Functional analysis of sporopollenin biosynthetic pathway in pollen exine

花粉外壁孢粉素生物合成途径的功能分析

• 批准号: 20570047
• 负责人: ITO Takuya
• 金额: $ 2.58万
• 依托单位: The Institute of Physical and Chemical Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20570047/
• 关键词: シロイヌナズナ; 花粉壁; エキシン; 3-Ketoacyl-CoA合成酵素; BAHDアシル基転移酵素; スポロポレニン

The outer layer of pollen wall, which is called exine, is made of "sporopollenin" polymer. But its chemical structure remains unknown because it is extremely resistant against nonoxidative degradation. The representative analyzed function of Arabidopsis 3-ketoacyl-CoA synthases and a BAHD acyl transferase for their involvement in exine formation. A BAHD mutant showed a subtle phenotypic change in exine appearance. The BAHD gene, therefore, is suggested to be involved in exine formation.

花粉壁的外层称为外观，由“孢子囊素”聚合物制成。但是它的化学结构仍然未知，因为它具有极大的抗性降解。代表性分析的拟南芥3-酮酰基-COA合酶和BAHD酰基转移酶的功能，用于参与外部形成。泰铢突变体在外观外观显示出细微的表型变化。因此，建议BAHD基因参与外部形成。

项目成果

花粉成熟に必須なシロイヌナズナMS1転写因子が制御するアシル基転移酵素遺伝子の機能解析

花粉成熟必需的拟南芥MS1转录因子调控的酰基转移酶基因的功能分析

• 发表时间: 2009
• 作者: 伊藤卓也;松田史生;峠隆之;長田裕之;斉藤和季;篠崎一雄
• 通讯作者: 篠崎一雄