シンポジウム / Symposium

11 月 1 日（月）（1 Nov.） 8:30 〜 10:30
A 会場
S1-A1 〜 S1-A4

シンポジウム１ / Symposium 1Major Microbial Transitions: From the origin of life to theorigin of the domains［ コンビーナ / Convenor ］

Shawn E. McGlynn (Tokyo Inst. Technol.), Takuro Nunoura (JAMSTEC), Masaru Nobu (AIST)
What is the history of metabolic innovation in relationship to the tree of life? How were major biologicaltransitions facilitated by these biochemical innovations? In this session, we invite presenters who canhelp address these questions through a variety of techniques including: culturing, field work, theory, andbioinformatics. In addition to welcoming those who have new data to share, we also invite participants
who can share new hypotheses that might be tested by others as well as those who can supplement
microbial inferences using orthogonal data (e.g. geochemical studies).
We ask presenters to share their newest data - including their unpublished results - and we also ask
the audience to come prepared to participate. To facilitate vigorous interactions, our session will begin
with an overview of open questions given by the session organizers. Next we will hear from experts
who are invited or who have submitted contributions. At the end of the session, participants will heara summary talk which aims to give further insight and also criticism to the former talks. Audience
members are asked to participate at all the stages.

8:30-

Session introduction by organizers

S1-A1
8:47-

Relaxed substrate specificity of polymerase through in vitro evolution may provide
a possible scenario for the transition from the RNA world to the DNA world○ Norikazu Ichihashi

Grad. Sch. Arts and Sci, Univ. Tokyo

S1-A2
9:09-

Unique metabolic strategies in Hadean analogues○ Masaru K. Nobu1, Ryosuke Nakai1, Satoshi Tamazawa2, Hiroshi Mori3, Atsushi Toyoda3,Akira Ijiri4, Shino Suzuki4, Ken Kurokawa3, Yoichi Kamagata1, Hideyuki Tamaki1
1

AIST, 2H-RISE, 3NIG, 4JAMSTEC

S1-A3
9:31-

Reconstructing the history of the nitrogen cycle using bioinformatics methods○ Rika E. Anderson1, Eva Stueeken2, Christopher Parsons3, Katherine Mateos4, Caleb Rosen51Carleton College, 2University of St. Andrews, 3Massachusetts Institute of Technology,
University of California, Santa Cruz, 5University of Southern California

4S1-A4
9:53-Asgard archaea cytoskeleton proteins and the implications for the archaea-toeukaryote transition○ Robert C. Robinson1, Caner Akil1,3, Samson Ali1,2, Linh T. Tran1, Jeremie Gaillard4,

Laurent Blanchoin4, Wenfei Li5, Kosuke Fujishima3, Akihiro Narita2

1

Research Institute for Interdisciplinary Science, Okayama University,
Division of Biological Science, Graduate School of Science, Nagoya University,
3
Tokyo Institute of Technology, Earth-Life Science Institute (ELSI), 4University of Grenoble-Alpes,
5
Department of Physics, Nanjing University2

10:15-

Session integration－1－

11 月 1 日（月）（1 Nov.） 15:00 〜 17:05
A 会場
S2-A1 〜 S2-A4

シンポジウム 2 / Symposium 2

The Impact of Interactions［ コンビーナ / Convenor ］

Yoshitomo Kikuchi (AIST), Hideomi Itoh (AIST)The world is full of diverse organisms, and their complex interactions have impacted biodiversity andorganismal evolution. However, we understand only a small fraction of the important interactions amongorganisms. In this symposium, we will introduce recent progress on interactions between microbes
and eukaryotic organisms, as well as the diversity and functions of these interactions, to illustrate howorganismal interactions have impacted evolution. This symposium hosts four international speakers, andwill cover a wide range of interactions between animals, plants, fungi, protists, archaea and bacteria,
from their molecular bases to their ecological impacts.
The first speaker, Dr. Haoyang Shen (Univ. Tokyo), focuses on interactions between fungi andmycophagous mites in agricultural fields. Surprisingly, mycophagous mites feed on N2O-producing fungi,reducing N2O emissions from agricultural soils. Second, Dr. Yuya Sato (AIST) will discuss a recently
discovered host-symbiont reciprocal insecticide detoxification relay, by which insect hosts obtainmicrobially conferred insecticide resistance. The third speaker, Dr. Filip Husnik (OIST), will present acurrent knowledge about bacterial and archaeal symbioses in protists. The fourth speaker, Dr. Peter
Mergaert (CNRS), will present how a classic yet novel model system, legume-Rhizobium symbiosis, canbe stabilized by antimicrobial peptides.
New concepts presented by these four front-runners will open new avenues of organismal interaction
studies.

