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相关概念视频

Responses to Drought and Flooding02:41

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Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
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Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
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相关实验视频

Updated: Jul 1, 2025

Agrobacterium-Mediated Immature Embryo Transformation of Recalcitrant Maize Inbred Lines Using Morphogenic Genes
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ZmADF5是一种玉米的活性脱聚合因子,可以提高玉米的干旱耐受性.

Bojuan Liu1, Nan Wang2, Ruisi Yang1

  • 1State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.

Plants (Basel, Switzerland)
|March 13, 2024
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概括

一个新发现的玉米基因ZmADF5通过减少水损失和改善应激反应来增强干旱耐受性. 这一发现有助于为干旱地区开发更有弹性的作物.

关键词:
在 ZmADF5F5 中.耐旱耐受性 耐旱耐受性玉米 (Zea mays L.) 是一种大豆.转录组分析转录组分析

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Lignin Down-regulation of Zea mays via dsRNAi and Klason Lignin Analysis
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相关实验视频

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Agrobacterium-Mediated Immature Embryo Transformation of Recalcitrant Maize Inbred Lines Using Morphogenic Genes
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科学领域:

  • 植物生物学 植物生物学
  • 遗传学 遗传学 是一个
  • 农业科学 农业科学

背景情况:

  • 干旱压力对作物产量产生重大影响,特别是在缺水地区.
  • 识别耐旱基因对于提高作物适应性和粮食安全至关重要.

研究的目的:

  • 为了识别和描述涉及到玉米干旱耐受性的新型基因.
  • 研究ZmADF5基因在植物对缺水压力的反应中的作用.

主要方法:

  • 全基因组关联分析以确定耐旱的定量特征位置.
  • 在奥斯莫斯压力和酸 (ABA) 治疗下进行基因表达分析.
  • 在阿拉比多普西斯和玉米中进行过度表达研究,以评估ZmADF5功能.
  • 转录组分析以确定下游调节的基因.

主要成果:

  • 鉴定了ZmADF5,一种actin-depolymerizing因子基因,并与干旱耐受性有关.
  • ZmADF5的表达是由透应激和ABA诱导的;它的过度表达改善了干旱下的植物生存.
  • 过度表达减少了口腔孔径,水损失和反应性氧物种,并增强了ABA敏感性.
  • 确定了17个差异表达的基因,包括ABA依赖的干旱反应基因.

结论:

  • ZmADF5在调解玉米干旱应激反应方面发挥着重要作用.
  • 该基因在依赖ABA的途径中起作用,以提高植物的用水效率和抗压能力.
  • ZmADF5是基因工程改善作物干旱耐受性的有希望的候选者.