对BnaBOR4基因的识别和功能表征揭示了它们在高应力下培育Brassica napus的潜力
Ling Liu1, Yu Luo1, Guangda Ding2
1National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China; Microelement Research Centre, Huazhong Agricultural University, Wuhan 430070, China.
Ecotoxicology and environmental safety
|January 24, 2024
概括
这项研究确定了Brassica napus中的两个功能性排泄基因BnaBOR4.1和BnaBOR4.2,这对高耐受性至关重要. 在位置297的一个关键的烯残留物对运输活动至关重要,为改善作物提供了潜力.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 农业科学 农业科学
背景情况:
- 对于植物来说是必不可少的,但在高度下是有毒的,在干旱/半干旱地区构成农业挑战.
- 对于过剩的土壤的植物补救正在发展,重点是识别高耐的植物及其B排放输送物.
- 布拉西卡纳普斯 (B. napus) 是一种重要的油作物,但对其过多的B耐受性负责的B流输送器是未知的.
研究的目的:
- 为了识别和表征Brassica napus (B. napus) 负责对多余耐受性的流输送基因.
- 研究B. napus.中同类基因与Arabidopsis AtBOR4的功能性作用.
- 为了精确确定参与运输活动的关键氨基酸残留物.
主要方法:
- 在B. napus中确定了四个同源基因 (BnaBOR4.1-4.4),与Arabidopsis AtBOR4.4相关.
- 分析了根尖和成熟区域的基因表达模式.
- 进行了基于酵母的B流动活性测定和使用局部定向突变发生的结构功能分析.
- 通过在高条件下种植转基因阿拉比多普西斯植物来验证基因功能.
主要成果:
- BnaBOR4.1,BnaBOR4.2和BnaBOR4.3显示出构成性表达;BnaBOR4.4被确定为一个伪基.
- 在酵母试验中,BnaBOR4.1,BnaBOR4.2和AtBOR4表现出显著的B流动活性,而BnaBOR4.3则没有.
- 在BnaBOR4.3中,在位置297 (Pro) 和427 (Leu) 的氨基酸替代对于恢复B流动活性至关重要,其中Pro297至关重要.
- 转基因阿拉比多普西斯证实了BnaBOR4基因在高B耐受性中的功能.
结论:
- 在B. napus.中发现了两个功能性排泄基因,BnaBOR4.1和BnaBOR4.2,在B. napus.中发现了两个功能性排泄基因.
- 在位置297的一个关键的烯残留物对流动活性至关重要.
- 这些发现为B. napus的高耐受性提供了洞察力,并暗示了为高土壤开发B. napus品种的潜力.
相关概念视频
02:02Responses to Salt Stress
13.1K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.1K
01:25Cell Signaling in Plants
5.6K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
5.6K
02:35Key Elements for Plant Nutrition
18.8K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.8K