Dr. Jiang Zi-Ru

Profile

Jiang Zi-Ru holds a PhD in Agriculture from Nagoya University, Japan, and was formerly a postdoctoral researcher at Nagoya University. His research covers forest ecology, forest protection, insect–microbe symbiotic systems and the mechanics of biological structural materials.

His research experience includes field surveys, isolation and identification of insects and fungi, molecular identification, inoculation experiments, mechanical testing of biomaterials, data analysis and research software development. He currently works on biomaterial testing, research software and data processing.

Research interests

• Forest insect ecology
• Insect–microbe symbiosis
• Ecological control and biological control of forest pests
• Forest ecosystem health assessment
• Understory economy and ecosystem services
• Biomaterial mechanics and hardness measurement of biological structures

Career

Selected publications

1. JIANG Zi-Ru (2026). Evolutionary Stability of High Virulence in Vector-Borne Forest Pathogens: Evidence from Pine Wilt Disease and Management Thresholds. bioRxiv, 2026-01. doi: 10.64898/2026.01.04.697537
2. JIANG Zi-Ru. (2025). Why Ambrosia Beetles Keep Only One Fungus: Competitive Asymmetry, Bottleneck Drift, and Eco-Evolutionary Fixation. bioRxiv, 2025-12. doi: 10.64898/2025.12.18.694882
3. JIANG Zi-Ru (2025). How to Become Invisible to Mosquitoes: A Computational Study of Host Signal Collapse. bioRxiv, 2025-12. doi: 10.64898/2025.12.09.693171
4. JIANG Zi-Ru, Omori Hideya. (2025). Mechanical properties of beetle elytra using nanoindentation. Journal of Material Testing Research Association of Japan, 70(1), 10–15.
5. JIANG Zi-Ru, TANOUE Momo, MASUYA Hayato, KAMEYAMA Norikazu, KURODA Keiko, KAJIMURA Hisashi. (2023). Fusarium kuroshium is the primary fungal symbiont of an ambrosia beetle, Euwallacea fornicatus, and can kill mango tree in Japan. Scientific Reports, 13(1), 21634. doi: 10.1038/s41598-023-48809-8
6. LI Yonghua, XIN Zhiming, YAO Bin, DUAN Ruibing, DONG Xue, BAO Yanfeng, LI Xinle, MA Yuan, HUANG Yaru, LUO Fengmin, LI Xing, WEI Xu, JIANG Zi-Ru, LOZADA-GOBILARD Sissi, ZHU Jinlei. (2023). Density affects plant size in the Gobi Desert. Science of The Total Environment, 169401. doi: 10.1016/j.scitotenv.2023.169401
7. JIANG Zi-Ru, MORITA Takeshige, JIKUMARU Shota, KURODA Keiko, MASUYA Hayato, KAJIMURA Hisashi. (2022). The role of mycangial fungi associated with ambrosia beetles in fig wilt disease. Microorganisms, 10, 1912.
8. JIANG Zi-Ru, MASUYA Hayato, KAJIMURA Hisashi. (2022). Fungal flora in adult females of the rearing population of ambrosia beetle Euwallacea interjectus. Diversity, 14(7), 535.
9. JIANG Zi-Ru, MASUYA Hayato, KAJIMURA Hisashi. (2021). Novel symbiotic association between Euwallacea ambrosia beetle and Fusarium fungus on fig trees in Japan. Frontiers in Microbiology, 12.
10. LIN Wei, PARK Sangwook, JIANG Zi-Ru, JI Ying-Chao, ERNSTSONS Andris Simon, LI Jun-Jun, LI You, HULCR Jiri. (2021). Native or invasive? The red-haired pine bark beetle Hylurgus ligniperda in East Asia. Forests, 12(7), 950.
11. JIANG Zi-Ru, KAJIMURA Hisashi. (2020). Earwig preying on ambrosia beetle: Evaluating predatory process and prey preference. Journal of Applied Entomology, 144(8), 743–750.
12. JIANG Zi-Ru, KINOSHITA Shunichi, SASAKI Osamu, COGNATO Anthony I., KAJIMURA Hisashi. (2019). Non-destructive observation of the mycangia of Euwallacea interjectus using X-ray computed tomography. Entomological Science, 22, 173–181.
13. 薛小勇, 姜自如. (2014). 乡土构树树种的利用价值与造林技术初探. 现代园艺, 24, 67–68.
14. 薛小勇, 姜自如, 陈刚. (2014). 东海县核桃发展现状及对策. 北京农业, 33, 323–324.
15. 姜自如, 张刚龙, 曹支敏, 周丽. 陕西省杨树溃疡病菌地理种群研究. 西北林学院学报, 27(2), 102–108.
16. 姜自如, 曹支敏, 王培新, 陈祖静. 陕西省杨树水泡型溃疡病地理分布及寄主抗病性调查. 东北林业大学学报, 39(7), 91–98.
17. 陈祖静, 曹支敏, 苟兴庆, 姜自如. 杨树与松杨栅锈菌互作中寄主活性氧及抗性相关酶变化. 林业科学, 46(8), 101–106.

Academic meetings

1. JIANG Zi-Ru, Omori Hideya. (2025). Mechanical properties of beetle elytra using nanoindentation. The 301st Symposium on Materials Testing Technology.
2. JIANG Zi-Ru, TANOUE Momo, MASUYA Hayato, KURODA Keiko, KAJIMURA Hisashi. Effects of Fusarium fungi isolated from an ambrosia beetle, Euwallacea fornicatus, on mango tree saplings. The 133rd Annual JFS Meeting.
3. JIANG Zi-Ru, MASUYA Hayato, KAMEYAMA Norikazu, KURODA Keiko, KAJIMURA Hisashi. Symbiotic fungi of Euwallacea fornicatus infesting mango trees in Okinawa main island. The 132nd Annual JFS Meeting.
4. 三木尚輝, 姜自如, 木下峻一, 佐々木理, 升屋勇人, 梶村恒. トドマツオオキクイムシの菌嚢のX線マイクロCT観察及び共生菌の分離. The 131st Annual JFS Meeting.
5. JIANG Zi-Ru, MORITA Takeshige, JIKUMARU Shota, KURODA Keiko, MASUYA Hayato, KAJIMURA Hisashi. Inoculation of both Fusarium sp. and Ceratocystis ficicola can bring fig saplings to early wilt. The 131st Annual JFS Meeting.
6. JIANG Zi-Ru, MASUYA Hayato, KAJIMURA Hisashi. Comparison of fungal flora in female adults of an ambrosia beetle, Euwallacea interjectus, among wild and rearing populations. AMC2019.
7. JIANG Zi-Ru, MASUYA Hayato, KAJIMURA Hisashi. Fungi isolated from an ambrosia beetle, Euwallacea interjectus, emerging from fig trees in Japan. The 130th Annual JFS Meeting.
8. JIANG Zi-Ru, KAJIMURA Hisashi. Earwig prey on ambrosia beetle: a test for its predatory process and preference. The 78th Annual Meeting of the Entomological Society of Japan.
9. JIANG Zi-Ru, KINOSHITA Shun-ichi, SASAKI Osamu, MASUYA Hayato, KAJIMURA Hisashi. Micro-CT scan of adult female Euwallacea interjectus and its mycangial fungi. The 129th Annual JFS Meeting.