2023 Fiscal Year Annual Research Report
Integrated analysis of mineral ion dynamics in rice crop exposed to acute herbivory stress
| Project/Area Number |
21H02196
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| Research Institution | Okayama University |
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Principal Investigator |
Ivan Galis 岡山大学, 資源植物科学研究所, 教授 (90360502)
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| Co-Investigator(Kenkyū-buntansha) |
網干 貴子 山形大学, 農学部, 准教授 (20746705)
三谷 奈見季 岡山大学, 資源植物科学研究所, 准教授 (40581020)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | Mineral / Herbivory / Defense |
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| Outline of Annual Research Achievements |
(1) We refined spatio-temporal distribution of Si in rice challenged with chewing herbivory stress and correlated the expression of main transporters Lsi1, Lsi2, Lsi6 and SIET4 with the observed Si accumulation patterns. We found that supplementation of Si is important for the maintenance of sugar and amino acid level balance. However, Si presence did not affect photosynthesis in rice. (2) We identified a major gene involved in the biosynthesis of isopentylamine (Aboshi group). (3) The effect of Zn, Ni, Cu and Cd on rice cells was examined using isolated leaf segments. An increase of metal toxicity and damage on leaf cells caused by rice brown planthopper co-infestation was determined . (4) The main results on role of Si and isopentylamine synthesis were submitted to JCR journals.
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| Research Progress Status |
令和5年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
令和5年度が最終年度であるため、記入しない。
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