synthesis of regioselectively 15NKanazawa
University, Japan labeled tetrapyrrole chromophores

Chair: Yuichi Fujita
16:30 Poster presentation flash talk (2 min)17:10 Poster presentation
19:00 Dinner (Take by yourself)

Day 3, 21 September (Thursday)
Mini-session: Bilin biosynthesis
Chair: Nicole Frankenberg-Dinkel
Selection fromposter 1 (15 min)Federica
Frascogna

RPTU
Kaiserslautern,
Germany

Selection from
8:45
poster 2 (15 min)

Masakazu
Sugishima

KurumeUniversity
Structural analysis of plant
School ofphytochromobilin synthase
Medicine, Japan

8:30

On the evolution of the plant phytochrome
chromophore biosynthesis

Cytoplasmic heme decomposition by heme
The University of oxygenase 1 produced by transcription
Chen Yingxi
Tokyo, Japan
start sites regulation is critical for
chloroplast biogenesis
Session 4: Bilin-based optogenetics and imaging
Chair: Rei Narikawa
Selection from9:00
poster 3 (15 min)National
Genetically encoded phycocyanobilin
Selected speaker 1Institutes of
9:15
Kazuhiro Aoki
synthesis, SynPCB, and its application to(25 min)Naturaloptogenetics and live-cell imaging
Sciences, Japan
Selection from
9:40
poster 1 (15 min)

9:55

Ting-So Liu

Identification of a far-red light-inducible
National Taiwan
promoter that exhibits light intensity
University,dependency and reversibility in aTaiwan
Cyanobacterium

Selected speaker 2
The University ofMoritoshi Sato
Optical manipulation of the genome(25 min)Tokyo, Japan

10:20 Coffee break
Chair: Moritoshi Sato
Heinrich-HeineUniversität,
GermanyCyanobacteriochrome-based optogenetic
tools for gene expression and subcellular
protein localization

ShenzhenInstitute ofAdvanced
Selected speaker 3
10:50
Minghai Chen Technology,(25 min)ChineseAcademy ofSciences, China

Near-infrared phytochrome based
fluorescence complementation for
imaging of protein-protein interactions inliving cells and in vivo

10:35

11:15

Selection fromposter 2 (15 min)

Kun Tang

Selected speaker 4 Robert E.
(25 min)Campbell

Near-Infrared fluorescent calcium ion
The University ofbiosensors based on engineered
Tokyo, Japanbiliverdin-binding proteins

11:40 Lunch box
14:00 Excursion
18:30 Banquet

Day 4, 22 September (Friday)
Session 5: Bili-based antenna proteins
Chair: Yuu Hirose
8:30

Selected speaker 1
PekingJindong Zhao
(25 min)
University

8:55

Selection fromposter 1 (20 min)9:15

Selected speaker 2
Noam Adir(25 min)

Ming-Yang
Ho

Distribution of PBS-absorbed light energy
between PSII and PSI in Cyanobacteria

A relict paddle-shaped phycobilisome
National Taiwan
structure discovered from a thylakoid-freeUniversity
Cyanobacterium
Israel Institute of Extreme heterogeneity in the A. marina
Technologyphycobilisome

Chair: Rei Narikawa
TechnischeNicole
Selected speaker 3Universität
9:40
Frankenberg(25 min)KaiserslauternDinkel
LandauToyohashi
Selected speaker 4
10:05
Yuu Hirose
University of(20 min)Technology
10:25 Coffee break
Session 6: Bilin-based photoreceptors
Chair: Rei Narikawa

What can we learn from viralphotosynthesis?
Absorption tuning mechanism of thechromatic acclimation sensor in
Cyanobacteria

Photoconversion mechanism of a
Sagagreen/red cyano-bacteriochrome based onUniversity, Japan
its molecular structure
University of
The light-dependent induction of cell
Selected speaker 2
Electropolarity and the switching of moving
11:05
Gen Enomoto(25 min)Communications direction in the rod-shaped, Japancyanobacterium Thermosynechococcus
10:40

Selected speaker 1 Tomotsumi(25 min)Fujisawa

11:30

University of
Selected speaker 3
Light signaling and allostery mechanisms
Xiaojing Yang Illinois Chicago,(25 min)of bacteriophytochromes
USA

11:55

Selected speaker 4 Nathan C.
(25 min)RockwellUniversity ofCalifornia atDavis, USA

A conserved cyanobacteriochrome inearlybranching cyanobacteria

12:20 Lunch (Palo)
Chair: Yuu Hirose
Tokyo
Molecular evolution of the novel DXCIP
Metropolitan
cyanobacteriochrome to sense blue lightUniversity, Japan by using inserted Cys residue

14:00

Selection fromposter 1 (15 min)HirokiHoshino

14:15

Selection fromposter 2 (15 min)The University of Photocobilins utilise B12 and bilin
Laura Jeffreys Manchester,
cofactors for photochemistry spanning theUnited Kingdom full visible spectrum

Session 7: Artificial photosynthesis
Chair: Min Chen
Selected speaker 1Koji Oohora(25 min)

Hemoprotein assembly containing
Osakaporphyrinoid photosensitizers toward anUniversity, Japan
artificial light-harvesting system

