1998 Fiscal Year Annual Research Report

植物の運動と感覚に関する化学的研究

Research Project

Project/Area Number	09101001
Research Institution	Keio University
Principal Investigator	山村庄亮慶應義塾大学, 理工学部, 教授 (40076708)
Co-Investigator(Kenkyū-buntansha)	横谷香織筑波大学, 応用生物化学系, 助手 (10217531) 長谷川宏司筑波大学, 応用生物化学系, 教授 (70094167) 上田実慶應義塾大学, 理工学部, 助手 (60265931) 小瀬村誠治慶應義塾大学, 理工学部, 講師 (70231313)
Keywords	光屈性 / 植物の成長抑制物質 / SAUR遺伝子 / 光屈性天然分子 / 植物の就眠運動 / 就眠物質 / 覚醒物質 / 生物時計
Research Abstract	植物の光屈性:光屈性についてはCholodony-Went説が定説となっているが、最近、光屈性の原因として光側に成長抑制物質が生成することが示された。筆者らは、前年度において、特に、トウモロコシの光屈性天然分子が成長を促進するオーキシンと拮抗し、SAUR遺伝子の発現を抑制することを明らかにした。さらに、ベンゾオキサゾリノン類が真のトウモロコシの光屈性天然分子であることを明らかにするために、光屈性に応答しないトウモロコシの変異株がべンゾオキサゾリノンを生産しないが、その受容体を有していることを実験的に明らかにした。その他、ヒマワリやダイコン等については、光側及び影側での光屈性天然分子の生成量と伸長について詳細に検討し、いずれの実験結果もCholodony-Went説を否定するものである。植物の就眠運動と生物時計:一般に、オジギソウやネムノキに代表される多くの植物は、ほぼ一日周期で葉の開閉運動(就眠運動)を行い、その運動は体内時計により制御される。前年度に引続き、筆者らはコミカンソウから就眠及び覚醒物質をペアで単離・構造決定した。特に、オジギソウから、刺激伝達物質とは別に就眠、覚醒の両物質を単離・構造決定し、従来の定説に反することがわかった。また、同一植物からこれまでペアで見つかっている就眠、覚醒の両物質の中、一方のみがグリコシド体であり、夕方または早朝になると、グリコシダーゼが働いてグリコシド結合をもつ覚醒または就眠物質の濃度が減少することも寒験的に証明し、就眠運動が就眠、覚醒の両物質の濃度バランスの変化によることを明らかにした。

Research Products
(17 results)

All Other

All Publications (17 results)

[Publications] M.Ueda: "Phyllurine,leaf-opening substance of a nyctinastic plant,Phyllanthus urinaria L." Tetrahedron Lett.39. 9731-9734 (1998)
[Publications] M.Ueda: "Chemical studies on plant movement" Curr.Org.Chem. 2. 437-461 (1998)
[Publications] M.Ueda: "Chemical substances controlling the leaf-movement of plants" Reviews on Heteroatom Chemistry. 19. 237-260 (1998)
[Publications] M.Kushima: "An allelopathic substance exuded from geminating watermelon seeds." Plant Growth Regulation. 25. 1-4 (1998)
[Publications] K.Yamada: "Lepidimoide promotes light-induced chlorophyll accumlation in cotyledons of sunflower seedlings." J.Plant Growth Regulation. 17. 215-219 (1998)
[Publications] T.Anai: "Nucleotide sequence of oat(Avena sativa L.)cDNA encoding an auxin-binding protein" DNA Sequence. 8. 235-239 (1998)
[Publications] M.Ueda: "Leaf-opening substance of Mimosa pudica L.;Chemical studies on the other leaf-movement of mimosa" Tetrahedron Lett.40. 353-356 (1999)
[Publications] M.Ueda: "Leaf-closing substance of Mimosa pudica L.;Chemical studies on another leaf-movement of Mimosa II" Tetrahedron Lett.40(印刷中). (1999)
[Publications] M.Ueda: "The enzymatic transformation of leaf-movement factor in Lespedeza cuneata G.Don controlled by a biological clock" Chem.Lett. 1. 1-2 (1998)
[Publications] T.Ohnuki: "Molecular mechanism of the control of nyctinastic leaf-movement by biological clock in Lespedeza cuneata G.Don" Tetrahedron. 54. 12173-12184 (1998)
[Publications] M.Ueda: "Chemical substances controlling the leaf-movement of a anctinastic plant,Cassia mimosoidesl." Phytochemistry. 49. 633-635 (1998)
[Publications] M.Ueda: "Leaf-opening substance of a nyctinastic plant,Albizzia julibrissin Durazz." Biosci.Biotechnol.Biochem. 62. 2133-2137 (1998)
[Publications] H.Kato-Noguchi: "Allelopathic potential of 5-chloro-6-methoxy-2-benzoxazolinone." Phytochemistry. 48. 433-435 (1998)
[Publications] T.Anai: "Nucleotide sequence of oat(Avena sativa L.)cDNA encoding anauxin-binding protein(ABP1)." J.Sequencing and Mapping. 8. 235-239 (1998)
[Publications] D-Y.He: "Gene activation by cytoplasmic acidification in suspension-cultured rice cells in response to the potent elicitor,N-acetylchitoheptose." Molecular Plant-Microbe Interactions. 11. 1167-1174 (1998)
[Publications] M.Ueda: "Chemical studies on the nyctinastic leaf-movemnt regulated by a biological clock" Heterocycles. (印刷中). (1999)
[Publications] "8-Epixanthatin,a light-induced growth inhibitor,mediates thephototropic curvature in sunflower hypocotyls" Physiol.Plant. (印刷中). (1999)

