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.

草丛中的横向芽（分er）发育是科学和实用的。一些研究者已经研究了草中芽释放的激素回合。我们确定了高粱双色M.重生期间横向芽中的脱甲酸（ABA）水平，并考虑了在切割后两天内置于79.0％和39.5％的近距离释放的内源性ABA的侧面发育与横向ABA的侧面释放之间的关系，并在近距离均匀散布了39.5％和39.5％的倍数。在切割后的3天内，上部节点中的侧芽伸长大于下部节点的横向伸长。上部和下节点的侧芽中的ABA含量为206.6ng/gf.wt。切割前分别和222.9ng/gf.wt。。切割后，在LDAYS的侧芽中发现ABA量减少了53-63％。侧芽中的abacontents没有差异。然而，在静止的侧芽中，在切割后的2天内维持了高水平的ABA含量。我们共同认为，切割后侧芽含量的降低与侧芽的ABA含量减少有关。

项目成果

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.；

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.；

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）。

H.Nojima,;S.Fuketa,;A.Isoda,;Y.takasaki.: International Grassland Congress XVI. (1989)

H.Nojima,;S.Fuketa,;A.Isoda,;Y.takasaki.：国际草原大会第十六届。