14:55

Selected speaker 2Dror Noy(25 min)

Migal GalileeResearchInstitute & TelHai Academic
College, Israel

15:20

Selection fromposter 1 (15 min)

Modification of B800 bacteriochlorophyll aKindai
in peripheral light-harvesting proteins ofUniversity, Japan
purple photosynthetic bacteria

14:30

15:35 Closing ceremony
16:00 Departure

Yoshitaka
Saga

Tatsuru Masuda

Computational design of water-soluble
chlorophyll-bindingPoster Session
Session 1: Metabolism and catabolism of tetrapryrroles
Japan Agency for
Novel enzymatic activities of geranylgeranyl reductase
Yuusuke Marine-Earth Science from Halorhodospira halochloris , resulting in theP1-1
Tsukatani and Technology
production of bacteriochlorophyll with an unusual(JAMSTEC), Japanphytadienyl tailP1-2

Haruki
Nagoya University,
Yamamoto Japan

Light and oxygen requirements for chlorophyll dbiosynthesis on marine cyanobacterium Acaryochloris
marina

P1-3Kazuki
TerauchiRistumeikan
University, Japan

Genes encoding dark-operative protochlorophyllide
oxidoreductase in the nonphotosynthetic plastid genome ofa novel coralinhabiting apicomplexan Corallicola aquarius

P1-4Ji Won
Kim

Nagoya University,
Japan

Analysis of etiolation process of a cyanobacterial mutant
incapable of light-independent chlorophyll biosynthesis: anovel role of chlorophyll a for the viability of cyanobacteria

Engineering chlorophyll, bacteriochlorophyll andcarotenoid biosynthetic pathways in Escherichia coli
A novel secretion system of photosynthetic pigments via
KentaroNagoya University,
P1-6
extracellular vesicles in the cyanobacterium Leptolyngbya
UsuiJapan
boryana
Hokkaido University, In vitro analysis of the chelating and dechelating reactions
P1-7
Soma Satoof Stay Green Related (SGR) Mg dechelatase
JapanStructure and function of enzymes in the synthesis of biline
Fjoralba
Ruhr-Universität
P1-8pigments
Zeqiri
Bochum, Germany
Session 2: Chloroplast biogenesis and retrograde signaling
Analysis for the molecular mechanism of chloroplast
RyoKyoto University,
P2-1
development by brassinosteroid signaling
Tachibana Japan
High efficiency transit peptides for protein transport into
ChiungAcademia Sinica,P2-2
leucoplasts
Chih Chu Taiwan
Galactolipid biosynthesis involves in GUN1-mediatedHirosaki University,
P2-3
Sho Fujii
regulation of photosynthesis-associated genes
Japan
Genetic screening to identify cytosolic sorting factors for
Chia-Yun Academia Sinica,
P2-4chloroplasts and mitochondrion proteins import
Chang
TaiwanRoles of plastid phospholipid PG and sulfolipid SQDG in
Akiko
Osaka Metropolitan
P2-5
etioplast development and de-etiolation of Arabidopsis
Yoshihara University, Japanthaliana
Session 3: Chemistry and theory of tetrapyrroles
Synthesis and physical properties of chlorophyll–quinone
Saki
Ritsumeikan
P3-1
conjugates
Kichishima University, Japan
Session 4: Bilin-based optogenetics and imaging
University of Toronto, Toward a biliverdin-binding cyanobacteriochrome-based
P4-1
Giang Le
optogenetic system
CanadaIntroduction of reversible cysteine ligation ability to theTakahisa Tokyo Metropolitan
P4-2biliverdin-binding cyanobacteriochrome photoreceptor
SuzukiUniversity, Japan
Session 5: Bili-based antenna proteins
Adaptation mechanism of Acaryochloris marina MBICKeita
The University of
P5-1
11017 to orange light environments
MiyakeTokyo, Japan
Acaryochloris marina NIES 2412 absorbs and utilizes lightMai
Tokyo Metropolitan
P5-2
of wavelength longer than 730 nm
Watanabe University, Japan
Acclimation of the rod-shaped phycobilisomes to iron andMutsumi
Tokyo University of
P5-3light color in Cyanobacteria
Kubushiro Technology, JapanP1-5

Guangyu
E. ChenShanghai Jiao Tong
University, China

Session 6: Bilin-based photoreceptorsP6-1

Megan J. The Hebrew University Computational investigation of the photoisomerization
Mackintosh of Jerusalem, Israel
process in phytochromes

P6-2

YuyaFujita

Toyohashi Universityof Technology, JapanMana
Fukazawa
ShizueYoshihara
Yasuhiro
Jyojima

Tokyo Metropolitan
University, Japan
Osaka Metropolitan
University, Japan
Saga University,
Japan

P6-3
P6-4
P6-5

Reconstitution of cyanobacteriochrome RcaE with isotopelabeledbilin chromophore for elucidating its
protochromicity
Elucidation of orange light absorbing property of thedualchrome1 phytochrome region
Activation of PhyC with short-wavelength light is importantfor growth under low red:far-red light conditions
Cryogenic Raman study of photoconversion from green to
red absorbing state of the cyanobacteriochrome RcaE