1998 Fiscal Year Annual Research Report

植物の運動と感覚に関する化学的研究

Principal Investigator

山村 庄亮 慶應義塾大学, 理工学部, 教授 (40076708)

Research Products

[Publications] M.Ueda: "Phyllurine,leaf-opening substance of a nyctinastic plant,Phyllanthus urinaria L." Tetrahedron Lett.39. 9731-9734 (1998)

[Publications] M.Ueda: "Chemical studies on plant movement" Curr.Org.Chem. 2. 437-461 (1998)

[Publications] M.Ueda: "Chemical substances controlling the leaf-movement of plants" Reviews on Heteroatom Chemistry. 19. 237-260 (1998)

[Publications] M.Kushima: "An allelopathic substance exuded from geminating watermelon seeds." Plant Growth Regulation. 25. 1-4 (1998)

[Publications] K.Yamada: "Lepidimoide promotes light-induced chlorophyll accumlation in cotyledons of sunflower seedlings." J.Plant Growth Regulation. 17. 215-219 (1998)

[Publications] T.Anai: "Nucleotide sequence of oat(Avena sativa L.)cDNA encoding an auxin-binding protein" DNA Sequence. 8. 235-239 (1998)

[Publications] M.Ueda: "Leaf-opening substance of Mimosa pudica L.;Chemical studies on the other leaf-movement of mimosa" Tetrahedron Lett.40. 353-356 (1999)

[Publications] M.Ueda: "Leaf-closing substance of Mimosa pudica L.;Chemical studies on another leaf-movement of Mimosa II" Tetrahedron Lett.40(印刷中). (1999)

[Publications] M.Ueda: "The enzymatic transformation of leaf-movement factor in Lespedeza cuneata G.Don controlled by a biological clock" Chem.Lett. 1. 1-2 (1998)

[Publications] T.Ohnuki: "Molecular mechanism of the control of nyctinastic leaf-movement by biological clock in Lespedeza cuneata G.Don" Tetrahedron. 54. 12173-12184 (1998)

[Publications] M.Ueda: "Chemical substances controlling the leaf-movement of a anctinastic plant,Cassia mimosoidesl." Phytochemistry. 49. 633-635 (1998)

[Publications] M.Ueda: "Leaf-opening substance of a nyctinastic plant,Albizzia julibrissin Durazz." Biosci.Biotechnol.Biochem. 62. 2133-2137 (1998)

[Publications] H.Kato-Noguchi: "Allelopathic potential of 5-chloro-6-methoxy-2-benzoxazolinone." Phytochemistry. 48. 433-435 (1998)

[Publications] T.Anai: "Nucleotide sequence of oat(Avena sativa L.)cDNA encoding anauxin-binding protein(ABP1)." J.Sequencing and Mapping. 8. 235-239 (1998)

[Publications] D-Y.He: "Gene activation by cytoplasmic acidification in suspension-cultured rice cells in response to the potent elicitor,N-acetylchitoheptose." Molecular Plant-Microbe Interactions. 11. 1167-1174 (1998)

[Publications] M.Ueda: "Chemical studies on the nyctinastic leaf-movemnt regulated by a biological clock" Heterocycles. (印刷中). (1999)

[Publications] "8-Epixanthatin,a light-induced growth inhibitor,mediates thephototropic curvature in sunflower hypocotyls" Physiol.Plant. (印刷中). (1999)

山村庄亮慶應義塾大学, 理工学部, 教授 (40076708)