2026-05-08 国際農研,農研機構,テクモフ株式会社,東京科学大学
図1 成長時期に伴うシコクビエの根と葉におけるコラカノール類生産量の変化
＜関連情報＞
- https://www.jircas.go.jp/ja/release/2026/press202602
- https://pubs.acs.org/doi/10.1021/acs.orglett.6c00300
キビから発見された2つの生物学的硝化阻害ジテルペノイド、コラカノールAおよびB Discovery of Coracanols A and B, Two Biological Nitrification Inhibition Diterpenoids from Finger Millet
Junnosuke Otaka,Guntur Venkata Subbarao,Shigeki Matsumiya,Naoki Wada,Yuki Wada,Masaki Kawano,Keisuke Kutsuwada,Hiroshi Ono,and Tadashi Yoshihashi
Organic Letters Published: March 9, 2026
DOI:https://doi.org/10.1021/acs.orglett.6c00300
Abstract
Natural products with biological nitrification inhibition (BNI) activity released from plant roots show potential for increasing the nitrogen-use efficiency and decreasing the extent of environmental pollution. We isolated two diterpenoids, coracanols A (1) and B (2), from finger millet grown under low-nitrogen conditions. Both compounds showed BNI activity against nitrifying bacterium Nitrosomonas europaea. The novel skeletons (1 and 2) featuring a tetracyclo[10.2.2.01,10.02,7]hexadecane core were elucidated by spectroscopic and X-ray crystal structure analyses utilizing the crystalline sponge method.