15:00-

Opening remarks

S2-A1
15:05-

Defending against fungal threats from agricultural soils via intensified
belowground fungal grazing○ Haoyang Shen , Yutaka Shiratori , Masayuki Maeda , Tadashi Nagamine , Keishi Senoo○ 1Grad. Sch. Agric., Univ. Tokyo, 2 Niigata Agric. Res. Inst., 3 ROM, 4 CRIIM, Univ. Tokyo
1S2-A2
15:35-

2

2

3

Insecticide detoxification through mutual cooperation between host and symbiont○ Yuya Sato

AIST, EMRI

S2-A3
16:05-

Bacterial and archaeal symbioses with protists: Similarities and differences withanimal symbioses○ Filip Husnik

OIST

S2-A4
16:35-1,4

The BacA and YejABEF peptide uptake transporters of Sinorhizobium meliloti
mediate interspecies interactions between bacteria and between bacteria andplants○ Peter Mergaert1, Dmitrii Y. Travin1,2, Quentin Nicoud1, Konstantin Severinov2
1

I2BC, Univ. Paris-Saclay, CEA, CNRS, 2Center of Life Sci., Skoltech－2－11 月 1 日（月）（1 Nov.） 15:00 〜 17:50
B 会場
S3-B1 〜 S3-B7

シンポジウム 3 / Symposium 3
微生物生態学を社会実装する！

［ コンビーナ / Convenor ］
木村 浩之 ( 静岡大学 ), 中村 孝道 ( 熊谷組 )飽くなき研究者の探求心と解析技術の目覚ましい進化に起因し，微生物生態学はこの 10 年で大きく発展してきた。その発展過程のなかで環境微生物の多様性や代謝機能の解明が加速化されてきた。地球環境の物質循環や物質生産は，微生物の多様な代謝機能を礎として機能している。
近年，国連サミットにおいて 17 の目標を有する SDGs（持続可能な開発目標）が採択された。微生物生態学は，
SDGs の 2. 飢餓をゼロに，3. すべての人に健康と福祉を，6. 安全な水とトイレを世界中に，7. エネルギーをみんなにそしてクリーンに，14. 海の豊かさを守ろう，15. 陸の豊かさを守ろうなど，多くの目標において解決策を導き出す学問となる可能性を秘めている。
また，温暖化対策として脱炭素化が世界的潮流となっており，カーボンニュートラル（CN）やカーボンリサイクル（CR）という言葉が定着しつつある。CN を達成するには，化石資源から再生可能エネルギーへの代替を始めとする精力的な CO2 排出量削減に加えてカーボンネガティブとなる技術の組み合わせが必須である。2021 年 6 月に経済産業省が示した「2050 年カーボンニュートラルに伴うグリーン成長戦略」には，2050 年までに CR 産業を創出し技術開発からの社会実装を目指すことが，2019 年に示された「カーボンリサイクル技術ロードマップ」には，CO2 の有効利用方法として人工光合成による化学品生産や藻類バイオマスエネルギー生産が記載されている。つまり，CN 達成にはホワイトバイオテクノロジーやバイオエネルギーが必要であり，まさに今，微生物の代謝機能を利用したイノベーションが求められている。
本セッションでは，微生物生態学を基盤とし，社会的課題の解決を目指した先進的な研究・開発について紹介する。さらに，環境微生物についての知見や有用微生物を活用した技術の社会実装について議論したい。

15:00-

趣旨説明

S3-B1
15:05-

遺伝子組み換えホモ酢酸菌を用いた合成ガス発酵による化成品製造○中島田 豊広島大・院統合生命

S3-B2
15:30-

微生物培養における攪拌の重要性 - 攪拌について本気で考えたことありますか…○酒井 祐介 1, 植田 芳昭 2（株）熊谷組・技術研究所 , 2 摂南大学・理工学部

