Author

Ryoko Hiroyama

RIKEN Center for Sustainable Resource Science

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Plant Biology· 2 Genomics· 1

Signature Assays, Organisms & Methods

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Approach:experimental assay· 3 Organism:plant (other)· 2 Research Focus:cell type annotation· 1 Research Focus:development & morphogenesis· 1 Organism:fungi (other)· 1 Research Focus:gene regulatory network inference· 1 Assay:proteomics· 1 Approach:statistical model· 1

Frequent Co-Authors

Ken ShirasuiD· 3 shared Anuphon LaohavisitiD· 2 shared Arisa ShibataiD· 2 shared Sachiko MasudaiD· 2 shared Akiko M. UenoiD· 1 shared Anne GreifenhageniD· 1 shared Ayako TsushimaiD· 1 shared Hiroki ItoiD· 1 shared

Activity by Year

2020-2026 · peak 1/yr

Co-Author Collaboration Network

10 top collaborators · 26 mutual co-author links

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3 shared papersPlant Biology

Ken ShirasuORCID

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3 papers

Recent·Most cited

A copper-dependent, redox-based hydrogen peroxide perception in plants

Nobuaki Ishihama, Yohta Fukuda, Yumiko Shirano, Kazuhiro J. Fujimoto, Kaori Takizawa, Ryoko Hiroyama, Hiroki Ito, Mayumi Nishimura, Takeshi Yanai, Tsuyoshi Inoue A, Ken Shirasu, Anuphon Laohavisit

This study identifies a copper-dependent redox receptor in plants that perceives hydrogen peroxide through a surface-bound copper ion.

Nature Communications · May 18, 2026Peer-reviewedPlant Biology

Neofunctionalized RGF pathways drive haustorial organogenesis in parasitic plants

Maxwell R. Fishman, Anne Greifenhagen, Takanori Wakatake, Anuphon Laohavisit, Ryoko Hiroyama, Sachiko Masuda, Arisa Shibata, Satoko Yoshida, Ken Shirasu

This study identifies RGF peptides and their receptors as key regulators of haustorium formation in parasitic plants, revealing evolutionary mechanisms behind their neofunctionalization.

Science Advances · Sep 17, 2025Peer-reviewedPlant Biology

Subtelomeric regions and a repeat-rich chromosome harbor multicopy effector gene clusters with variable conservation in multiple plant pathogenic Colletotrichum species

Pamela Gan, Ryoko Hiroyama, Ayako Tsushima, Sachiko Masuda, Arisa Shibata, Akiko M. Ueno, Naoyoshi Kumakura, Mari Narusaka, Trinh Xuan Hoat, Yoshihiro Narusaka, Yoshitaka Takano, Ken Shirasu

The paper identifies effector gene clusters in subtelomeric regions and repeat-rich chromosomes across multiple Colletotrichum species, showing variable conservation and gene transfer between genomic compartments.

bioRxiv · Apr 28, 2020 · PreprintGenomics