Relationship between the emergence of axillary buds and the cytokinin contents in the roots after pruning in muberry

桑树修剪后腋芽出现与根部细胞分裂素含量的关系

• 批准号: 04454063
• 负责人: YANAGISAWA Yukio
• 金额: $ 3.71万
• 依托单位: Shinshu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04454063/
• 关键词: Cytokinin; Regeneration; Cutting; Root; Emergence and Rooting; Cytokinin Content in Root; 桑の挿木; 発芽; 発根; 桑の再発芽; ゼアチン(Z); ゼアチンリボシド(ZR); イソペンテニルアデノシン(IPA)

These experiments were carried out using seedlings in water culture and hard wood cutting. The regeneration of axillary buds were correlated with cytokinin contents in the main and lateral roots after pruning and cutting. The final results showed that the regeneration was promoted in the retention treatment (RL), followed in decreasing order by the leaf pinching treatment (RP) and the low pruning treatment (LP). Zeatin (Z) content in the main and lateral roots after pruning was higher than that in the nonpruning treatment (C). Z content in the roots of the LP and RP treatments showed the same changes, while that in the RL treatment showed changes similar those in the C treatment. Zeatin riboside (ZR) content in the roots after pruning decreased compared with that of the C treatment in contrast to the Z content. Compared with the ZR content in the RP and LP treatments, the content in the RL treatment tended to be higher. The difference in the ZR content in the lateral roots among the pruning plots was less pronounced than that in the main roots. The content of isopentenyl adenosine (IPA) in the lateral roots differed from those of the Z and ZR contents. IPA content was lower in the pruning plots than in the C treatment, and these changes were similar to those in the ZR content. Isopenitenyl adenine (2iP) content in the pruning plots was very low.

这些实验是用水培和硬枝扦插的幼苗进行的。腋芽的再生与修剪后主根和侧根中细胞分裂素含量相关。结果表明，保留处理促进了再生，其次是剪叶处理和低剪处理。修剪后主根和侧根中玉米素（Z）含量均高于不修剪处理（C）。LP和RP处理根系中Z含量变化趋势一致，RL处理根系中Z含量变化趋势与C处理相似。修剪后根系中玉米素核苷（ZR）含量比C处理降低，而Z含量则相反。与RP和LP处理的ZR含量相比，RL处理的ZR含量有较高的趋势。修剪区侧根ZR含量的差异小于主根。侧根中异戊烯基腺苷（IPA）的含量与Z和ZR的含量不同。IPA含量在修剪小区低于C处理，这些变化与ZR含量的变化相似。异戊烯基腺嘌呤（2iP）含量在修剪样地很低。

项目成果

石井ちか子: "クワ及びクヌギからの抽出サイトカイニンによるクワの腋芽培養" 日本蚕糸学会中部支部講演集. 50. 51 (1994)

Chikako Ishii：“使用从桑树和锯齿栎中提取的细胞分裂素培育桑树腋芽”日本蚕业协会中部分会会议记录 50. 51 (1994)。

Changes of the plant growth regulators of dormant winter buds in mulberry: Proceedings of the Chubu Regional Meeting of the Japanese Society of Sericultural Science. 50. 52 (1994)

桑树休眠冬芽植物生长调节剂的变化：日本蚕业学会中部地区会议论文集。

工藤鉄也: "桑腋芽(夏芽)の生長に対する鱗葉抽出物質の影響" 日本蚕糸学会中部支部講演集. 49. 44 (1993)

Tetsuya Kudo：“鳞叶提取物对桑树腋芽（夏芽）生长的影响”日本蚕业学会中部分会会议记录49. 44（1993）。

柳沢,幸男: "桑条伐採時の残存器官の程度が再生長と根のサイトカイン含量に及ぼす影響" 日本蚕糸学雑誌. 63. 201-205 (1994)

Yanagisawa, Yukio：“桑条切割过程中残留器官的范围对再生生长和根细胞因子含量的影响”日本血清学杂志 63. 201-205 (1994)。

柳沢幸男: "桑条伐採時の残存器官の程度が再生長と根のサイトカイニン含量に及ぼす影響" 日本蚕糸学雑誌. 63. 201-205 (1994)

Yukio Yanagisawa：“桑条切割时残留器官的程度对再生生长和根细胞分裂素含量的影响”日本血清学杂志 63. 201-205 (1994)。