1S3-B3
15:55-

石油の増進回収を目的とした地下環境微生物の利用とその社会実装について○菅井 裕一
九州大・院工S3-B4
16:30-

微生物メタネーションの実用化に向けた検討○川野 誠 1, 木村 浩之 2
1S3-B5
16:55-

横河電機 ( 株 ), 2 静岡大・理・地球

微生物電気化学を活用したバイオガス生産の高効率化○加藤 創一郎
産総研・生物プロセス

S3-B6
17:20-

微細藻類ユーグレナ由来バイオジェット燃料生産の可能性○鈴木 健吾 1,2
1

17:45-

株式会社ユーグレナ , 2 理化学研究所

微細藻類生産制御技術研究チーム

Wrap up－3－

11 月 2 日（火）（2 Nov.） 10:00 〜 13:15
A 会場
S4-A1 〜 S4-A12

シンポジウム 4 / Symposium 4

Multidisciplinary English session：
Microbial ecology, Fundamentals and Applications［ コンビーナ / Convenor ］

Hiroyuki Kashima (JAMSTEC), Yukihiro Kinjo (OIST),JSME Committee for the Promotion of Diversity and Career Development
JSME Committee for the Promotion of Diversity and Career Development is pleased to have the second
Multidisciplinary English session at 34th JSME annual meeting. This session aims to encourage scientificdiscussion in English in JSME meetings, and to provide a new forum for a diverse community associatedwith microbial ecology, including those who did not participate in the JSME activities (especially nonJapanese-speaking people). We will invite several keynote speakers and accept a wide range of oralpresentations from students and young scientists. The excellent presentation will be awarded by theCommittee.
Microbes that are ubiquitous in natural environments and in artificial systems have shaped thebiosphere on the Earth, and their activities also play significant roles in grand challenges such as
human health, food production, waste management, energy and environmental conservation, andclimate change. We seek session contributions across all aspects of microbial ecology which covers
such a diverse microbial life with a range of spatial and temporal scopes. By discussing wide research
topics, we would like to exchange ideas about fundamental understanding of microbes and theirapplications. We would like to have fun with exciting discussions as well as to have opportunity tofoster communication with people all over the microbial ecology community.

10:00-

Introduction

S4-A1
10:05-

Gut microbial communities in eusocial insects○ Ryo Miyazaki

Bioproduction Research Institute, AIST★

S4-A2
10:28-

Metabarcoding observations on species-characteristic microbiomes of deep-sea
benthic foraminifera○ Iines Salonen1, Panagiota-Myrsini Chronopoulou1, Hidetaka Nomaki3, Dewi Langlet4,Masashi Tsuchiya3, Karoliina Koho2
1

Japan Agency of Marine-Earth Science and Technology (JAMSTEC), 2University of Helsinki,Japan Agency of Marine-Earth Science and Technology (JAMSTEC),
4
Okinawa Institute of Science and Technology (OIST)
3

S4-A3
10:42-

The functional evolution of termite gut microbiota○Thomas Bourguignon1, Jigyasa Arora1, Yukihiro Kinjo 1, Jan Sobotnik2, Ales Bucek1,Petr Stiblik2, Yves Roisin3, Lucia Zifcakova1, Yung Chul Park4, Ki Yoon Kim4, David SillamDusses5,6, Vincent Herve7, Nathan Lo8, Gaku Tokuda9, Andreas Brune7
1

Okinawa Institute of Science and Technology, 2Czech University of Life Sciences,Universite Libre de Bruxelles, 4Kangwon National University,
5Sorbonne Universites, iEES-Paris, U 242, Bondy, 6Universite Paris 13 - Sorbonne Paris Cite,
7
Max Planck Institute for Terrestrial Microbiology, 8University of Sydney, 9University of the Ryukyus
3－4－

S4-A4
11:05-

Microbial community structures and methanogenic functions in the wetland
environments○ Wipoo Prasitwuttisak1, Yuki Hoshiko2, Toshinari Maeda2, Akira Haraguchi1,Katsunori Yanagawa1
1

