转录因子DcbZIPs在寒冷压力期间调节Dendrobium catenatum中的二次代谢
Xiaohui Zhou1,2, Chenfei Lu1,2, Fenfen Zhou2
1State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China.
Physiologia plantarum
|September 11, 2024
概括
这项研究在Dendrobium catenatum中确定了62个基本区域/氨酸拉链 (bZIP) 基因,发现58个对寒冷应激有反应. 特定的DcbZIP基因,如DcbZIP6和DcbZIP28,对于在寒冷条件下调节二次代谢至关重要.
科学领域:
- 植物科学 植物科学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 寒冷压力显著影响植物生长和二次新陈代谢.
- 基本区域/素拉链 (bZIP) 转录因子是植物寒冷应激反应的关键调节者.
- 在寒冷压力下的Dendrobium catenatum中bZIP基因的作用在很大程度上仍然未被描述.
研究的目的:
- 为了识别和表征bZIP基因家族在Dendrobium catenatum.
- 为了研究DcbZIP基因对寒冷压力的反应.
- 为了阐明特定的DcbZIP基因在寒冷压力下的二次代谢途径中的参与.
主要方法:
- 在Dendrobium catenatum中全基因组识别DcbZIP基因.
- 对DcbZIP基因家族结构和亚家族分类的生物信息分析.
- 对经过冷处理的D. catenatum幼苗进行转录组分析,以评估基因表达.
- 同表达网络分析以确定DcbZIP基因与代谢途径之间的相关性.
主要成果:
- 总共有62个DcbZIP基因被确定并分为13个子家族.
- 58个DcbZIP基因在应对寒冷压力时表现出改变的表达.
- DcbZIP3,DcbZIP6和DcbZIP28在对寒冷的反应中显示出显著诱导的表达.
- DcbZIP6与黄代谢基因负相关,而DcbZIP28与多糖代谢基因负相关.
结论:
- DcbZIP基因家族在Dendrobium catenatum对寒冷压力的反应中发挥着重要作用.
- 在寒冷条件下,DcbZIP6和DcbZIP28特别参与调节分别的黄和多糖代谢.
- 这些发现为D. catenatum在寒冷压力期间控制二次代谢的分子机制提供了新的见解.
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