Effect of phytohormone on tiller bud release in Sorghum bicolor M.

植物激素对高粱分蘖芽释放的影响。

• 批准号: 62560013
• 负责人: NOJIMA Hiroshi
• 金额: $ 1.34万
• 依托单位: CHIBA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1987
• 资助国家: 日本
• 起止时间: 1987 至 1988
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-62560013/
• 关键词: Phytohormone; Abscisic Acid; Sorghum; Apical dominance; Regrowth; 分げつ; エンザイムイムノアッセイ; オーキシン; 項芽優勢; 再生分げつ; 頂芽優性; えき芽

Lateral bud (tiller) development in grasses is scientific and practical importance. Hormonal reguration for bud release in grasses has been studied by some investigators.We determined the levels of abscisic acid (ABA) in lateral buds during regrowth of Sorghum bicolor M. and considered the relationship between the lateral bud development and the contents of endogenous ABA.Per cent of lateral buds release within 2 days after cutting were 79.0% and 39.5% in the upper node and in the lower node of stubble,respectively. Lateral bud elongation in the upper node is larger than that in the lower one within 3 days after cutting. ABA contents in lateral buds of the upper and the lower node were 206.6ng/gf.wt. and 222.9ng/gf.wt., respectively before cutting. It was found of a 53-63% decrease in the amount of ABA in the lateral bud on ldays after cutting.The ABAcontents in lateral buds showed no difference. In quiescent lateral bud,however, the high level of ABA content was maintained within 2 days after cutting. We cosidered that the lateral bud release is associated with the decrease in the ABA content of the lateral bud following cutting.

禾本科牧草侧芽(分蘖)发育具有重要的科学意义和实用价值。对高粱再生过程中侧芽中脱落酸(ABA)的含量进行了测定，并探讨了侧芽发育与内源ABA含量的关系。割后2天内，侧芽在留茬上部和下部的释放率分别为79.0%和39.5%。插穗后3d内，上部的侧芽伸长率大于下部。上、下节侧芽ABA含量分别为206.6 ng/gf.wt。和222.9 ng/gf.wt.插穗后1d，侧芽中ABA含量下降53-63%，侧芽中ABA含量无明显变化。而在静止期侧芽中，ABA含量在插穗后2天内仍维持在较高水平。我们认为，侧芽的释放与插穗后侧芽中ABA含量的下降有关。

项目成果

Fuketa,S.;Nojima,H.;Isoda,S.; Takasaki,Y.: "Endogenous ABA in lateral bud after cutting in Sorghum." Japan Jour.Crop Sci.57(extra.1). 127-128 (1988)

Fuketa，S.；Nojima，H.；Isoda，S.；

Nojima,H;Fukeka,S.;Isoda,A.; Takasaki,Y.: "Levels of Abscisic Acid in Lateral buds during Regrowth of Sorghum bicolor M." Internatioal Grassland Congress XVI. (1989)

野岛，H；深香，S.；矶田，A.；

H.Nojima・S,Fuketa・A,Isoda・Y,Takasaki: Interanational Grassland Congress XVI.(1989)

H.Nojima・S，Fuketa・A，Isoda・Y，Takasaki：第十六届国际草原大会（1989）

野島 博: 日本作物学会紀事. 57,1. (1988)

野岛宏：日本作物科学学会杂志 57,1（1988）。

更田真一郎、野島博、礒田昭弘、高崎康夫: 日本作物学会紀事. 57巻(別1). 127-128 (1988)

Shinichiro Sarata、Hiroshi Nojima、Akihiro Isoda、Yasuo Takasaki：日本作物科学学会杂志第 57 卷（第 1 部分）（1988 年）。