CO_2 action on the regulation of plant vernalization

CO_2对植物春化的调节作用

• 批准号: 04660022
• 负责人: YOSHIOKA Toshihito
• 金额: $ 1.34万
• 依托单位: Tohoku 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: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04660022/
• 关键词: Vernalizatrion; Carbon dioxide; Regulation of flowering; Evolution of life history; Environmental plant physiology

1. Effects of CO_2 on vernalization were investigated for revealing if CO_2 plays a regulatory role in the process of development in plants2. In Jappanese radish, the extent of seed vernalization decreased as CO_2 was observed under some water stressed conditions which restrict the growth of the plants, thus, the CO_2 action for regulation of seed vernalization was seems to arise independent of the retardation of growth by CO_2 application.3. The inhibitory actions of CO_2 on the vernalization were also observed in ungerminated seeds or greenn plants.4. Because the CO_2 action was further enhanced when it was applied with NBD or uniconazole, it may be possible to regulate the advancement of vernalization by coontrol the gaseous conditions.5. Plants in Erigeron canadensis, which is classified into summer annuals or biennials, were flowered and set fertile seeds within the year, when their ungerminated seeds were treated with cold temperature. This implys that the ungerminated seed vernalization may be one of the key factors which contribute to the evolution of plant life history ; biennials to annuals.

1.研究了CO_2对植物春化的影响，以揭示CO_2是否在植物发育过程中起调控作用。在限制植株生长的水分胁迫条件下，种子春化程度随着CO_2浓度的升高而降低，因此，CO_2对种子春化的调节作用似乎独立于CO_2施用量对生长的抑制作用。在未萌发的种子或绿色植物中也观察到CO_2对春化的抑制作用。由于当施加NBD或烯效唑时，CO_2的作用进一步增强，因此有可能通过控制气体条件来调节春化的进程。加拿大灯盏花属植物分为夏季一年生或两年生，其未萌发的种子经低温处理后，可在当年开花结实。这意味着未萌发的种子春化可能是促成植物生活史从两年生到一年生的关键因素之一。

项目成果

YOSIOKA T., S.SATOH & Y.ESASHI: "CO_2 action on the regulation of seed vernalization in Japanese radish" Journal of Japanese Society for Horticultural Science. 64 suppl. (1). (1994)

YOSIOKA T., S.SATOH

吉岡俊人,佐藤茂,江刺洋司: "ダイコンの種子バーナリゼーションに及ぼすCO_2の影響" 園芸学雑誌. 63別(1)(発表予定). (1994)

Toshito Yoshioka、Shigeru Sato、Yoji Esashi：“CO_2 对萝卜种子春化的影响”，园艺杂志 63 (1)（待出版）。