Faculty of Environmental Engineering, The University of Kitakyushu,
Graduate School of Life Sciences and Systems Engineering, Kyushu Institute of Technology

2

S4-A5
11:19-

Revisiting the evolution and ecology of photosynthesis with the discovery of"Candidatus Chlorohelix allophototropha", a phototrophic Chloroflexota memberthat uses a Type I reaction center○ Jackson M. Tsuji1,2, Nicolette A. Shaw2, Sakiko Nagashima3,4, Jason J. Venkiteswaran2,5,Sherry L. Schiff2, Manabu Fukui1, Satoshi Hanada3,6, Marcus Tank3,7, Josh D. Neufeld2

1Inst. of Low. Temp. Sci., Hokkaido Univ., Sapporo, Japan, 2Univ. of Waterloo, Waterloo, Canada,
Tokyo Metropolitan Univ., Tokyo, Japan, 4Kanagawa Univ., Kanagawa, Japan,
5Wilfrid Laurier Univ., Waterloo, Canada,
6Bioproduction Res. Inst., National Inst. of Adv. Industrial Sci. and Tech. (AIST), Ibaraki, Japan,
7Leibniz Inst. DSMZ-German Collection of Microorg. and Cell Cultures GmbH, Braunschweig,
Germany
3★

S4-A6
11:33-Development of Genetic Tools for Promising Halomonas Using A Novel Isolate○ Ayaka Tsuji1, Yasuko Takei2, Taku Nishimura3, Yoshinao Azuma1,21

Grad. Sch. of B.O.S.T., Kindai Univ., 2Fac. of B.O.S.T., Kindai Univ., 3Energy Tech. Lab., Osaka Gas Co. Ltd.

★

S4-A7
11:47-

Nitrate reductase is a key enzyme for N2O production in DNRA process○ Zhenxing Xu1, Yoko Masuda1, Hideomi Itoh2, Shohei Hattori3, Sakae Toyoda3,Naohiro Yoshida3,4, Keishi Senoo1,51

Grad. Sch. of Agri., Univ. Tokyo., 2Bioproduction Research Institute, AIST, Hokkaido,Tokyo Tech., 4NICT, 5CRIIM, Univ. Tokyo

3★

S4-A812:01-

Nitrogen and oxygen isotope effects associated with anaerobic ammonium
oxidation (anammox)○ Kanae Kobayashi1,2, Keitaro Fukushima3, Yuji Onishi3, Kazuya Nishina4, Akiko Makabe1,Mamoru Oshiki2, Keisuke Koba3, Satoshi Okabe2
1

X-star, JAMSTEC, 2Grad. Sch. of Eng., Hokkaido Univ., 3CER, Kyoto Univ., 4Earth System Division, NIES

S4-A9
12:15-Isolation and characterization of microbes which are sensitive to extremely low
concentration of hydrogen peroxide○ Motoyuki Watanabe1,2, Kensuke Igarashi2, Souichiro Kato1,2, Yoichi Kamagata1,2,Wataru Kitagawa1,21

Grad. Sch. of Agri., Hokkaido Univ., 2AISTS4-A10
12:29-

Biotransformation potential of antimony-reducing microbial consortium obtained
from stibnite mine tailing soil
○ Daisuke Yamashita1, Satoshi Mitsunobu2, Natsuko Hamamura3
1

Grad Sch Syst Life Sci, Kyushu Univ, 2Grad Sch Agric, Ehime Univ, 3Dep Biol, Fac Sci, Kyushu Univ

S4-A11
12:43-

Co-metabolism of Desulfosporosinus with Dehalococcoides achieved fulldechlorination in a bio electrochemical system○Lingyu Meng, Naoko Yoshida

Grad. Sch. Eng., Nagoya Inst. Technol.

－5－★

S4-A12 Long-term bioelectrochemical treatment of livestock wastewater in pilot-scale
12:57- using electrotrophic bacteria○ Anna Prokhorova , Mami Kainuma , Rie Hiyane , Masaki Kazeoka , Keisuke Ninomiya ,12

1

1

4

3

Naoto Suzuki , Igor Goryanin
1Okinawa Institute of Science and Technology, 2Okinawa Livestock Research Center,
University of Edinburgh, 4Okinawa Environment Science Center

3－6－2